WO2022196063A1 - 基板処理装置、半導体装置の製造方法及びプログラム - Google Patents
基板処理装置、半導体装置の製造方法及びプログラム Download PDFInfo
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- WO2022196063A1 WO2022196063A1 PCT/JP2022/001193 JP2022001193W WO2022196063A1 WO 2022196063 A1 WO2022196063 A1 WO 2022196063A1 JP 2022001193 W JP2022001193 W JP 2022001193W WO 2022196063 A1 WO2022196063 A1 WO 2022196063A1
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- substrate
- temperature
- lock chamber
- temperature sensor
- support
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Images
Classifications
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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
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/67201—Apparatus for manufacturing or treating in a plurality of work-stations characterized by the construction of the load-lock chamber
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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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
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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
- H01L21/67017—Apparatus for fluid treatment
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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
- H01L21/67109—Apparatus for thermal treatment mainly by convection
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- 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
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67248—Temperature monitoring
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- H01—ELECTRIC ELEMENTS
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- 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
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- 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
- H01L21/687—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 mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68742—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a lifting arrangement, e.g. lift pins
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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
- H01L21/687—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 mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68764—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a movable susceptor, stage or support, others than those only rotating on their own vertical axis, e.g. susceptors on a rotating caroussel
Definitions
- the present disclosure relates to a substrate processing apparatus, a semiconductor device manufacturing method, and a program.
- a substrate processing apparatus having a load lock chamber into which substrates are loaded and unloaded has been conventionally known.
- a load-lock chamber of a substrate processing apparatus has a function of switching the atmosphere in the chamber between an atmospheric state and a vacuum state (see, for example, Japanese Unexamined Patent Application Publication No. 2012-99711).
- the substrate carried into the load-lock chamber may be carried out from the load-lock chamber to the atmosphere without being cooled to a desired temperature.
- the purpose of the present disclosure is to provide a technology that can grasp the substrate temperature in the load lock chamber.
- a load-lock chamber into which substrates are loaded and unloaded, a support provided in the load-lock chamber for supporting a plurality of substrates in multiple stages at predetermined intervals, and a support for the substrates. and a temperature sensor that can measure the temperature of the support in a non-contact state.
- FIG. 1 is a schematic configuration diagram of a substrate processing apparatus according to an embodiment of the present disclosure
- FIG. 1 is a schematic longitudinal sectional view of a substrate processing apparatus according to an embodiment of the present disclosure
- FIG. 1 is a schematic vertical cross-sectional view of a load lock chamber of a substrate processing apparatus according to an embodiment of the present disclosure
- FIG. FIG. 1 is a schematic configuration diagram of a substrate processing apparatus according to an embodiment of the present disclosure
- FIG. 1 is a schematic longitudinal sectional view of a substrate processing apparatus according to an embodiment of the present disclosure
- FIG. 1 is a schematic vertical cross-sectional view of a load lock chamber of a substrate processing apparatus according to an embodiment of the present disclosure
- 4 is a schematic perspective view showing a state in which the boat temperature is being measured by a temperature sensor in the substrate processing apparatus according to the embodiment of the present disclosure; 4 is a flowchart showing a flow for determining whether or not a substrate can be unloaded from the load lock chamber to the atmospheric transfer chamber in the substrate processing apparatus according to the embodiment of the present disclosure; It is a figure which shows the structure of the control part of the substrate processing apparatus which concerns on one Embodiment of this indication.
- FIG. 1 An embodiment of the present disclosure will be described below with reference to FIGS. 1 to 6.
- FIG. 1 The drawings used in the following description are all schematic, and the dimensional relationship of each element, the ratio of each element, etc. shown in the drawings do not necessarily match the actual ones. Moreover, the dimensional relationship of each element, the ratio of each element, etc. do not necessarily match between a plurality of drawings.
- the substrate processing apparatus 10 includes an atmospheric transfer chamber (EFEM: Equipment Front End Module) 12 and a pod, which is a substrate storage container, connected to the atmospheric transfer chamber 12.
- EFEM Equipment Front End Module
- a pod which is a substrate storage container, connected to the atmospheric transfer chamber 12.
- Load ports 29-1 to 29-3 as mounting units for mounting 27-1 to 27-3
- load lock chambers 14A and 14B as pressure-controlled preliminary chambers
- transfer chambers as vacuum transfer chambers.
- a boundary wall 20 separates the processing chamber 18A and the processing chamber 18B.
- a semiconductor wafer such as a silicon wafer for manufacturing a semiconductor device is used as the substrate 100 .
- load lock chamber 14 In the present embodiment, the configurations of the load lock chambers 14A and 14B (including configurations associated with the load lock chambers 14A and 14B) are the same. Therefore, the load lock chambers 14A and 14B may be collectively referred to as "load lock chamber 14".
- each configuration of the processing chambers 18A and 18B (including configurations associated with the processing chambers 18A and 18B) has the same configuration. Therefore, the load lock chambers 14A and 14B may be collectively referred to as "load lock chamber 14".
- a communicating portion 22 is formed to communicate the adjacent chambers. This communicating portion 22 is opened and closed by a gate valve 24 .
- a communicating portion 26 is formed to communicate the adjacent chambers. This communicating portion 26 is opened and closed by a gate valve 28 .
- atmosphere transfer chamber 12 In the atmosphere transfer chamber 12, between the pods 27-1 to 27-3 placed on the load ports 29-1 to 29-3, respectively, and the load lock chamber 14, an atmosphere-side transfer device for transferring the substrate 100 is provided.
- atmosphere robot 30 is provided. This atmospheric robot 30 is configured to be able to transport a plurality of substrates 100 simultaneously in the atmosphere.
- the substrate 100 is transported to and unloaded from the load lock chamber 14 .
- the unprocessed substrate 100 is loaded into the load lock chamber 14 by the atmospheric robot 30 , and the loaded unprocessed substrate 100 is unloaded by the vacuum robot 70 .
- the vacuum robot 70 loads the processed substrate 100 into the load lock chamber 14 , and the atmosphere robot 30 unloads the loaded processed substrate 100 .
- a boat 32 as a support for supporting the substrate 100 is provided in the load lock chamber 14 .
- the boat 32 supports a plurality of (eg, 10 to 30) substrates 100 at predetermined intervals in multiple stages and accommodates the substrates 100 horizontally.
- the boat 32 has a structure in which an upper plate portion 34 and a lower plate portion 36 are connected by a plurality of (for example, three) strut portions 38 .
- a plurality of (for example, 10 to 30) support grooves 40 for supporting the substrate 100 are formed parallel to each other at predetermined intervals on the inner side of the column portion 38 in the longitudinal direction.
- a vertical surface 39 is formed on the outer surface (the surface opposite to the support groove 40 side) of one of the plurality of pillars 38 .
- the vertical surface 39 extends in a direction perpendicular to the plate surface of the substrate 100 (the same direction as the vertical direction in this embodiment) while the substrate 100 is supported by the boat 32 .
- the thickness of the column portion 38 is constant at the portion where the vertical surface 39 is formed.
- the boat 32 is made of a metal material, preferably a metal material with excellent thermal conductivity (for example, iron, copper, aluminum).
- the boat 32 is made of aluminum, it is preferable to subject the vertical surface 39 to alumite treatment from the viewpoint of temperature measurement using the temperature sensor 110, which will be described later.
- a gas supply pipe 42 that communicates with the inside of the load lock chamber 14 is connected to the top plate portion 15A that constitutes the load lock chamber 14 .
- the gas supply pipe 42 is provided with a gas supply source (not shown) and a gas supply valve 43 for sequentially supplying an inert gas (for example, nitrogen gas or rare gas) from the upstream side.
- an inert gas for example, nitrogen gas or rare gas
- the top plate portion 15A is provided with a cooling mechanism (not shown) such as a cooling liquid circulation channel.
- This cooling mechanism cools the substrate 100 supported by the boat 32 .
- the processed substrate 100 having heat after being processed in the processing chamber 18 is cooled by the cooling mechanism.
- An exhaust pipe 44 that communicates with the inside of the load lock chamber 14 is connected to the bottom plate portion 15B that constitutes the load lock chamber 14 .
- the exhaust pipe 44 is provided downstream with a valve 45 and a vacuum pump 46 as an exhaust device.
- the gas supply valve 43 is closed while the communicating portions 22 and 26 are closed by the gate valves 24 and 28 .
- the valve 45 is opened and the vacuum pump 46 is operated, the inside of the load lock chamber 14 is evacuated, and the inside of the load lock chamber 14 can be evacuated (or decompressed).
- the valve 45 is closed or its opening degree is reduced and the gas supply valve 43 is opened to supply the inert gas to the inside of the load lock chamber 14. By introducing the gas, the inside of the load lock chamber 14 is brought to atmospheric pressure.
- An outer peripheral wall portion 15C forming the load lock chamber 14 is provided with an opening 102 for carrying the substrate 100 into and out of the load lock chamber 14, as shown in FIG. Specifically, the opening 102 is provided on the atmospheric robot 30 side of the outer peripheral wall 15C.
- the atmospheric robot 30 supports the substrate 100 on the boat 32 through the opening 102 and removes the substrate 100 from the boat 32 through the opening 102 .
- a gate valve 104 for opening and closing the opening 102 is provided on the outer peripheral wall portion 15C.
- a window portion 106 is provided in the outer peripheral wall portion 15C.
- This window portion 106 is made of a material that can transmit infrared rays. Germanium, for example, can be used as a material for forming the window portion 106 .
- a temperature sensor 110 is provided on the outdoor side of the window portion 106 .
- the temperature sensor 110 is arranged outside the load lock chamber 14 .
- the temperature sensor 110 is a non-contact temperature sensor that can measure the temperature of the boat 32 in the load lock chamber 14 without contact.
- the temperature sensor 110 measures the temperature of the boat 32 supporting the processed substrate 100 in a non-contact manner.
- This temperature sensor 110 is a radiation thermometer, and measures the temperature of the boat 32 by measuring the intensity of infrared rays emitted from the boat 32 . More specifically, temperature sensor 110 measures the temperature of boat 32 by measuring the intensity of infrared rays emitted from vertical surface 39 of boat 32 through window 106 .
- the driving device 50 is controlled by the controller 120 to be described later so that the vertical surface 39 of the boat 32 is within the temperature measurement range 111 of the temperature sensor 110 .
- the controller 120 controls the driving device 50 to adjust the elevation position and rotation angle of the boat 32 so that the vertical surface 39 of the boat 32 is within the temperature measurement range 111 of the temperature sensor 110 .
- FIG. 4 shows an example in which five temperature measurement ranges 111 are set at approximately the same intervals in the vertical direction of the vertical plane 39 and the temperature is measured in each range.
- a radiation thermometer is used as the temperature sensor 110, which is a non-contact temperature sensor, but a pyrometer may be used.
- the temperature sensor 110 is arranged at a position where the temperature can be measured up to the end of the boat 32 in the vertical direction as the boat 32 moves up and down. Note that, in the present embodiment, as shown in FIG. 3, the temperature sensor 110 is arranged on the lower side of the outer peripheral wall portion 15C. This allows the temperature sensor 110 to measure the temperature of the lower end of the boat 32 when the boat 32 is raised to the highest position.
- the bottom plate portion 15B of the load lock chamber 14 is formed with an opening 48 that communicates the inside and outside of the load lock chamber 14 .
- a driving device 50 is provided below the load lock chamber 14 to raise and lower and rotate the boat 32 through the opening 48 .
- the driving device 50 includes a shaft 52 as a support shaft for supporting the boat 32, a telescopic bellows (not shown) provided so as to surround the shaft 52, and a fixing base 56 to which the lower ends of the shaft 52 and the bellows are fixed. , an elevation drive section 58 that raises and lowers the boat 32 via the shaft 52, a connection member 60 that connects the elevation drive section 58 and the fixed base 56, and a rotation drive section 62 that rotates the boat 32.
- the elevation driving section 58 is configured to raise and lower the boat 32 in the direction in which the plurality of substrates 100 are stacked in multiple stages.
- the upper end of the bellows is fixed around an opening 48 formed in the bottom plate portion 15B that constitutes the load lock chamber 14.
- the rotation drive unit 62 is configured to rotate the boat 32 about the direction in which the substrates 100 are stacked in multiple stages. Specifically, the rotation drive unit 62 rotates the boat 32 around the shaft 52 .
- the transfer chamber 16 is provided with a vacuum robot 70 as a vacuum-side transfer device that transfers the substrate 100 between the load lock chamber 14 and the processing chamber 18 .
- the vacuum robot 70 includes a substrate transport section 72 that supports and transports the substrate 100 and a transport drive section 74 that moves the substrate transport section 72 up and down and rotates it.
- An arm portion 76 is provided in the substrate transfer portion 72 .
- the arm portion 76 is provided with a finger 78 on which the substrate 100 is placed.
- a plurality of fingers may be provided on the arm portion 76 at predetermined intervals in the vertical direction.
- the arm portions 76 may be stacked in multiple stages.
- the finger 78 is configured to be extendable and retractable in a substantially horizontal direction.
- the vacuum robot 70 moves the substrate 100 supported on the boat 32 via the communication section 22 into the transfer chamber 16, and then moves the communication section 26. , into the processing chamber 18 via the .
- the transfer of the substrate 100 from the processing chamber 18 to the load lock chamber 14 is performed by moving the substrate 100 in the processing chamber 18 into the transfer chamber 16 via the communication section 26 by the vacuum robot 70, and then moving the substrate 100 into the transfer chamber 16. 22 and supported by the boat 32.
- the processing chamber 18 includes a first processing section 80 , a second processing section 82 located farther from the transfer chamber 16 than the first processing section 80 , and the second processing section 82 and the vacuum robot 70 .
- a substrate moving unit 84 that transports the substrate 100 therebetween is provided.
- the first processing section 80 includes a mounting table 92 on which the substrate 100 is mounted and a heater 94 that heats the mounting table 92 .
- the second processing section 82 includes a mounting table 96 for mounting the substrate 100 and a heater 98 for heating the mounting table 96 .
- the first processing section 80 and the second processing section 82 are configured to process the substrate 100 in the same manner.
- the substrate moving part 84 is composed of a moving member 86 that supports the substrate 100 and a moving shaft 88 provided near the boundary wall 20 .
- the moving member 86 is provided so as to rotate and move up and down around a moving shaft 88 .
- the substrate moving section 84 rotates the moving member 86 toward the first processing section 80 side, thereby transferring the substrate 100 to and from the vacuum robot 70 on the first processing section 80 side. In this manner, the substrate moving section 84 moves the substrate 100 transferred by the vacuum robot 70 to the second mounting table 96 of the second processing section 82 and also moves the substrate mounted on the second mounting table 96 to the second mounting table 96 . 100 is moved to the vacuum robot 70 .
- the substrate processing apparatus 10 includes a controller 120 as a control unit, as shown in FIG.
- the controller 120 is configured as a computer including a CPU (Central Processing Unit) 121A, a RAM (Random Access Memory) 121B, a storage device 121C, and an I/O port 121D.
- CPU Central Processing Unit
- RAM Random Access Memory
- the RAM 121B, storage device 121C, and I/O port 121D are configured to be able to exchange data with the CPU 121A via the internal bus 121E.
- An input/output device 122 configured as, for example, a touch panel or the like is connected to the controller 120 .
- the storage device 121C is composed of, for example, a flash memory, HDD (Hard Disk Drive), or the like.
- a control program for controlling the operation of the substrate processing apparatus, a process recipe describing procedures and conditions for substrate processing, which will be described later, and the like are stored in a readable manner.
- the process recipe functions as a program in which the controller 120 executes each procedure in the substrate processing process, which will be described later, and is combined so as to obtain a predetermined result.
- the process recipe, the control program, and the like are collectively referred to simply as the program.
- a process recipe is also simply referred to as a recipe.
- the RAM 121B is configured as a memory area (work area) in which programs and data read by the CPU 121A are temporarily held.
- the I/O port 121D is connected to the temperature sensor 110, the atmospheric robot 30, the vacuum robot 70, the driving device 50, the gate valve 24, the gate valve 28, the gate valve 104, the gas supply valve 43, the valve 45, the vacuum pump 46, and the substrate moving part. 84, a first heater 94, a second heater 98 and the like.
- the CPU 121A is configured to read and execute a control program from the storage device 121C, and to read recipes from the storage device 121C in response to input of operation commands from the input/output device 122 and the like.
- the CPU 121A carries out the transport operation of the substrate 100 by the atmosphere robot 30, the vacuum robot 70, the driving device 50, and the substrate moving unit 84, and the opening/closing operation of the gate valve 24, the gate valve 28, and the gate valve 104 so as to follow the content of the read recipe. , gas supply valve 43, valve 45 and vacuum pump 46 for flow rate/pressure adjustment, first heater 94 and second heater 98 for temperature adjustment, and the like.
- the controller 120 installs the above-described program stored in an external storage device (for example, a magnetic disk such as a hard disk, an optical disk such as a CD, a magneto-optical disk such as an MO, a semiconductor memory such as a USB memory) 123 into a computer.
- an external storage device for example, a magnetic disk such as a hard disk, an optical disk such as a CD, a magneto-optical disk such as an MO, a semiconductor memory such as a USB memory
- the storage device 121C and the external storage device 123 are configured as computer-readable recording media. Hereinafter, these are also collectively referred to simply as recording media.
- recording medium When the term "recording medium" is used in this specification, it may include only the storage device 121C alone, may include only the external storage device 123 alone, or may include both of them.
- the program may be provided to the computer using communication means such as the Internet or a dedicated line without using the external storage device 123 .
- the controller 120 acquires temperature information from the temperature sensor 110 that measures the temperature of the boat 32 .
- the controller 120 obtains (calculates) the temperature of the substrate 100 based on the acquired temperature information.
- the temperature of the substrate 100 located on the vertical surface 39 at the position corresponding to the temperature measurement position by the temperature sensor 110 is obtained based on the temperature measured by the temperature sensor 110 .
- the relationship between the temperature of the portion corresponding to the temperature measurement position on the vertical surface 39 and the temperature of the substrate 100 supported by that portion is obtained in advance by experiment or the like, and the relationship is calculated.
- the controller 120 controls the rotation drive section 62 of the drive device 50 so that the vertical surface 39 of the boat 32 faces the window section 106 when measuring the temperature of the boat 32 .
- the controller 120 controls the rotation drive section 62 of the drive device 50 so that the vertical surface 39 of the boat 32 faces the temperature sensor 110 arranged outside the window section 106 when the temperature of the boat 32 is measured. By doing so, the rotation angle of the boat 32 is adjusted.
- the controller 120 controls the elevation drive unit 58 so that the vertical plane 39 of the boat 32 faces the window 106 and moves (elevates) in the vertical direction with respect to the window 106 . Then, the temperature of the vertical surface 39 is measured at a plurality of positions.
- the controller 120 changes the relative position between the vertical surface 39 and the temperature sensor 110 in the vertical direction of the boat 32 while the vertical surface 39 is within the temperature measurement range 111 of the temperature sensor 110.
- An elevating process for elevating the boat 32 supporting the plurality of substrates 100 is performed.
- the temperature sensor 110 measures temperatures at multiple positions on the vertical surface 39 , and the controller 120 acquires temperature information at multiple measurement positions on the vertical surface 39 .
- the controller 120 is supported by the part corresponding to each measurement position based on the acquired temperature information of each measurement position. The temperature of each substrate 100 is obtained (calculated).
- the controller 120 controls the driving device 50 to move the boat 32 upward and downward at least once. In other words, the controller 120 regards the operation of raising (or lowering) the boat 32 from the initial position and then lowering the boat 32 and returning it to the initial position as one lifting operation.
- the controller 120 acquires the temperature information multiple times at the same measurement position. Note that when temperature information is acquired a plurality of times at the same measurement position, the temperature of the substrate 100 can be obtained based on the average value of the temperature information or the latest temperature information.
- the controller 120 measures the temperature of the boat 32 using the temperature sensor 110 after the processed substrate 100 is supported by the boat 32 and cooled in the load lock chamber 14 for a predetermined period of time. It is determined whether or not the transfer to the atmosphere transfer chamber 12 is possible. Here, whether or not it is possible to carry out the substrate 100 to the atmosphere transfer chamber 12 is determined to be possible when the temperature of the boat 32 is equal to or lower than a preset threshold value, and determined to be impossible when the temperature exceeds the threshold value. When the controller 120 determines that the substrate 100 can be unloaded, the gate valve 104 of the load lock chamber 14 is opened, and the atmospheric robot 30 unloads the substrate 100 .
- the controller 120 measures the temperature of the boat 32 again after a predetermined period of time has elapsed.
- the temperature is measured at a plurality of positions on the vertical surface 39, it may be determined that the substrate 100 should not be unloaded if the temperature information of at least one measurement position exceeds the threshold value. Further, in this case, the average of the measured temperatures measured at a plurality of positions on the vertical surface 39 may be calculated, and if the average exceeds the threshold, it may be determined that the substrate 100 should not be unloaded.
- the temperature of the substrate 100 may be obtained based on the temperature of the boat 32, and whether or not the substrate 100 can be unloaded may be determined based on whether or not the temperature of the substrate 100 exceeds a preset threshold value. Further, when the temperature of each of the substrates 100 supported at a plurality of positions is obtained by measuring the temperature at a plurality of positions on the vertical surface 39, if the temperature of at least one substrate 100 exceeds the threshold value, the substrate 100 is unloaded. may be judged to be negative.
- the controller 120 also controls the temperature of the vertical surface 39 or the temperature of the substrate 100 measured by the temperature sensor 110 provided in the load-lock chamber 14A and the temperature of the vertical surface measured by the temperature sensor 110 provided in the load-lock chamber 14B. 39 or the temperature of the substrate 100, the atmospheric robot changes the route for transferring the substrate 100 between the atmospheric transfer chamber 12 and the transfer chamber 16 via the load lock chamber 14 or the load lock chamber 14B. 30 and vacuum robot 70. Specifically, the controller 120 determines, for example, the temperatures of the substrates 100 supported by the boats 32 of the load-lock chambers 14A and 14B, respectively, to determine which of the load-lock chambers 14A and 14B is the temperature. It is configured to estimate whether the processed substrate 100 will be unloaded to the atmosphere transfer chamber 12 earlier, and change the route of the next processed substrate 100 to the load lock chamber 14 where the processed substrate 100 is unloaded earlier. good too.
- controller 120 controls the temperature of the boat 32 obtained from the temperature sensor 110 in the load-lock chamber 14A and the temperature of the boat 32 obtained from the temperature sensor 110 in the load-lock chamber 14B to approach each other. and the frequency of carrying the processed substrates 100 from the transfer chamber 16 to the load lock chamber 14B.
- the atmospheric robot 30 unloads the substrates 100 stored in the pods 27-1 to 27-3 into the atmospheric transfer chamber 12.
- the gate valve 104 is opened after the inside of the load lock chamber 14 is atmospheric pressure. Specifically, the gas supply valve 43 of the gas supply pipe 42 is opened to supply the inert gas into the load lock chamber 14 . After the inside of the load lock chamber 14 is brought to atmospheric pressure in this manner, the gate valve 104 is opened.
- the substrate 100 is carried into the load lock chamber 14 .
- the atmospheric robot 30 transfers the substrate 100 carried into the atmospheric transfer chamber 12 into the load lock chamber 14 and places the substrate 100 in the support groove 40 of the boat 32 in the chamber. The substrate 100 is thereby supported by the boat 32 .
- the load lock chamber 14 is evacuated. Specifically, after the boat 32 supports a predetermined number of substrates 100 , the valve 45 of the exhaust pipe 44 is opened and the load lock chamber 14 is evacuated by the vacuum pump 46 . In this manner, the load lock chamber 14 is evacuated. At this time, the transfer chamber 16 and the processing chamber 18 are evacuated.
- the substrate 100 is transferred from the load lock chamber 14 to the processing chamber 18 .
- the gate valve 24 is opened.
- the elevation driving unit 58 raises and lowers the boat 32 so that the substrate 100 supported by the boat 32 can be taken out by the vacuum robot 70 .
- the rotation drive unit 62 rotates the boat 32 so that the substrate outlet of the boat 32 faces the transfer chamber 16 side.
- the vacuum robot 70 extends the fingers 78 of the arm section 76 toward the boat 32 and places the substrate 100 on these fingers 78 . After retracting the finger 78, the arm portion 76 is rotated to face the processing chamber 18 side. Next, the fingers 78 are extended, and the substrate 100 is carried into the processing chamber 18 through the communicating portion 26 with the gate valve 28 opened.
- the substrate 100 mounted on the fingers 78 is mounted on the mounting table 92 of the processing section 80 or transferred to the moving member 86 waiting on the processing section 80 side. After receiving the substrate 100 , the moving member 86 rotates toward the processing section 82 and places the substrate 100 on the mounting table 96 .
- the substrate 100 is subjected to a predetermined process such as an ashing process.
- a predetermined process such as an ashing process.
- the temperature of the substrate 100 rises by being heated by a heater or by being heated by reaction heat generated by the processes.
- the substrate 100 after processing is transferred from the processing chamber 18 to the load lock chamber 14 .
- the transfer (carrying in) of the substrate 100 from the processing chamber 18 to the load lock chamber 14 is performed in the reverse order of the operation for carrying the substrate 100 into the processing chamber 18 .
- the inside of the load lock chamber 14 is maintained in a vacuum state.
- the gate valve 24 is closed and the pressure in the load-lock chamber 14 is increased to atmospheric pressure.
- the gas supply valve 43 of the gas supply pipe 42 is opened to supply the inert gas into the load lock chamber 14 .
- the inside of the load lock chamber 14 is brought to atmospheric pressure by the inert gas.
- the boat 32 and the substrate 100 supported by the boat 32 are cooled by the cooling mechanism and the inert gas supplied into the load lock chamber 14 . Cooling of the substrate 100 in the load lock chamber 14 is performed for a predetermined time T1.
- the supplied inert gas may be cooled in advance in a stage preceding the gas supply pipe 42 in order to promote cooling.
- the boat 32 is raised or lowered to a position for cooling.
- cooling is performed while the boat 32 is raised to the highest position, thereby promoting cooling by the cooling mechanism.
- step S132 the controller 120 starts temperature measurement of the boat 32 by the temperature sensor 110 as shown in FIG. 5 (step S132).
- the temperature sensor 110 measures the temperature of the boat 32 supporting the plurality of substrates 100.
- the controller 120 controls the rotation drive unit 62 to rotate the boat 32 so that the vertical surface 39 of the boat 32 faces the temperature sensor 110 through the window 106 .
- the boat 32 is rotated to the same rotational position as the boat 32 when carrying out the substrate 100 from the gate valve 104 .
- the lift drive unit 58 is controlled to lift the boat 32 so that the vertical surface 39 of the boat 32 moves vertically relative to the temperature sensor 110 through the window 106 .
- the boat 32 which had risen to the highest position during cooling, is lowered to the lowest position by the elevation drive unit 58.
- the temperature from the lower end to the upper end of vertical surface 39 is measured as it is scanned by temperature sensor 110 .
- the boat 32 is raised to the highest position again. to measure.
- the temperature from the upper end portion to the lower end portion of the vertical surface 39 can be obtained at least twice or more, and the accuracy of temperature measurement can be improved.
- step S134 the controller 120 acquires temperature information of the boat 32 measured by the temperature sensor 110, and compares the acquired temperature information with a preset threshold (step S134).
- step S134 the controller 120 determines that the substrate 100 supported by the boat 32 has been sufficiently cooled when the acquired temperature information is equal to or less than the above threshold, and proceeds to step S136.
- step S132 if the acquired temperature information exceeds the threshold, it is determined that the substrate 100 supported by the boat 32 is not sufficiently cooled, and the process returns to step S132.
- step S132 is executed after the predetermined time T1 has elapsed.
- the time until step S132 is re-executed may be a predetermined time T2 that is shorter than the predetermined time T1.
- the controller 120 may calculate the difference between the acquired temperature information and the threshold value, and set the time until re-execution of step S132 to be different according to the calculated difference.
- step S134 the controller 120 compares the temperature information of the boat 32 acquired from the temperature sensor 110 with the threshold. However, in step S134, the controller 120 calculates the temperature of the substrate 100 supported at the portion corresponding to each measurement position based on the acquired temperature information of the boat 32, and A similar determination may be made by comparing set threshold values.
- step S134 it is desirable to continue supplying the inert gas from the gas supply pipe 42 at least until it is determined in step S134 that the substrate 100 has been sufficiently cooled.
- the valve 45 of the exhaust pipe 44 is opened with a small degree of opening, and the load lock chamber 14 is continuously evacuated by the vacuum pump 46 so that the pressure in the load lock chamber 14 is kept constant.
- the gate valve 104 is opened.
- the pressure inside the load-lock chamber 14 is increased to atmospheric pressure.
- the inside of 14 may be atmospheric pressure. However, from the viewpoint of improving the throughput and improving the cooling speed of the substrate 100, it is preferable to start atmospheric pressure in the load lock chamber 14 when the loading of the substrate 100 is completed.
- the cooled substrate 100 is unloaded from the load lock chamber 14 to the atmosphere (step S138). Specifically, the substrate 100 is transferred from the load lock chamber 14 with the gate valve 104 open to the atmospheric transfer chamber 12 using the atmospheric robot 30 . Thus, the operation of transporting the substrate 100 is completed. Further, the cooled substrate 100 is transferred to the atmosphere transfer chamber 12, thereby completing the manufacture of the substrate 100, which is a semiconductor device.
- the program according to the present embodiment includes a load lock chamber 14 into which substrates 100 are loaded and unloaded, a boat 32 provided in the load lock chamber 14 for supporting a plurality of substrates 100 in multiple stages at predetermined intervals, and a substrate 100 and a temperature sensor 110 capable of measuring the temperature of the boat 32 in a state of supporting the substrate 100 in a non-contact manner.
- a boat 32 provided in the load lock chamber 14 supports a plurality of substrates 100 in multiple stages at predetermined intervals, and the temperature of the boat 32 supporting the plurality of substrates 100 is changed to It is a program for executing a procedure for measuring with the contact temperature sensor 110 .
- the substrate may react with the atmosphere at high temperature, causing undesirable oxidation or damaging the device or parts. Therefore, it is required to know the temperature of the processed substrate in the load lock chamber. For example, when using a contact temperature sensor such as a thermocouple (TC), particles may be generated due to contact between the substrate and the thermocouple. Also, when the boat is driven, it may be difficult to wire the TC. Therefore, it is desirable to measure the temperature of the substrate using a temperature sensor capable of non-contact temperature measurement.
- TC thermocouple
- the substrate is directly measured by a non-contact temperature sensor, it may be difficult to accurately measure the temperature depending on the type of substrate and the position in the load lock chamber.
- a radiation thermometer that measures the temperature based on a specific emissivity It can be difficult to accurately measure the temperature of the substrate with a non-contact temperature sensor such as.
- the substrate when measuring the temperature of a substrate made of a material with high infrared transmittance (low emissivity) such as a Si wafer, the substrate transmits infrared rays radiated from other heat sources, and the infrared rays are not emitted.
- the contact sensor receives the light, it may not be possible to accurately measure the temperature of the substrate itself, which is the object of temperature measurement.
- the amount of transmitted infrared rays differs depending on the positions of the substrates in the load lock chamber, which may make it impossible to accurately measure the temperatures of each of the plurality of substrates.
- the temperature of the substrate 100 unloaded from the load-lock chamber 14 can be accurately controlled by grasping the temperature of the substrate unloaded from the load-lock chamber 14 . Therefore, for example, by limiting the temperature of the substrate 100 unloaded from the load-lock chamber 14, it is possible to prevent the substrate 100 from reacting with the atmosphere at high temperature, causing unwanted oxidation, and damaging the device and parts. can be suppressed. Further, for example, it is possible to suppress variations in the temperature of the substrate 100 unloaded from the load-lock chamber 14, thereby reducing the effects of temperature variations (variation in the degree of oxidation, etc.).
- the temperature sensor 110 configured to measure the temperature of the boat 32 supporting the substrate 100 in a non-contact manner, it is possible to etc.) and the position in the load lock chamber 14, the temperature of the substrate 100 supported by the boat 32 can be accurately grasped, and the temperature can be easily controlled.
- the temperature of the substrate 100 can be obtained based on the temperature of the boat 32 measured by the controller 120 . Therefore, it is possible to accurately grasp the temperature of the substrate 100 supported by the boat 32 .
- the vertical surface 39 of the boat 32 is a surface wider than the spot diameter (temperature measurement range 111) of the temperature sensor 110.
- the temperatures are measured at a plurality of positions on the vertical surface 39 corresponding to the plurality of supported substrates 100, the temperature of each substrate 100 can be calculated.
- the entire temperature measurement range 111 of the temperature sensor 110 is within the vertical surface 39 . Accordingly, it is possible to accurately grasp the temperature of the substrate 100 based on the temperature measurement of the boat 32 .
- temperatures are measured and acquired at multiple locations on the boat 32 by fixed temperature sensors 110 . Therefore, it is possible to obtain the temperature of the substrate 100 placed at each position on the vertical surface 39 of the boat 32 whose temperature is measured and obtained by the temperature sensor 110 .
- the vertical surface 39 of the boat 32 is made to face the temperature sensor 110 through the window 106, and then the temperature of the vertical surface 39 is measured and measured more accurately by the fixed temperature sensor 110 by moving up and down. can be obtained.
- the temperature of the vertical surface 39 of the boat 32 is measured and measured more accurately by the fixed temperature sensor 110 by moving up and down. can be obtained.
- the substrate 100 in the load-lock chamber 14 by increasing the pressure in the load-lock chamber 14 with an inert gas, heat dissipation from the substrate 100 supported in the load-lock chamber 14 is promoted, and the substrate 100 is cooled in the load-lock chamber 14. can do. Also, by measuring the temperature of the boat 32, the temperature of the substrate 100 cooled in the inert gas atmosphere can be obtained. Thereby, the substrate 100 in the load-lock chamber 14 can be cooled in the load-lock chamber 14 until it becomes equal to or less than a preset threshold value and then unloaded.
- the temperature sensor 110 by providing the temperature sensor 110 outside the load lock chamber 14, installation and maintenance of the temperature sensor 110 are facilitated. Also, the temperature sensor 110 does not need to have high heat resistance.
- the boat 32 is made of aluminum or the like, which has a smaller change in infrared emissivity with respect to temperature changes in the temperature range to be measured than the material of the substrate.
- the substrate 100 can be supported by the boat 32. It is possible to accurately grasp the temperature of the substrate 100 and easily manage the temperature.
- at least one (preferably both) of the infrared transmittance and reflectance in the temperature range to be measured is smaller than the material constituting the substrate (or the emissivity is greater than that of the material constituting the substrate.
- the boat 32 is made of a material such as aluminum. Therefore, the temperature of the substrate 100 supported by the boat 32 can be accurately grasped regardless of the type of the substrate 100 (especially reflectance or transmittance) or the position in the load lock chamber 14, and the temperature can be easily controlled. becomes possible. In particular, it is desirable that the material forming the boat 32 is substantially opaque to infrared rays.
- At least the surface of the vertical surface 39 is anodized so that the infrared reflectance is smaller than that of the substrate 100 (ie, the emissivity is larger). This makes it possible to obtain the above-described effects more remarkably.
- the thickness of the portion corresponding to the vertical surface 39 is constant, the correlation between the temperature of the loaded substrates 100 and the measured temperature of the boat 32 is constant, and the temperature of the substrates 100 can be obtained. becomes easier.
- the controller 120 changes the transport path of the substrates 100 according to the conditions, so that the temperature deviation of the substrates 100 unloaded from the load lock chamber 14 is reduced, and the temperature deviation of the boat 32 is reduced. cooling time of the substrate 100 can be shortened.
- the temperature sensor 110 is arranged on the lower side of the outer peripheral wall portion 15C of the load lock chamber 14, but the present disclosure is not limited to this configuration.
- the temperature sensor 110 may be provided at any position in the load lock chamber 14 as long as it can measure the temperature at the end of the boat 32 .
- a window portion 106 is provided at a portion of the outer peripheral wall portion 15C where the temperature sensor 110 is provided.
- the temperature of the boat 32 is measured by the temperature sensor 110 after the substrate 100 is cooled for a predetermined time in the load lock chamber 14, but the present disclosure is not limited to this configuration.
- the temperature of a part of the boat 32 is continuously measured while the substrate 100 is being cooled in the load lock chamber 14, and the temperature information from the temperature sensor 110 being measured becomes equal to or less than a preset threshold value.
- the temperature of boat 32 may be measured by temperature sensor 110 .
- one window 106 is provided in the load lock chamber 14 and one temperature sensor 110 is arranged in this window 106, but the present disclosure is not limited to this configuration.
- a plurality of windows 106 may be provided in the load lock chamber 14 and the temperature sensors 110 may be arranged in each of these windows 106, or one large window 106 may be formed and a plurality of A temperature sensor 110 may be placed.
- an alarm notification may be sent via the interface along with the suspension of unloading.
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Abstract
Description
なお、本実施形態では、非接触温度センサである温度センサ110として放射温度計を用いているが、パイロメータを用いてもよい。
次に、基板処理装置10を用いた半導体装置の製造方法、すなわち、基板100の処理手順について説明する。なお、基板処理装置10の各構成部は上記のようにコントローラ120によって制御される。
このようにして、基板100の搬送動作を完了する。また、冷却済みの基板100が大気搬送室12に搬送されることで、半導体装置である基板100の製造が完了する。
本実施形態に係るプログラムは、基板100が搬入及び搬出されるロードロック室14と、ロードロック室14内に設けられ、複数の基板100を所定の間隔で多段に支持するボート32と、基板100を支持している状態のボート32の温度を非接触で測定可能な温度センサ110と、を備える基板100の処理装置に実行させるプログラムであって、ロードロック室14内に複数の処理済みの基板100を搬入し、ロードロック室14内に設けられたボート32に複数の基板100を所定の間隔で多段に支持させる手順と、複数の基板100を支持している状態のボート32の温度を非接触の温度センサ110で測定する手順と、を実行させるプログラムである。
ロードロック室から搬出される基板の温度が変動すると、基板が高温な状態で大気と反応し望まない酸化を生じさせたり、装置や部品を破損させたりすることがある。そのため、ロードロック室内の処理済みの基板の温度を把握することが求められている。例えば、熱電対(TC)等の接触式温度センサを用いる場合、基板と熱電対との接触によりパーティクルが発生することがある。また、ボートが駆動する場合には、TC等の配線を行うことが困難となることがある。そのため、非接触で温度測定が可能な温度センサを用いて基板の温度測定を行うことが望ましい。しかし、基板を非接触の温度センサで直接測定すると、基板の種類やロードロック室内の位置によって、正確に温度測定することが困難なことがある。例えば、Siウェーハ等の半導体ウェーハのように、温度によって赤外線の放射率が大きく変化する材質で構成された基板の温度測定を行う場合、特定の放射率を基に温度の測定を行う放射温度計などの非接触の温度センサでは、正確な基板の温度を測定するのが困難なことがある。更に、例えばSiウェーハ等のような赤外線の透過率が大きい(放射率が小さい)材質の基板の温度測定を行う場合、他の熱源から放射される赤外線を基板が透過して、その赤外線を非接触センサが受光してしまうことで、温度測定対象である基板自体の温度を正確に測定することができないことがある。また、ロードロック室内の基板の位置によって透過される赤外線の量が異なることとなり、複数の基板の温度をそれぞれ正確に測定することができないことがある。
本開示は上述の実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。例えば、上述の実施形態では、温度センサ110がロードロック室14の外周壁部15Cの下部側に配置されているが、本開示はこの構成に限定されない。温度センサ110がボート32端部の温度測定が可能であれば、ロードロック室14のどの位置に設けてもよい。なお、外周壁部15Cの温度センサ110を設ける部位には、窓部106を設ける。
本明細書に記載された全ての文献、特許出願、および技術規格は、個々の文献、特許出願、および技術規格が参照により取り込まれることが具体的かつ個々に記された場合と同程度に、本明細書中に参照により取り込まれる。
14 ロードロック室
32 ボート
39 垂直面
58 昇降駆動部
100 基板
110 温度センサ
120 コントローラ
Claims (23)
- 基板が搬入及び搬出されるロードロック室と、
前記ロードロック室内に設けられ、複数の前記基板を所定の間隔で多段に支持する支持具と、
前記基板を支持している状態の前記支持具の温度を非接触で測定可能な温度センサと、
を備える基板処理装置。 - 前記温度センサによって測定された前記支持具の温度に基づいて、前記基板の温度を求めることが可能なよう構成された制御部を更に備える、請求項1に記載の基板処理装置。
- 前記支持具は、支持された状態の前記基板の面に対して垂直な方向に延びる垂直面を有し、
前記温度センサは、前記基板を支持している状態の前記支持具の前記垂直面の温度を非接触で測定するように構成されている、請求項1に記載の基板処理装置。 - 複数の前記基板が多段に積載される方向を軸として前記支持具を回転させる回転駆動部と、
前記垂直面が前記温度センサに対向する角度まで、複数の前記基板を支持した状態の前記支持具を回転させる回転処理を行うように、前記回転駆動部を制御することが可能なよう構成された制御部と、
を更に備える請求項3に記載の基板処理装置。 - 前記制御部は、前記回転処理を行った後、前記温度センサで測定された前記支持具の温度を取得することが可能なよう構成されている、請求項4に記載の基板処理装置。
- 前記制御部は、前記温度センサで測定された前記支持具の温度を取得するときに、前記温度センサの温度測定範囲が全て前記垂直面内に入るように、前記回転処理において前記支持具を回転させことが可能なよう構成されている、請求項5に記載の基板処理装置。
- 複数の前記基板が多段に積載される方向に前記支持具を昇降させる昇降駆動部と、
前記温度センサによって測定された前記支持具の温度を取得すると共に、前記昇降駆動部の昇降動作を制御することが可能なよう構成された制御部と、を更に備え、
前記支持具は、支持された状態の前記基板の面に対して垂直な方向に延びる垂直面を有しており、
前記制御部は、前記温度センサの温度測定範囲内に前記垂直面が入った状態で、前記支持具の昇降方向における前記垂直面と前記温度センサとの相対的な位置を変えるように、複数の前記基板を支持した状態の前記支持具を昇降させる昇降処理を行い、前記温度センサによって前記垂直面の複数の測定位置で温度が取得されるように、前記昇降駆動部を制御することが可能なよう構成されている、請求項1に記載の基板処理装置。 - 複数の前記基板が多段に積載される方向を軸として前記支持具を回転させる回転駆動部を更に備え、
前記制御部は、前記垂直面が前記温度センサに対向する角度まで、複数の前記基板を支持した状態の前記支持具を回転させる回転処理を行った後、前記昇降処理を行って、前記温度センサによって前記垂直面の複数の測定位置で温度を取得することが可能なよう構成されている、請求項7に記載の基板処理装置。 - 前記制御部は、前記測定位置で取得された温度に基づいて、前記測定位置に対応する前記垂直面の位置に支持された前記基板の温度を求めることが可能なよう構成されている、請求項7に記載の基板処理装置。
- 前記制御部は、前記昇降処理において、前記支持具の上昇と下降を連続して少なくとも1回ずつ行い、前記温度センサで前記測定位置ごとに、当該測定位置の温度を複数回取得するように、前記昇降駆動部を制御することが可能なよう構成されている、請求項7に記載の基板処理装置。
- 前記制御部は、前記昇降処理において、前記測定位置ごとに複数回取得された温度の平均値を、前記測定位置の温度として求めることが可能なよう構成されている、請求項10に記載の基板処理装置。
- 前記制御部は、求められた前記測定位置の温度に基づいて、前記測定位置に対応する前記垂直面の位置に支持された前記基板の温度を求めることが可能なよう構成されている、請求項11に記載の基板処理装置。
- 前記ロードロック室内に不活性ガスを供給する供給部を更に備え、
前記制御部は、前記供給部のガス供給を制御可能とされ、前記基板が搬入された前記ロードロック室内に前記不活性ガスを供給することで前記ロードロック室内の圧力を上昇させることが可能なよう構成されている、請求項7~請求項12のいずれか1項に記載の基板処理装置。 - 前記制御部は、前記ロードロック室内に不活性ガスを所定時間供給した後で、前記昇降処理を行って、前記温度センサによって前記垂直面の複数の測定位置で温度を取得するように構成されている、請求項13に記載の基板処理装置。
- 前記制御部は、前記温度センサによって取得された複数の前記測定位置の温度のうち、少なくとも1つが予め設定された閾値を超えた場合、前記支持具により前記基板を支持したまま前記不活性ガスの供給を継続し、所定時間経過後、再度、前記昇降処理を行い、前記温度センサによって測定された前記支持具の温度を取得するように構成されている、請求項14に記載の基板処理装置。
- 前記基板を大気搬送室と前記ロードロック室との間で搬送する大気側搬送装置を更に備え、
前記制御部は、前記大気側搬送装置の搬送動作を制御可能とされ、前記温度センサによって取得された複数の前記測定位置の温度のうち、少なくとも1つが予め設定された閾値以下である場合、前記大気側搬送装置によって複数の前記基板を前記ロードロック室から搬出させるように構成されている、請求項15に記載の基板処理装置。 - 前記支持具は、支持された状態の前記基板の面に対して垂直な方向に延びる垂直面を有しており、
前記垂直面は、前記基板よりも赤外線の透過率が小さい、請求項2に記載の基板処理装置。 - 前記支持具は、支持された状態の前記基板の面に対して垂直な方向に延びる垂直面を有しており、
前記垂直面は、赤外線に対して不透明な材料で形成されている、請求項2に記載の基板処理装置。 - 前記支持具は、支持された状態の前記基板の面に対して垂直な方向に延びる垂直面を有しており、
前記垂直面は、前記支持具を構成する支柱部に設けられており、
前記支柱部における前記垂直面に対応する部分の厚みは、複数の前記基板が多段に積載される方向において一定である、請求項2に記載の基板処理装置。 - 基板が搬入及び搬出される複数のロードロック室と、
前記ロードロック室内に設けられ、複数の前記基板を所定の間隔で多段に支持する支持具と、
前記基板を支持している状態の前記支持具の温度を非接触で測定可能な温度センサと、
前記ロードロック室の一方側に接続された大気搬送室と、
前記ロードロック室の他方側に接続された真空搬送室と、
前記大気搬送室に設けられて、前記基板を前記大気搬送室と前記ロードロック室との間で搬送する大気側搬送装置と、
前記真空搬送室に設けられて、前記基板を前記真空搬送室と前記ロードロック室との間で搬送する真空側搬送装置と、
一の前記ロードロック室に設けられた前記温度センサにより測定された温度と、他の前記ロードロック室に設けられた前記温度センサにより測定された温度とに基づいて、前記一のロードロック室又は前記他のロードロック室を介して前記大気搬送室と前記真空搬送室の間で前記基板を搬送する経路を変更するように、前記大気側搬送装置の搬送動作及び前記真空側搬送装置の搬送動作を制御するように構成された制御部と、
を備える基板処理装置。 - 前記制御部は、前記一のロードロック室において前記温度センサから取得した前記支持具の温度と、前記他のロードロック室において前記温度センサから取得した前記支持具の温度が近づくように、前記真空搬送室から前記一のロードロック室に前記基板を搬入する頻度と、前記真空搬送室から前記他のロードロック室に前記基板を搬入する頻度を変更するように構成されている、請求項20に記載の基板処理装置。
- ロードロック室内に複数の基板を搬入し、前記ロードロック室内に設けられた支持具に前記複数の基板を所定の間隔で多段に支持させる工程と、
前記複数の基板を支持している状態の前記支持具の温度を非接触の温度センサで測定する工程と、
を有する、半導体装置の製造方法。 - コンピュータに、
ロードロック室内に複数の基板を搬入し、前記ロードロック室内に設けられた支持具に前記複数の基板を所定の間隔で多段に支持させる手順と、
前記複数の基板を支持している状態の前記支持具の温度を非接触の温度センサで測定する手順と、
を実行させるプログラム。
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WO2009072426A1 (ja) * | 2007-12-06 | 2009-06-11 | Ulvac, Inc. | 真空処理装置及び基板処理方法 |
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JP2011176197A (ja) * | 2010-02-25 | 2011-09-08 | Nikon Corp | 搬送装置および基板接合装置 |
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WO2009072426A1 (ja) * | 2007-12-06 | 2009-06-11 | Ulvac, Inc. | 真空処理装置及び基板処理方法 |
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