WO2013132804A1 - 搬送装置およびセラミック部材 - Google Patents
搬送装置およびセラミック部材 Download PDFInfo
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- WO2013132804A1 WO2013132804A1 PCT/JP2013/001245 JP2013001245W WO2013132804A1 WO 2013132804 A1 WO2013132804 A1 WO 2013132804A1 JP 2013001245 W JP2013001245 W JP 2013001245W WO 2013132804 A1 WO2013132804 A1 WO 2013132804A1
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- ceramic
- ceramic member
- electric heating
- ceramic layer
- layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6831—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using electrostatic chucks
- H01L21/6833—Details of electrostatic chucks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67712—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations the substrate being handled substantially vertically
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67103—Apparatus for thermal treatment mainly by conduction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67739—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber
- H01L21/67742—Mechanical parts of transfer devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N13/00—Clutches or holding devices using electrostatic attraction, e.g. using Johnson-Rahbek effect
Definitions
- the present invention relates to a conveying device and a ceramic member.
- the ceramic member that holds the body to be transported in the transport apparatus is also called a pick, and is formed by integrally firing a plurality of ceramic layers (see, for example, Patent Documents 1 and 2), or a body to be transported that is a dielectric ( For example, a wafer is known that can be attracted by an electrostatic force (see, for example, Patent Document 3).
- An adsorption electrode which is an electrode for generating an electrostatic force, is provided inside the ceramic member that adsorbs the conveyed object by the electrostatic force.
- a member in which a plurality of protrusions are arranged on the surface and an electric heating body is provided inside has been proposed (for example, see Patent Document 4). .
- the present invention has been made to solve the above-described problems, and can be realized as the following modes.
- a ceramic member configured to be movable together with the transported body in a state where the transported body is held in a transport apparatus.
- the ceramic member has a plurality of ceramic layers that have insulating properties and are integrally fired; and is formed on the first ceramic layer of the plurality of ceramic layers inside the plurality of ceramic layers,
- An attracting electrode which is an electrode configured to be capable of attracting a dielectric by electric power; and on a second ceramic layer farther than the first ceramic layer from the side of the plurality of ceramic layers holding the transported body
- An electric heating element that generates heat based on electric power; a power supply port that receives supply of electric power to the electric heating element from the outside of the ceramic member; and the first ceramic layer and the second ceramic layer among the plurality of ceramic layers
- a via is a conductor which electrically connects the through at least one of the electric heater and the land.
- the electric heating element formed on the second ceramic layer after forming the adsorption electrode on the first ceramic layer on the side holding the transported body and securing the adsorption force by the electrostatic force, the electric heating element formed on the second ceramic layer.
- the degree of freedom of the arrangement and shape of the electric heating element on the second ceramic layer can be improved.
- the temperature adjustment by the electric heater can be effectively performed without hindering the adsorptive force due to the electrostatic force, and as a result, the conveyance performance of the conveyance device can be improved.
- a facing surface that is a surface along the layer surface direction of the plurality of ceramic layers and that faces the transported body while holding the transported body;
- a bottom surface which is a surface along the layer surface direction and located on a side opposite to the facing surface, and the electric heating body may be positioned closer to the bottom surface than the facing surface. According to this embodiment, temperature unevenness on the facing surface can be suppressed, and temperature adjustment by the electric heating body can be performed more effectively.
- a negative pressure communication path formed inside the plurality of ceramic layers and extending along a layer surface direction of the plurality of ceramic layers, the negative pressure communication path configured to be capable of supplying negative pressure.
- the electric heating body may be positioned on the side holding the transported body with respect to the negative pressure communication path. According to this aspect, it is possible to avoid heat insulation between the electric heating body and the transported body by the negative pressure communication path, and it is possible to more effectively perform temperature adjustment by the electric heating body.
- the electric heating element includes a first electric heating element arranged on an outer peripheral side of the second ceramic layer and a second electric heating element arranged inside the first electric heating element.
- the heating value per unit area of the first electric heating element may be larger than the heating value per unit area of the second electric heating element. According to this embodiment, temperature unevenness between the outer peripheral side and the inner side of the ceramic member can be suppressed, and temperature adjustment by the electric heating body can be performed more effectively.
- the conveying apparatus which conveys the said to-be-conveyed body using the ceramic member of the said form.
- the ceramic member in the ceramic member, the temperature adjustment by the electric heating body can be effectively performed without hindering the adsorption force due to the electrostatic force. As a result, the conveyance performance of the conveyance device can be improved.
- the present invention can be realized in various forms other than the ceramic member and the conveying device.
- it is realizable with forms, such as a conveyance pick, a semiconductor manufacturing apparatus, a conveyance method, and a manufacturing method of a ceramic member.
- FIG. 5 is an explanatory view showing a ceramic layer viewed from a position corresponding to the arrow F5-F5 in FIG.
- FIG. 5 is an explanatory view showing a ceramic layer viewed from a position corresponding to an arrow F6-F6 in FIG.
- FIG. 5 is an explanatory view showing a ceramic layer viewed from a position corresponding to an arrow F6-F6 in FIG.
- FIG. 7 is an explanatory diagram showing a cross section of the ceramic member viewed from a position corresponding to the arrow F7-F7 in FIG.
- FIG. 5 is an explanatory view showing a ceramic layer viewed from a position corresponding to an arrow F8-F8 in FIG.
- FIG. 5 is an explanatory diagram showing a ceramic layer viewed from a position corresponding to the arrow F9-F9 in FIG.
- FIG. 5 is an explanatory diagram showing a ceramic layer viewed from a position corresponding to an arrow F10-F10 in FIG.
- FIG. 10 is an explanatory view showing a cross section of the ceramic member viewed from a position corresponding to the arrow F11-F11 in FIG.
- FIG. 16 is an explanatory view showing a cross section of the ceramic member as seen from an arrow F16-F16 in FIG.
- FIG. 18 is an explanatory view showing a cross section of the ceramic member as seen from an arrow F18-F18 in FIG. It is explanatory drawing which shows the cross section of the ceramic member in 7th Embodiment. It is explanatory drawing which shows the manufacturing process of a ceramic member.
- FIG. 1 is an explanatory diagram showing the configuration of the transport apparatus 10.
- the transport apparatus 10 transports the transported body 90.
- the transfer apparatus 10 is an apparatus that constitutes a part of a semiconductor manufacturing apparatus, and the transferred object 90 is a silicon wafer that is a disk-shaped dielectric.
- the transfer device 10 includes a control unit 100, a ceramic member 200, an arm mechanism 710, a moving mechanism 720, an adsorption electrode driving unit 830, a negative pressure supply unit 840, an electric heating element driving unit 850, and a processing gas supply unit. 860.
- the control unit 100 of the transport apparatus 10 controls operations of the arm mechanism 710, the moving mechanism 720, the adsorption electrode driving unit 830, the negative pressure supply unit 840, the electric heater driving unit 850, and the processing gas supply unit 860.
- the function of the control unit 100 is realized by the operation of a CPU (Central Processing Unit) based on a computer program.
- the function of the control unit 100 may be realized by operating an ASIC (Application Specific Integrated Circuit) based on its circuit configuration.
- the arm mechanism 710 of the transport device 10 is a mechanism that connects the ceramic member 200 and the moving mechanism 720, moves the ceramic member 200 relative to the moving mechanism 720, and is transported to the outside of the transport device 10.
- Deliver the body 90 The moving mechanism 720 of the transfer device 10 is a mechanism that is mounted with the ceramic member 200 and the arm mechanism 710 and is relatively movable with respect to the outside of the transfer device 10, and is to be transferred held by the ceramic member 200. The body 90 is moved.
- the ceramic member 200 of the transport apparatus 10 is also called a pick, and is configured to be movable together with the transported body 90 while holding the transported body 90 in the transport apparatus 10.
- the ceramic member 200 is formed by integrally firing a plurality of ceramic layers using an insulating ceramic material. Inside the ceramic member 200, a conductor pattern using a conductive material is formed.
- the main component of the insulating ceramic material used for the ceramic member 200 is aluminum oxide (alumina) (Al2O3).
- the main component of the insulating ceramic material is yttria oxide (Y 2 O 3), silicon oxide (SiO 2), zirconium oxide (ZrO 2), magnesium oxide (MgO), mullite (3Al 2 O 3 .2SiO 2), or glass ceramic ( For example, it may be a mixture of alumina and borosilicate glass.
- the main component of the conductive material used for the ceramic member 200 is tungsten (W).
- the main component of the conductive material may be molybdenum (Mo), tantalum (Ta), silver (Ag), or copper (Cu), an alloy of these conductive metals, conductive Silicon carbide (SiC) may be used.
- the ceramic member 200 is configured to be capable of attracting the transported body 90, which is a dielectric, with electrostatic force by receiving power supply from the attracting electrode driving unit 830. Details of the configuration for electrostatic adsorption in the ceramic member 200 will be described later.
- the ceramic member 200 is configured to be capable of adsorbing the transported body 90 at a negative pressure by receiving a negative pressure (vacuum) from the negative pressure supply unit 840. Details of the configuration for negative pressure adsorption in the ceramic member 200 will be described later.
- the ceramic member 200 is configured to be able to generate heat by receiving power supply from the electric heating element driving unit 850. Details of the structure for generating heat in the ceramic member 200 will be described later.
- the ceramic member 200 is configured to be able to release the processing gas to the transported body 90 by receiving the processing gas supplied from the processing gas supply unit 860.
- the processing gas supplied to the ceramic member 200 by the processing gas supply unit 860 is a heat transfer gas (for example, helium (He)) for transferring the heat of the ceramic member 200 to the transported body 90. is there. Details of the configuration for releasing the processing gas in the ceramic member 200 will be described later.
- FIG. 2 is an explanatory view showing the upper surface of the ceramic member 200.
- FIG. 3 is an explanatory view showing a side surface of the ceramic member 200 as viewed from the direction of the arrow F3 in FIG.
- FIG. 4 is an explanatory view showing a cross section of the ceramic member 200 as viewed from the direction of arrows F4-F4 in FIG.
- FIG. 2 shows XYZ axes orthogonal to each other.
- the XYZ axes in FIG. 2 correspond to the XYZ axes in other figures including FIG. 3 and FIG.
- the ceramic member 200 has a substantially U-shaped plate shape.
- the axis along the horizontal direction of the U-shape in the ceramic member 200 is the X-axis
- the axis along the vertical direction of the U-shape is the Y-axis
- the axis along the gravity direction Is the Z axis.
- the + X axis direction from the right side to the left side of the U-shape in the ceramic member 200 is set as the -X axis direction.
- the + Y-axis direction from the closed end of the U-shape of the ceramic member 200 toward the open end is set as the + Y-axis direction, and vice versa.
- the direction from the bottom to the top in the direction of gravity is the + Z-axis direction, and the opposite is the ⁇ Z-axis direction.
- the conveyed object 90 is held on a surface of the ceramic member 200 parallel to the X axis and the Y axis.
- the thickness direction of the ceramic member 200 corresponds to the Z-axis direction.
- the ceramic member 200 includes seven ceramic layers 291, 292, 293, 294, 295, 296, and 297 as a plurality of ceramic layers. These ceramic layers are laminated in this order from the bottom surface 216 side: ceramic layer 291, ceramic layer 292, ceramic layer 293, ceramic layer 294, ceramic layer 295, ceramic layer 296, and ceramic layer 297.
- the layer surface direction of these ceramic layers is a direction along a plane parallel to the X axis and the Y axis.
- the number of ceramic layers in the ceramic member 200 is not limited to seven. In other embodiments, the number may be six or less, or may be eight or more.
- the ceramic member 200 includes a base end surface 211, base end side surfaces 213 and 214, a base end top surface 215, a bottom surface 216, a through hole 218, a base end stepped surface 219, front end surfaces 222 and 223, and an outer surface 224. , 225, inner side surfaces 221, 226, 227, opposing surfaces 231, 232, 233, 234, 235, tip upper surfaces 242, 243, and tip step surfaces 248, 249.
- the base end surface 211 of the ceramic member 200 is a surface parallel to the X axis and the Z axis and facing the ⁇ Y axis direction.
- the base end surface 211 is located at the end in the ⁇ Y-axis direction of the ceramic member 200 and constitutes a base end portion that is an end on the side attached to the transport apparatus 10.
- the base end surface 211 is connected to the base end side surfaces 213 and 214, the base end top surface 215, and the bottom surface 216.
- the base end side surface 213 of the ceramic member 200 is a surface parallel to the Z axis facing the ⁇ X axis direction and the ⁇ Y axis direction, and is formed between the base end surface 211 and the outer surface 224.
- the base end side surface 214 of the ceramic member 200 is a surface parallel to the Z axis that faces the + X axis direction and the ⁇ Y axis direction, and is formed between the base end surface 211 and the outer surface 225.
- the base end upper surface 215 of the ceramic member 200 is a surface parallel to the X axis and the Y axis and facing the + Z axis direction.
- the proximal end upper surface 215 is connected to the proximal end surface 211 and the proximal end side surfaces 213 and 214.
- the base end upper surface 215 is provided on the + Z-axis direction side of the opposing surfaces 231 and 232.
- a proximal step surface 219 is formed between the proximal upper surface 215 and the opposing surface 231.
- the + Y-axis direction side of the base end upper surface 215, the base end step surface 219, and the ⁇ Y-axis direction side of the opposing surface 231 are circular along the outer shape of the transported body 90. It is formed in an arc shape.
- the bottom surface 216 of the ceramic member 200 is a surface parallel to the X-axis and the Y-axis and facing the ⁇ Z-axis direction.
- the bottom surface 216 is a substantially U-shaped surface that is the same as the overall shape of the ceramic member 200, and includes a base end surface 211, base end side surfaces 213 and 214, front end surfaces 222 and 223, outer side surfaces 224 and 225, and inner side surfaces 221 and 226, It connects to each surface of 227.
- the through hole 218 of the ceramic member 200 penetrates between the base end upper surface 215 and the bottom surface 216 along the Z axis.
- the ceramic member 200 is attached to the arm mechanism 710 using the through hole 218.
- the number of through-holes 218 is two, but in other embodiments, it may be three or more.
- the tip surfaces 222 and 223 of the ceramic member 200 are arcuate surfaces that are parallel to the Z axis and convex in the + Y axis direction.
- the front end surfaces 222 and 223 are positioned at the end of the ceramic member 200 in the + Y-axis direction, and constitute a front end portion in which opposed surfaces 231, 232, 234, 234, and 235 are disposed between the front end surfaces 211.
- the distal end surface 222 is located on the ⁇ X axis direction side, and the distal end surface 223 is located on the + X axis direction side.
- the front end surface 222 is connected to the bottom surface 216, the outer side surface 224, the inner side surface 226, the facing surface 231, and the front end upper surface 242.
- the tip surface 223 is connected to the bottom surface 216, the outer surface 225, the inner surface 227, the facing surface 231, and the tip upper surface 243.
- the outer side surface 224 of the ceramic member 200 is a surface parallel to the Y axis and the Z axis and facing the ⁇ X axis direction, and is formed between the distal end surface 222 and the proximal end side surface 213.
- the outer surface 225 of the ceramic member 200 is a surface parallel to the Y axis and the Z axis and facing the + X axis direction, and is formed between the distal end surface 223 and the proximal end side surface 214.
- the outer side surfaces 224 and 225 are outer peripheral portions that form the outer periphery of the ceramic member 200.
- the inner side surface 221 of the ceramic member 200 is a circular arc surface that is parallel to the Z-axis and concave in the + Y-axis direction, and is formed between the inner side surface 226 and the inner side surface 227.
- the inner surface 226 of the ceramic member 200 is a surface parallel to the Y axis and the Z axis and facing the + X axis direction, and is formed between the tip surface 222 and the inner surface 221.
- the inner side surface 227 of the ceramic member 200 is a surface parallel to the Y axis and the Z axis and facing the ⁇ X axis direction, and is formed between the front end surface 223 and the inner side surface 221.
- the inner side surfaces 221, 226, and 227 are outer peripheral portions that form the outer periphery of the ceramic member 200.
- the facing surfaces 231, 232, 233, 234, and 235 of the ceramic member 200 are surfaces that are parallel to the X-axis and the Y-axis and face the + Z-axis direction.
- the facing surfaces 231, 232, 233, 234, and 235 face the transported body 90 in a state where the transported body 90 is held on the ceramic member 200.
- the opposing surfaces 232 and 234 are hatched to facilitate understanding of the drawing.
- the opposing surfaces 231, 233, and 235 are first opposing surfaces located on the bottom 216 side of the opposing surfaces 232 and 234, that is, on the ⁇ Z axis direction side of the opposing surfaces 232 and 234.
- the facing surfaces 232 and 233 are second facing surfaces located on the transported object 90 side with respect to the facing surfaces 231, 233 and 235, that is, on the + Z-axis direction side with respect to the facing surfaces 231, 233 and 234.
- the opposing surfaces 231, 232, 233, 234, and 235 are formed by cutting the ceramic layer 297 after the ceramic member 200 is integrally fired.
- the facing surface 235 is a substantially U-shaped plane when viewed from the Z-axis direction.
- the facing surface 234 is a plane that is located in the + Z-axis direction relative to the facing surface 235 and surrounds the outer periphery of the facing surface 235 when viewed from the Z-axis direction.
- the facing surface 233 is a plane that is located in the ⁇ Z-axis direction relative to the facing surface 234 and surrounds the outer periphery of the facing surface 234 when viewed from the Z-axis direction.
- the facing surface 232 is a plane that is located in the + Z-axis direction relative to the facing surface 233 and surrounds the outer periphery of the facing surface 233 when viewed from the Z-axis direction.
- the opposing surface 231 is a plane that is located in the ⁇ Z-axis direction relative to the opposing surface 232 and surrounds the outer periphery of the opposing surface 232 when viewed from the Z-axis direction.
- the positions of the opposing surfaces 231, 233 and 235 in the Z-axis direction are the same, and the positions of the opposing surfaces 232 and 234 in the Z-axis direction are the same.
- the top end surfaces 242 and 243 of the ceramic member 200 are surfaces parallel to the X axis and the Y axis and facing the + Z axis direction.
- the tip top surface 242 is connected to the tip surface 222, and the tip top surface 243 is connected to the tip surface 223.
- the tip upper surfaces 242 and 243 are provided on the + Z-axis direction side of the opposing surfaces 231 and 232.
- a tip step surface 248 is formed between the tip top surface 242 and the facing surface 231, and a tip step surface 249 is formed between the tip top surface 243 and the facing surface 231.
- the ⁇ Y axis direction side of the top end surfaces 242 and 243, the step difference surfaces 248 and 249, and the + Y axis direction side of the facing surface 231 are along the outer shape of the transported body 90. It is formed in a circular arc shape.
- the opposing surface 235 of the ceramic member 200 is formed with an adsorption hole 450 that is a hole configured to adsorb the conveyed object 90 by providing a negative pressure to the opposing surface 235. ing.
- the suction holes 450 are formed by cutting the ceramic layers 295, 296, and 297.
- the number of the suction holes 450 is 6, but in other embodiments, the number may be 5 or less, or 7 or more.
- a gas discharge hole 650 which is a hole configured to be able to discharge a processing gas, is formed on the facing surface 233 of the ceramic member 200.
- the gas release holes 650 are formed by cutting the ceramic layers 295, 296, and 297.
- the number of gas discharge holes 650 is 12, but in other embodiments, it may be 11 or less, or 13 or more.
- the ceramic member 200 includes power supply ports 312 and 316, a negative pressure supply port 412, power supply ports 512 and 516, and a gas supply port 612.
- the power supply ports 312 and 316 of the ceramic member 200 respectively receive supply of electric power having potentials with opposite polarities from the suction electrode driving unit 830.
- the power supply ports 312 and 316 are formed by brazing cylindrical conductive metal terminals protruding in the + Z-axis direction from the base end upper surface 215, and are cables connected to the suction electrode driving unit 830. These terminals (not shown) can be fixed.
- the negative pressure supply port 412 of the ceramic member 200 receives supply of negative pressure from the negative pressure supply unit 840.
- the negative pressure supply port 412 is formed by brazing a cylindrical conductive metal terminal protruding in the + Z-axis direction from the base end upper surface 215, and is a tube connected to the negative pressure supply unit 840. It is comprised so that fixing
- the power supply ports 512 and 516 of the ceramic member 200 accept supply of electric power from the electric heating element driving unit 850, and one corresponds to the positive electrode and the other corresponds to the negative electrode.
- the power supply ports 512 and 516 are formed by brazing a cylindrical conductive metal terminal protruding in the + Z-axis direction from the base end upper surface 215, and a cable connected to the electric heater driving unit 850. These terminals (not shown) can be fixed.
- the gas supply port 612 of the ceramic member 200 receives supply of processing gas from the processing gas supply unit 860.
- the gas supply port 612 is formed by brazing a cylindrical conductive metal terminal protruding in the + Z-axis direction from the base end upper surface 215, and is a tube connected to the process gas supply unit 860. An end (not shown) is configured to be fixable.
- adsorption electrodes 372, 374, 376, and 378 which are conductor patterns, are formed between the ceramic layer 296 and the ceramic layer 297.
- the adsorption electrodes 372, 374, 376, and 378 are formed by screen-printing a conductive paste containing a conductive material on the ceramic layer 296.
- the adsorption electrodes 372 and 374 are first electrodes configured to have a different polarity potential from the adsorption electrodes 376 and 378, and the adsorption electrodes 376 and 378 are different from the adsorption electrodes 372 and 374. It is the 2nd electrode comprised so that it might become a potential of polarity.
- FIG. 5 is an explanatory view showing the ceramic layer 296 viewed from the position corresponding to the arrow F5-F5 in FIG.
- FIG. 5 illustrates a ceramic layer 296 in which adsorption electrodes 372, 374, 376, and 378 are formed.
- the adsorption electrodes 372, 374, 376, and 378 are hatched for easy understanding of the drawing.
- the adsorption electrodes 372, 374, 376, and 378 are formed so as to avoid the adsorption holes 450 and the gas discharge holes 650.
- the adsorption electrode 372 overlaps along the outer side of the opposed surface 232 when viewed from the Z-axis direction, and the adsorption electrode 376 is opposed to the opposed surface when viewed from the Z-axis direction. It overlaps along the inner side of 232.
- Each of the adsorption electrode 372 and the adsorption electrode 376 is disposed so as to overlap with the opposing surface 232 substantially evenly when viewed from the Z-axis direction.
- the adsorption electrode 374 overlaps along the outer side of the opposed surface 234 when viewed from the Z-axis direction, and the adsorption electrode 378 is opposed to the opposed surface when viewed from the Z-axis direction. Overlapping along the inner side of 234. Each of the adsorption electrode 374 and the adsorption electrode 378 is disposed so as to substantially overlap the opposing surface 234 when viewed from the Z-axis direction.
- FIG. 6 is an explanatory view showing the ceramic layer 295 viewed from the position corresponding to the arrow F6-F6 in FIG.
- FIG. 7 is an explanatory view showing a cross section of the ceramic member 200 viewed from a position corresponding to the arrow F7-F7 in FIG.
- lands 332 and 336 that are conductor patterns are formed between the ceramic layer 295 and the ceramic layer 296.
- lands 332 and 336 are hatched for easy understanding of the drawing.
- the power supply ports 312 and 316 are indicated by alternate long and short dash lines at positions projected onto the ceramic layer 295 along the Z-axis direction.
- the lands 332 and 336 are indicated by broken lines.
- the lands 332 and 336 are formed by screen-printing a conductive paste containing a conductive material on the ceramic layer 295.
- the land 332 is a conductor configured to receive power through the power supply port 312.
- the land 332 is configured to be able to receive power through the power supply port 312 by being exposed to the inside of the cylindrical power supply port 312.
- the land 336 is a conductor configured to receive power through the power supply port 316.
- the land 336 is configured to be able to receive power through the power supply port 316 by being exposed to the inside of the cylindrical power supply port 316.
- vias 352 and 354 are formed in the ceramic layer 296, and similarly, vias 356 and 358 are formed in the ceramic layer 296.
- the vias 352, 354, 356, and 358 are shown by broken lines.
- the vias 352, 354, 356, and 358 are illustrated by alternate long and short dash lines at positions projected onto the ceramic layer 295 along the Z-axis direction.
- a through hole is formed in the ceramic layer 292, and a conductive paste containing a conductive material is filled in the through hole.
- vias 352, 354, 356, and 358 are formed.
- the via 352 is a conductor that penetrates the ceramic layer 296 and electrically connects the land 332 and the adsorption electrode 372.
- the via 354 is a conductor that penetrates the ceramic layer 296 and electrically connects the land 332 and the adsorption electrode 374.
- the via 356 is a conductor that penetrates the ceramic layer 296 and electrically connects the land 336 and the adsorption electrode 376.
- the via 358 is a conductor that penetrates the ceramic layer 296 and electrically connects the land 336 and the adsorption electrode 378.
- a negative pressure communication path 430 and a gas communication path 630 are formed in the ceramic layer 294.
- the negative pressure communication path 430 is a flow path that communicates between the negative pressure supply port 412 and the suction hole 450.
- the gas communication path 630 is a flow path that communicates between the gas supply port 612 and the gas discharge hole 650.
- the negative pressure communication path 430 and the gas communication path 630 are formed by cutting the ceramic layer 294.
- FIG. 8 is an explanatory diagram showing the ceramic layer 294 viewed from the position corresponding to the arrow F8-F8 in FIG.
- each of the negative pressure supply port 412, the suction hole 450, the gas supply port 612, and the gas discharge hole 650 is illustrated by a one-dot chain line at a position projected on the ceramic layer 294 along the Z-axis direction.
- the negative pressure communication path 430 advances from the position corresponding to the negative pressure supply port 412 to the inner surface 221, and then branches into two toward the front end surface 222 and the front end surface 223, and six adsorptions It passes through a position corresponding to the hole 450.
- the gas communication path 630 branches into two from the position corresponding to the gas supply port 612 toward the front end surface 222 and the front end surface 223, and then on the other hand, the outer side surface 224, the front end surface 222, and the inner side surface 226. And passes through positions corresponding to the six gas discharge holes 650 along the order of the outer surface 225, the front end surface 223, and the inner surface 227.
- electric heating elements 572, 574, and 576 which are conductor patterns, are formed.
- the electric heaters 572, 574, and 576 are formed by screen printing a conductive paste containing a conductive material on the ceramic layer 291.
- FIG. 9 is an explanatory diagram showing the ceramic layer 292 viewed from the position corresponding to the arrow F9-F9 in FIG.
- FIG. 10 is an explanatory diagram showing the ceramic layer 291 viewed from the position corresponding to the arrow F10-F10 in FIG.
- FIG. 11 is an explanatory view showing a cross section of the ceramic member 200 viewed from a position corresponding to the arrow F11-F11 in FIG.
- the electric heating elements 572, 574, and 576 are hatched for easy understanding of the drawing.
- the electric heating bodies 572 and 576 are first electric heating bodies arranged on the outer peripheral side of the ceramic layer 291, and the electric heating body 574 is located inside the electric heating bodies 572 and 576. It is the 2nd electric heating body arranged.
- the heating elements 572 and 576 are formed of a conductive material having a resistance value higher than that of the heating element 574 so that the heating value per unit area of the heating elements 572 and 576 is larger than that of the heating element 574. It is configured.
- the electric heating elements 572 and 576 may be configured so that the heating value per unit area of the electric heating elements 572 and 576 is larger than that of the electric heating element 574 by supplying a larger current to the electric heating elements 572 and 576. good.
- the heating elements 572, 574, and 576 may be configured to have the same heat generation amount per unit area.
- lands 532 and 536 which are conductor patterns, are formed between the ceramic layer 292 and the ceramic layer 293.
- lands 532 and 536 are hatched for easy understanding of the drawing.
- the power supply ports 512 and 516 are illustrated by dashed lines at positions projected onto the ceramic layer 292 along the Z-axis direction.
- the lands 532 and 536 are illustrated by dashed lines at positions projected onto the ceramic layer 291 along the Z-axis direction.
- a conductive paste containing a conductive material is screen-printed on the ceramic layer 292 to form lands 532 and 536.
- the land 532 is a conductor configured to be able to receive power through the power supply port 512.
- the land 532 is configured to be able to receive power through the power supply port 512 by being exposed to the inside of the cylindrical power supply port 512.
- the land 536 is a conductor configured to receive power through the power supply port 516.
- the land 536 is configured to be able to receive power through the power supply port 516 by being exposed to the inside of the cylindrical power supply port 516.
- vias 552, 553, 554 and vias 556, 557, 558 are formed in the ceramic layer 292.
- vias 552, 553, 554 and vias 556, 557, 558 are illustrated by broken lines.
- the power supply ports 512, 516, lands 532, 536, vias 552, 553, 554, and vias 556, 557, 558 are set at positions projected onto the ceramic layer 291 along the Z-axis direction. This is illustrated with a chain line.
- the via 552 is a conductor that penetrates the ceramic layer 292 and electrically connects the end of the electric heating element 572 on the + X axis direction side and the land 532.
- the via 553 is a conductor that penetrates the ceramic layer 292 and electrically connects the end portion on the + X-axis direction side of the electric heating element 574 and the land 532.
- the via 554 is a conductor that penetrates the ceramic layer 292 and electrically connects the end of the electric heating element 576 on the + X-axis direction side and the land 532.
- the via 556 is a conductor that penetrates the ceramic layer 292 and electrically connects the end of the electric heating element 572 on the ⁇ X-axis direction side and the land 536.
- the via 557 is a conductor that penetrates the ceramic layer 292 and electrically connects the end of the electric heating element 574 on the ⁇ X-axis direction side and the land 536.
- the via 558 is a conductor that penetrates the ceramic layer 292 and electrically connects the end of the electric heating element 576 on the ⁇ X-axis direction side and the land 536.
- FIG. 20 is an explanatory view showing a manufacturing process of the ceramic member 200.
- a green sheet as a base of the ceramic layers 291 to 297 is prepared (process P110).
- the green sheet is formed by mixing an insulating ceramic material powder with an organic binder, a plasticizer, a solvent, and the like into a sheet shape.
- the green sheet is processed according to the configuration of each of the ceramic layers 291 to 297 (process P120). Specifically, after cutting each green sheet into a square, a guide hole suitable for alignment in a subsequent process (such as screen printing, cutting, and thermocompression bonding) is punched near the outer periphery of each green sheet. If necessary, conductive paste is screen-printed on the surface of the green sheet in accordance with the shapes of the adsorption electrodes 372, 374, 376, 378, lands 332, 336, electric heating elements 572, 574, 576, and lands 532, 536. .
- via holes which are through holes are punched at positions where vias 352, 354, 356, 358 and vias 552, 553, 554, 556, 557, 558 are formed, and a conductor paste is formed in the via holes.
- the hole is printed.
- the through hole 218, the negative pressure communication path 430, the suction hole 450, the gas communication path 630, the gas discharge hole 650, and the like are cut into a green sheet as necessary.
- a plurality of green sheets corresponding to each of the ceramic layers 291 to 297 are laminated, and the adjacent ceramic layers are joined by thermocompression bonding. (Process P125). Thereby, a green sheet laminate in which a plurality of green sheets is laminated is formed.
- the green sheet laminate is cut into an outer shape suitable for firing in the subsequent process (process P130).
- the green sheet laminate is degreased (process P140). Specifically, the green sheet laminate is degreased by exposing it to an air atmosphere at 250 ° C. for 10 hours.
- the green sheet laminate After degreasing the green sheet laminate (process P140), the green sheet laminate is integrally fired. Specifically, the green sheet laminate is fired in a reducing atmosphere at 1400 to 1600 ° C. (step P150). As a result, alumina derived from the green sheet and tungsten derived from the conductive paste are simultaneously sintered to obtain a fired body in which the internal structure of the ceramic member 200 is formed.
- the fired body obtained by firing is formed into a ceramic member 200 (process P160). Specifically, the outer shape of the fired body is polished and cut according to the ceramic member 200.
- the opposing surfaces 231, 233, and 235 are formed by polishing cutting in the present embodiment, but may be formed by blasting in other embodiments.
- the adsorption electrodes 372, 374, 376, and 378 are formed on the ceramic layer 297 that is the first ceramic layer to secure the adsorption force by electrostatic force, and then the second ceramic layer.
- the vias 552, 553, 554, and 556 via the lands 532 and 536 formed on the ceramic layer 292 that is the third ceramic layer with respect to the electric heating elements 572, 574, and 576 formed on the ceramic layer 291 , 557, 558 to supply power.
- the degree of freedom of the arrangement and shape of the electric heating elements 572, 574, and 576 on the ceramic layer 291 can be improved.
- the temperature adjustment by the electric heaters 572, 574, and 576 can be effectively performed without hindering the adsorption force due to the electrostatic force, and as a result, the conveyance performance of the conveyance device 10 can be improved.
- the electric heating elements 572, 574, and 576 are disposed closer to the bottom surface 216 than the opposing surfaces 231, 232, 233, 234, and 235, temperature unevenness on the opposing surfaces 231, 232, 233, 234, and 235 is suppressed, and the electric heating elements Temperature adjustment by 572,574,576 can be performed more effectively.
- the outer heating elements 572 and 576 that are the first electric heaters are configured to generate a larger amount of heat per unit area than the inner heating elements 574 that are the second electric heaters, the outer periphery of the ceramic member 200 Temperature unevenness between the side and the inside can be suppressed, and temperature adjustment by the electric heating elements 572, 574, and 576 can be performed more effectively.
- the adsorption electrodes 372, 374, 376, and 378 are formed on the ceramic layer 296, and the lands 332 and 336 that are configured to receive power through the power supply ports 312 and 316 are formed on the ceramic layer 295. Vias 352, 354, 356, and 358 that penetrate the ceramic layer 296 and electrically connect the adsorption electrodes 372, 374, 376, and 378 and the lands 332 and 336 were formed.
- the suction electrodes 372, 374, 376, and 378 formed on the ceramic layer 296 are connected to the vias 352, 354, and 356 via the lands 332 and 336 formed on the ceramic layer 295.
- the degree of freedom in the arrangement and shape of the adsorption electrodes 372, 374, 376, and 378 on the ceramic layer 296 can be improved.
- the attracting electrodes 372, 374, 376, and 378 are arranged on the side (that is, the + Z axis direction side) that holds the transported body 90 relative to the lands 332 and 336, the side that holds the transported body 90 (that is, the opposite side) More charges are generated on the surfaces 231, 232, 233, 234, and 235 side, and the attractive force due to the electrostatic force can be further improved.
- the opposing surfaces 232 and 234 that are the second opposing surfaces are positioned closer to the transported body 90 (that is, the + Z-axis direction side) than the opposing surfaces 231, 233, and 235 that are the first opposing surfaces, and Z Since the attracting electrodes 372, 374, 376, and 378 are arranged so that at least a part of the attracting electrodes 372, 374, 376, and 378 overlap with the facing surfaces 232 and 234 when viewed from the axial direction, the facing surface that is closer to the conveyed object 90 232 and 234 can generate a lot of electric charges and can further improve the attractive force due to electrostatic force.
- the adsorption electrodes 372 and 374 that are the first electrodes and the adsorption electrodes 376 and 378 that are the second electrodes are configured to have different polar potentials, and the adsorption electrodes 372 and 374 and the adsorption electrodes 376 and 376 are arranged. Since each of 378 is disposed so as to substantially overlap the opposing surfaces 232 and 234 when viewed from the Z-axis direction, the balance between the positive charge and the negative charge generated in the ceramic member 200 and the transported body 90 is maintained. be able to.
- the facing surface 234 surrounds the facing surface 235 in which the suction hole 450 is formed as viewed from the Z-axis direction, the suction force due to the negative pressure is exerted on the transported body 90 over the facing surface 235 surrounded by the facing surface 234. Can affect.
- the gas communication passage 630 communicating with the gas supply port 612 is formed in the ceramic layer 294, and the gas discharge hole 650 penetrating from the gas communication passage 630 to the facing surface 233 is formed.
- the heat transfer gas (processing gas) is discharged from the gas discharge hole 650 to the facing surface 233, and between the transported body 90 and the ceramic member 200 (in particular, the transported body 90 and By interposing a heat transfer gas in the gap between the opposing surfaces 232 and 234, heat transfer from the ceramic member 200 to the conveyed object 90 can be promoted. Therefore, temperature adjustment of the to-be-conveyed body 90 can be performed effectively while realizing an adsorption function using electrostatic force. As a result, the time required for adjusting the temperature of the transported object 90 can be shortened, and as a result, the transport performance of the transport device 10 can be improved.
- Second embodiment In the description of the second embodiment, the same reference numerals as those in the first embodiment are used for the same configurations as in the first embodiment, and the configurations corresponding to the first embodiment are different from those in the first embodiment, although the shapes and arrangements are different. A code with an English letter “A” is used.
- FIG. 12A is an explanatory view showing the upper surface of the ceramic member 200A in the second embodiment.
- FIG. 12B is an explanatory diagram illustrating a partial cross section of a ceramic member 200A according to the second embodiment.
- the ceramic member 200A of the second embodiment is the same as the ceramic member 200 of the first embodiment except that a gas discharge hole 650A is formed in the base end step surface 219A.
- the base end step surface 219A of the second embodiment is a surface formed between the base end upper surface 215 and the facing surface 231 and corresponds to the base end step surface 219 of the first embodiment.
- the gas discharge hole 650A of the second embodiment is a hole that is configured to communicate with the gas communication path 630A and discharge the processing gas.
- the gas discharge hole 650A passes through the ceramic layers 295A and 296A from the gas communication path 630A along the Z-axis direction, and then extends from the inside of the ceramic layer 297A along the layer surface direction. It penetrates to the base end step surface 219A.
- the gas discharge hole 650A penetrates the base end step surface 219A in the direction along the outer periphery of the facing surface 231.
- the gas discharge hole 650A may penetrate the base end step surface 219A in a direction orthogonal to the outer periphery of the facing surface 231.
- the gas release holes 650A are formed by cutting the ceramic layers 295A, 296A, and 297A.
- the number of gas discharge holes 650A is four, but in other embodiments, it may be three or less, or may be five or more.
- the temperature adjustment by the electric heaters 572, 574, and 576 can be effectively performed without hindering the adsorption force due to the electrostatic force.
- the gas discharge hole 650A is formed in the base end step surface 219A, the temperature of the transported object 90 can be adjusted more effectively by discharging the processing gas from the base end step surface 219A in addition to the facing surface 233. Can do.
- the gas discharge hole 650A passes through the base end step surface 219A in the direction along the outer periphery of the facing surface 231, the processing gas is discharged along the outer periphery of the transferred object 90, thereby The temperature can be adjusted more effectively.
- the gas discharge hole 650A is disposed on the base end surface 211 side with respect to the facing surface 231, the temperature adjustment for the portion of the transported body 90 located on the base end surface 211 side can be performed more effectively.
- FIG. 13A is an explanatory view showing the upper surface of the ceramic member 200B in the third embodiment.
- FIG. 13B is an explanatory diagram illustrating a partial cross section of a ceramic member 200B according to the third embodiment.
- the ceramic member 200B of the third embodiment is the same as the ceramic member 200 of the first embodiment except that the gas discharge holes 650B are formed in the tip step surfaces 248B and 249B.
- the tip step surface 248B of the third embodiment is a surface formed between the tip top surface 242 and the facing surface 231 and corresponds to the tip step surface 248 of the first embodiment.
- the tip step surface 249B of the third embodiment is a surface formed between the tip top surface 243 and the facing surface 231 and corresponds to the tip step surface 249 of the first embodiment.
- the gas discharge hole 650B of the third embodiment is a hole that is configured to communicate with the gas communication path 630B and discharge the processing gas.
- the gas discharge hole 650B passes through the ceramic layers 295B and 296B from the gas communication path 630B along the Z-axis direction, and then extends from the inside of the ceramic layer 297B along the layer surface direction. It penetrates to the tip step surfaces 248B and 249B.
- the gas discharge hole 650B penetrates through the front end step surfaces 248B and 249B in the direction along the outer periphery of the facing surface 231.
- the gas discharge hole 650B may penetrate the tip step surfaces 248B and 249B in a direction orthogonal to the outer periphery of the facing surface 231.
- the gas release holes 650B are formed by cutting the ceramic layers 295B, 296B, and 297B.
- the number of gas discharge holes 650B is two on each of the tip step surfaces 248B and 249B, but in other embodiments, one may be provided on each of the tip step surfaces 248B and 249B. There may be three or more of each.
- the temperature adjustment by the electric heaters 572, 574, and 576 can be effectively performed without hindering the adsorptive power due to the electrostatic force.
- the gas discharge holes 650B are formed in the front end step surfaces 248B and 249B, the process gas is discharged from the front end step surfaces 248B and 249B in addition to the facing surface 233, so that the temperature adjustment of the transported body 90 is more effectively performed. It can be carried out. Further, since the gas discharge hole 650B penetrates the tip step surfaces 248B and 249B in the direction along the outer periphery of the facing surface 231, the processing object 90 is discharged by discharging the processing gas along the outer periphery of the transported body 90.
- the temperature can be adjusted more effectively.
- the gas discharge hole 650B is disposed on the front end surfaces 222 and 223 side with respect to the facing surface 231, the temperature of the portion of the transported body 90 located on the front end surfaces 222 and 223 side can be more effectively adjusted.
- FIG. 14 is an explanatory view showing a cross section of the ceramic member 200C in the fourth embodiment.
- FIG. 14 shows a cross section of the ceramic member 200C viewed from the position corresponding to the arrow F4-F4 in FIG.
- the ceramic member 200C of the fourth embodiment is the same as the ceramic member 200 of the first embodiment, except that the gas discharge holes 650C are formed on the outer side surfaces 224C and 225C and the inner side surfaces 226C and 227C.
- the outer surface 224C of the fourth embodiment is a surface formed between the distal end surface 222 and the proximal end side surface 213, and corresponds to the outer surface 224 of the first embodiment.
- the outer surface 225C of the fourth embodiment is a surface formed between the distal end surface 223 and the proximal end side surface 214, and corresponds to the outer surface 225 of the first embodiment.
- the inner side surface 226C of the fourth embodiment is a surface formed between the front end surface 222 and the inner side surface 221, and corresponds to the inner side surface 226 of the first embodiment.
- the inner surface 227C of the fourth embodiment is a surface formed between the front end surface 223 and the inner surface 221 and corresponds to the inner surface 227 of the first embodiment.
- the gas discharge hole 650C of the fourth embodiment is a hole that is configured to communicate with the gas communication path 630C and to discharge the processing gas.
- the gas discharge hole 650C penetrates from the gas communication path 630C to the outer side surfaces 224C and 225C and the inner side surfaces 226C and 227C along the layer surface direction.
- the gas discharge holes 650C penetrate the outer surfaces 224C and 225C and the inner surfaces 226C and 227C, respectively, in directions orthogonal to the outer surfaces 224C and 225C and the inner surfaces 226C and 227C, respectively.
- the gas discharge hole 650C may penetrate the outer side surfaces 224C and 225C and the inner side surfaces 226C and 227C in the direction along the outer shape of the transported body 90, respectively.
- the gas discharge hole 650C is formed by cutting the ceramic layer 294C before the ceramic member 200C is integrally fired.
- the number of gas discharge holes 650C is plural on each of the outer side surfaces 224C and 225C and the inner side surfaces 226C and 227C. However, in the other embodiments, the number may be one.
- the temperature adjustment by the electric heating elements 572, 574, and 576 can be effectively performed without hindering the adsorption force due to the electrostatic force. Further, since the gas discharge holes 650C are formed in the outer surfaces 224C and 225C and the inner surfaces 226C and 227C, the processing gas is discharged from the outer surfaces 224C and 225C and the inner surfaces 226C and 227C in addition to the facing surface 233, thereby being transported. The temperature of the body 90 can be adjusted more effectively.
- the gas discharge holes 650C are arranged on the outer side surfaces 224C and 225C and the inner side surfaces 226C and 227C, the temperature of the parts of the transported body 90 located near the outer side surfaces 224C and 225C and the inner side surfaces 226C and 227C is further adjusted. Can be done effectively.
- the gas discharge holes 650C are formed on the outer surfaces 224C and 225C and the inner surfaces 226C and 227C. However, in other embodiments, the gas discharge holes 650C are formed only on the outer surfaces 224C and 225C. Alternatively, the gas discharge hole 650C may be formed only on the inner side surfaces 226C and 227C. In the fourth embodiment, the gas discharge hole 650C is not formed in the inner side surface 221, but in other embodiments, the gas discharge hole 650C may be formed in the inner side surface 221.
- E. Fifth embodiment In the description of the fifth embodiment, the same reference numerals as in the first embodiment are used for the same configurations as in the first embodiment, and the configurations corresponding to the first embodiment are different from those in the first embodiment, although the shapes and arrangements are different. A code with an English letter “D” is used.
- FIG. 15 is an explanatory view showing the upper surface of the ceramic member 200D in the fifth embodiment.
- FIG. 16 is an explanatory view showing a cross section of the ceramic member 200D as seen from the arrow F16-F16 in FIG.
- the ceramic member 200D of the fifth embodiment has a facing surface 231D formed in place of the facing surfaces 231, 232, 233 and the top end surfaces 242, 243, and the processing gas supplied from the processing gas supply unit 860 is transported. Except for the point that it is a cooling gas for cooling the body 90, it is the same as the ceramic member 200 of the first embodiment.
- the facing surface 231D of the fifth embodiment has a shape obtained by cutting the facing surface 232 and the tip upper surfaces 242 and 243 in the first embodiment to the positions of the facing surfaces 231 and 233, and the facing surface 231 of the first embodiment.
- the surface corresponding to 233 is included.
- the facing surface 231D is located in the ⁇ Z-axis direction with respect to the facing surface 234, and surrounds the outer periphery of the facing surface 234.
- the facing surface 231D is connected to each of the base end step surface 219, the tip end surfaces 222, 223, the outer side surfaces 224, 225, and the inner side surfaces 221, 226, 227.
- gas discharge holes 650 are formed in the same arrangement as in the first embodiment.
- the processing gas supply unit 860 of the fifth embodiment supplies a sufficiently cooled processing gas to the ceramic member 200D as a cooling gas.
- the cooling gas supplied from the processing gas supply unit 860 may be a gas that does not damage and contaminate the transported body 90.
- the cooling gas is nitrogen (N2), but in other embodiments, other inert gases such as argon (Ar) and carbon dioxide (CO2) may be used.
- the temperature adjustment by the electric heaters 572, 574, and 576 can be effectively performed without hindering the adsorptive power due to the electrostatic force.
- the to-be-conveyed body 90 can be cooled by discharging
- the gas discharge hole 650A of the second embodiment, the gas discharge hole 650B of the third embodiment, and the gas discharge hole 650C of the fourth embodiment may be applied to the ceramic member 200D of the fifth embodiment. good. As a result, the temperature of the transported body 90 can be adjusted more effectively.
- FIG. 17 is an explanatory view showing the upper surface of the ceramic member 200E in the sixth embodiment.
- FIG. 18 is an explanatory view showing a cross section of the ceramic member 200E viewed from the arrow F18-F18 in FIG.
- the ceramic member 200E of the sixth embodiment is provided with a configuration for releasing the processing gas, in that opposed surfaces 231E, 235E are formed instead of the opposed surfaces 231, 233, 234, 235 and the tip upper surfaces 242, 243. Except for this point, it is the same as the ceramic member 200 of the first embodiment.
- the facing surface 231E of the sixth embodiment has a shape obtained by cutting the top end surfaces 242 and 243 of the first embodiment to the position of the facing surface 231, and includes a surface corresponding to the facing surface 231 of the first embodiment.
- the facing surface 231E is located in the ⁇ Z-axis direction with respect to the facing surface 232, and surrounds the outer periphery of the facing surface 232.
- the facing surface 231E is connected to each of the base end step surface 219, the tip end surfaces 222 and 223, the outer side surfaces 224 and 225, and the inner side surfaces 221, 226, and 227.
- the opposed surface 235E of the sixth embodiment has a shape obtained by cutting the opposed surface 234 of the first embodiment to the position of the opposed surface 235, and includes surfaces corresponding to the opposed surfaces 233, 235 of the first embodiment.
- the facing surface 235E is located in the ⁇ Z-axis direction with respect to the facing surface 232, and the outer periphery of the facing surface 235E is surrounded by the facing surface 232.
- the suction holes 450 are formed in the same arrangement as in the first embodiment.
- the temperature adjustment by the electric heating elements 572, 574, and 576 can be effectively performed without hindering the adsorption force due to the electrostatic force.
- FIG. 23 is an explanatory view showing a cross section of the ceramic member 200G in the seventh embodiment.
- the upper surface of the ceramic member 200G in the seventh embodiment is the same as the ceramic member 200E of the sixth embodiment shown in FIG.
- FIG. 23 shows a cross section of the ceramic member 200G viewed from the position corresponding to the arrow F18-F18 in FIG.
- the ceramic member 200G of the seventh embodiment is the same as that of the sixth embodiment except that the electric heating elements 572G and 576G are formed on the + Z-axis direction side of the negative pressure communication path 430G.
- a negative pressure communication path 430G is formed in the ceramic layer 292G, and electric heating elements 572G and 576G are formed between the ceramic layer 292G and the ceramic layer 293G.
- the temperature adjustment by the electric heating elements 572G and 576G can be effectively performed without hindering the adsorption force due to the electrostatic force. Further, it is possible to avoid heat insulation between the electric heating bodies 572G and 576G and the transported body 90 by the negative pressure communication path 430G, and it is possible to more effectively perform temperature adjustment by the electric heating bodies 572G and 576G.
- the overall shape of the ceramic member is not limited to a substantially U-shaped plate shape, and may be various shapes such as a circle, a triangle, a quadrangle, and a polygon.
- the shape, arrangement, number, and the like of each of the facing surface, the adsorption electrode, the negative pressure communication path, the adsorption hole, the electric heating element, the land, the via, the gas communication path, and the gas discharge hole are limited to the above-described embodiment. It may be changed as appropriate according to the embodiment.
- the transport apparatus 10 is an apparatus that constitutes a part of a liquid crystal substrate manufacturing apparatus that manufactures a liquid crystal substrate using a glass substrate, and the transported body 90 may be the glass substrate.
- the conveying apparatus 10 is an apparatus which comprises a part of plasma substrate manufacturing apparatus which manufactures a plasma substrate using a glass substrate, and the to-be-conveyed body 90 is good also as the glass substrate.
- the conveying apparatus 10 is an apparatus which comprises a part of solar cell manufacturing apparatus which manufactures a solar cell substrate using an amorphous silicon wafer, and the to-be-conveyed body 90 is good also as the amorphous silicon wafer.
- electric heating element 576 ... electric heating element 612 ... gas supply port 630, 630A, 630B, 630C ... gas communication path 650, 650A, 650B, 650C ... gas release Hole 710 ... Arm mechanism 720 ... Movement mechanism 830 ...
- Adsorption electrode drive part 840 ... Negative pressure supply part 850 ... Electric heating element drive part 860 ... Process gas supply part
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Abstract
Description
図1は、搬送装置10の構成を示す説明図である。搬送装置10は、被搬送体90を搬送する。本実施形態では、搬送装置10は、半導体製造装置の一部を構成する装置であり、被搬送体90は、円板状の誘電体であるシリコン製のウェハである。
第2実施形態の説明では、第1実施形態と同様の構成については第1実施形態と同じ符号を用い、形状や配置などが異なるものの第1実施形態に対応する構成については第1実施形態の符号に英文字「A」を付した符号を用いる。
第3実施形態の説明では、第1実施形態と同様の構成については第1実施形態と同じ符号を用い、形状や配置などが異なるものの第1実施形態に対応する構成については第1実施形態の符号に英文字「B」を付した符号を用いる。
第4実施形態の説明では、第1実施形態と同様の構成については第1実施形態と同じ符号を用い、形状や配置などが異なるものの第1実施形態に対応する構成については第1実施形態の符号に英文字「C」を付した符号を用いる。
第5実施形態の説明では、第1実施形態と同様の構成については第1実施形態と同じ符号を用い、形状や配置などが異なるものの第1実施形態に対応する構成については第1実施形態の符号に英文字「D」を付した符号を用いる。
第6実施形態の説明では、第1実施形態と同様の構成については第1実施形態と同じ符号を用い、形状や配置などが異なるものの第1実施形態に対応する構成については第1実施形態の符号に英文字「E」を付した符号を用いる。
第7実施形態の説明では、第1実施形態と同様の構成については第1実施形態と同じ符号を用い、形状や配置などが異なるものの第1実施形態に対応する構成については第1実施形態の符号に英文字「G」を付した符号を用いる。
以上、本発明の実施形態について説明したが、本発明はこうした実施形態に何ら限定されるものではなく、本発明の趣旨を逸脱しない範囲内において様々な形態で実施し得ることは勿論である。
90…被搬送体
100…制御部
200,200A~200E,200G…セラミック部材
211…基端面
213…基端側面
214…基端側面
215…基端上面
216…底面
218…貫通孔
219,219A…基端段差面
221…内側面
222…先端面
223…先端面
224,224C…外側面
225,225C…外側面
226,226C…内側面
227,227C…内側面
231,231D,231E…対向面
232…対向面
233…対向面
234…対向面
235,235E…対向面
242…先端上面
243…先端上面
248,248B…先端段差面
249,249B…先端段差面
291~297…セラミック層
312…給電口
316…給電口
332,336…ランド
352,354,356,358…ビア
372,374,376,378…吸着電極
412…負圧供給口
430,430G…負圧連通路
450…吸着孔
512…給電口
516…給電口
532,536…ランド
552,553,554,556,557,558…ビア
572,572G…電熱体
574…電熱体
576…電熱体
612…ガス供給口
630,630A,630B,630C…ガス連通路
650,650A,650B,650C…ガス放出孔
710…アーム機構
720…移動機構
830…吸着電極駆動部
840…負圧供給部
850…電熱体駆動部
860…処理ガス供給部
Claims (5)
- 搬送装置において被搬送体を保持した状態で前記被搬送体と共に移動可能に構成されたセラミック部材であって、
絶縁性を有し、一体焼成された複数のセラミック層と、
前記複数のセラミック層の内部であって前記複数のセラミック層のうちの第1のセラミック層上に形成され、静電力によって誘電体を吸着可能に構成された電極である吸着電極と、
前記複数のセラミック層のうち前記被搬送体を保持する側から前記第1のセラミック層よりも離れた第2のセラミック層上に形成され、電力に基づいて発熱する電熱体と、
前記セラミック部材の外部から前記電熱体に対する電力の供給を受け付ける給電口と、
前記複数のセラミック層のうち前記第1のセラミック層および前記第2のセラミック層とは異なる第3のセラミック層上に形成され、前記給電口を通じて受電可能に構成された導体であるランドと、
前記複数のセラミック層の少なくとも1つを貫通して前記電熱体と前記ランドとの間を電気的に接続する導体であるビアと
を備えるセラミック部材。 - 請求項1に記載のセラミック部材であって、さらに、
前記複数のセラミック層の層面方向に沿った面であって前記被搬送体を保持した状態で前記被搬送体に対向する面である対向面と、
前記層面方向に沿った面であって前記対向面とは反対側に位置する面である底面と
を備え、
前記電熱体は、前記対向面よりも前記底面寄りに位置する、セラミック部材。 - 請求項1または請求項2に記載のセラミック部材であって、
前記複数のセラミック層の内部に形成され、前記複数のセラミック層の層面方向に沿った通路であって、負圧を供給可能に構成された負圧連通路を、さらに備え、
前記電熱体は、前記負圧連通路よりも前記被搬送体を保持する側に位置する、セラミック部材。 - 請求項1から請求項3までのいずれか一項に記載のセラミック部材であって、
前記電熱体は、
前記第2のセラミック層の外周側に配置された第1電熱体と、
前記第1電熱体よりも内側に配置された第2電熱体と
を含み、
前記第1電熱体の単位面積あたりの発熱量は、前記第2電熱体の単位面積あたりの発熱量よりも大きい、セラミック部材。 - 請求項1から請求項4までのいずれか一項に記載のセラミック部材を用いて前記被搬送体を搬送する搬送装置。
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KR1020147024762A KR101757522B1 (ko) | 2012-03-07 | 2013-02-28 | 반송 장치 및 세라믹 부재 |
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JP2003142564A (ja) * | 2001-11-08 | 2003-05-16 | Ngk Insulators Ltd | 支持装置 |
JP2005197391A (ja) * | 2004-01-06 | 2005-07-21 | Ibiden Co Ltd | プラズマ発生装置用電極埋設部材 |
JP2007053405A (ja) * | 2006-11-06 | 2007-03-01 | Canon Inc | 基板吸着装置 |
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JP2011082405A (ja) * | 2009-10-09 | 2011-04-21 | Ngk Spark Plug Co Ltd | 半導体製造装置用部品 |
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KR101757522B1 (ko) | 2017-07-12 |
US20150016010A1 (en) | 2015-01-15 |
KR20140142239A (ko) | 2014-12-11 |
JP6106659B2 (ja) | 2017-04-05 |
TW201348105A (zh) | 2013-12-01 |
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