WO2006040858A1 - 非接触型吸着保持装置 - Google Patents
非接触型吸着保持装置 Download PDFInfo
- Publication number
- WO2006040858A1 WO2006040858A1 PCT/JP2005/011912 JP2005011912W WO2006040858A1 WO 2006040858 A1 WO2006040858 A1 WO 2006040858A1 JP 2005011912 W JP2005011912 W JP 2005011912W WO 2006040858 A1 WO2006040858 A1 WO 2006040858A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adsorption
- suction
- contact type
- bernoulli
- wafer
- Prior art date
Links
Classifications
-
- 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
- H01L21/68—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 positioning, orientation or alignment
-
- 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
- H01L21/67132—Apparatus for placing on an insulating substrate, e.g. tape
-
- 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
-
- 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
-
- 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
- H01L21/6838—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 with gripping and holding devices using a vacuum; Bernoulli devices
Definitions
- the present invention relates to a non-contact type adsorption device for adsorbing and holding a main part of a plate-like member such as a semiconductor wafer in a non-contact manner.
- a predetermined circuit pattern is formed on the surface of a semiconductor wafer (hereinafter simply referred to as "wafer"), and then the thickness of the wafer is reduced.
- a semiconductor chip is manufactured by polishing the back surface of the wafer in order to make it thin and uniform, or to remove the oxide film generated during circuit formation, and then dicing the wafer into individual circuits. ing.
- Patent Document 1 a vacuum suction method in which the wafer is sucked and held by vacuum suction (Patent Document) 1) and an electrostatic chuck method (see Patent Document 2) that attracts and holds a wafer by electrostatic force is known.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-324831
- Patent Document 2 Japanese Patent Laid-Open No. 6_334024
- the entire lower surface of the wafer is sucked and held in contact with the suction table.
- the entire circuit surface on the front side comes into contact with the suction table, and the circuit surface is damaged by the suction force, and the solder bumps formed on the circuit surface are destroyed. There was a problem that a bug occurred.
- the present invention has been made in view of the above problems, and its object is to make contact with a plate-like member in a non-contact manner in which a portion (main portion) excluding its peripheral portion is floated with respect to the suction table. By adsorbing and holding in a state, the plate-like member can be securely attached without damaging its surface.
- An object of the present invention is to provide a non-contact type adsorption / holding device that can be held on the surface.
- the Bernoulli suction means for generating a negative pressure by gas ejection is arranged on the suction table, and the lower peripheral edge portion is placed on the suction table.
- the plate member is held by the Bernoulli suction means in a state where the portion excluding the peripheral portion of the placed plate member is floated with respect to the suction table, and is sucked without contact with the suction table. It is characterized by holding.
- the invention according to claim 2 is the invention according to claim 1, wherein a plurality of the Bernoulli suction means are arranged on the suction table.
- the invention according to claim 3 is the invention according to claim 2, characterized in that a plurality of the Bernoulli adsorption means are arranged equally on the same circumference of the adsorption table.
- the invention of claim 4 is the invention of claim 2 or 3, wherein a chamber is formed in the adsorption table, the chamber is connected to a compressed gas supply source, and communicated with the plurality of Bernoulli adsorption means. It is characterized by being damped.
- the invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the center of the lower surface of the plate-like member sucked and held by the suction table is pressed upward to form the plate-like shape.
- a pressurizing means for holding the member substantially flat is provided.
- the invention according to claim 6 is the invention according to claim 5, wherein the pressurizing means is constituted by gas injection means for injecting compressed gas upward from a central portion of the adsorption table.
- the invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein an exhaust port for discharging the gas ejected from the Bernoulli adsorption means is provided around the Bernoulli adsorption means. It is provided.
- the invention described in claim 8 is characterized in that, in the invention described in claim 7, the gas discharged from the exhaust port is discharged out of the machine (outdoors) outside the air compressor.
- the plate-like member is a portion that is adsorbed by the Bernoulli adsorbing means and excludes the peripheral portion thereof in a state where the peripheral portion of the lower surface is placed on the adsorption table ( The main part) is sucked and held in a non-contact state floating with respect to the suction table, and the entire lower surface does not come into contact with the suction table as in the past. It is securely held without being caught.
- the plate-like member is more reliably and evenly adsorbed by the plurality of Bernoulli adsorbing means and is held on the adsorption table in a non-contact state.
- the plate-like member is a disk-like member such as a wafer
- the plurality of Bernoulli adsorption means arranged equally on the same circumference of the adsorption table. Therefore, the force S can be obtained to securely and uniformly adsorb the plate-like member and hold it on the adsorption table in a non-contact state.
- the compressed gas supply source force to the chamber formed in the adsorption table can be supplied simultaneously from the chamber to the plurality of Bernoulli adsorption means, Runuy adsorption means force It is possible to generate a negative pressure by ejecting a compressed gas, and the negative pressure makes it possible to adsorb the plate-like member reliably and uniformly and hold it on the adsorption table in a non-contact state.
- the central portion of the plate-like member that is sucked and held in a state in which the peripheral edge of the lower surface is placed on the suction table is caused by the negative pressure by the Bernoulli suction means.
- the central portion in a floating state is recessed and the entire plate member is stagnate and deformed in a concave shape, but the lower surface central portion of the plate member is pressurized upward by a pressurizing means such as a gas injection means.
- a pressurizing means such as a gas injection means.
- the tape can be uniformly applied to the upper surface of the plate-like member.
- the gas containing dust and dust ejected from the Bernoulli adsorption means can be discharged outside the machine (outdoors) outside of the air unit, Can be used in clean nolems.
- FIG. 1 is a plan view of a non-contact type suction holding device according to the present invention
- FIG. 2 is a cross-sectional view taken along line AA in FIG.
- the non-contact type adsorption / holding device 1 is configured to adsorb and hold a thin disc-shaped wafer W (shown by a chain line in Fig. 2) as a plate-like member in a non-contact state.
- the disc-shaped suction table 2 is provided.
- the suction table 2 is configured as a three-layer structure of a small-diameter base plate 3 and two large-diameter upper and lower disk plates 4 and 5 stacked thereon.
- a cylindrical convex portion 3a projects from the body.
- An air injection port 6 is vertically provided at the center of the convex portion 3a of the base plate 3, and the air injection port 6 is connected to a compressed air supply source such as an air compressor (not shown) via a hose or the like.
- a compressed air supply source such as an air compressor (not shown) via a hose or the like.
- the upper surface is open.
- the upper and lower disk plates 4 and 5 are overlapped and joined on the base plate 3, and circular holes 4 a and 5 a are formed at the center of both the disk plates 4 and 5. These circular holes 4a and 5a are respectively fitted in the convex portions 3a projecting from the central portion of the base plate 3.
- the upper and lower disk plates 4 and 5 are connected by four bolts 7 screwed around the circular holes 4a and 5a and eight bolts 8 screwed on the outer peripheral portion.
- the disc plate 5 and the base plate 3 are connected by four bolts 9 screwed around the circular holes 4a and 5a.
- the upper disk plate 4 of the suction table 2 is provided with eight Bernoulli / f suction means 10 on a substantially identical circumference close to the outer periphery thereof, which are equidistant (45 ° equiangular). (Pitch).
- the Berne 1 / f adsorbing means 10 generates a negative pressure by the ejection of gas (air in this embodiment), and is installed in the circular hole 4b formed in the disk plate 4.
- the projecting main body 11 includes twelve exhaust ports 12 (see FIG. 1) that open into a ring-shaped space between the main body 11 and the circular hole 4b.
- a known Berne f adsorption device can be used as the main body 11 of the Berne f adsorption means 10.
- the illustration of the internal structure is omitted, but the upper surface of the main body 11 is formed in a concave curved surface, and the gas is in the center.
- the disk-shaped head (see FIG. 1) provided at the upper part of the circular hole 13 is ejected in the outer circumferential direction along the concave curved surface. ing.
- a ring-shaped space in plan view around the center of the suction table 2 is formed on the inner side in the radial direction of the Berne 1 / f suction means 10 in the suction table 2 (between both disc plates 4 and 5).
- the chamber 15 is configured to supply a hose and the like to a compressed air supply source such as an air compressor (not shown) via four supply ports 16 penetrating the base plate 3 in the vertical direction. Connected through.
- the chamber 15 communicates with each of the Bernoulli adsorption means 10 through a total of eight communication passages 17 extending radially outward from the outer periphery thereof. As shown in FIG.
- the upper and lower disk plates 4 and 5 of the suction table 2 have a ring-shaped connection surface (the lower surface of the upper disk plate 4 and the upper surface of the lower disk plate 5).
- Grooves 4c and 5c are formed, and when both disc plates 4 and 5 are connected by a plurality of bolts 7 and 8 as described above, the chamber 15 is formed by both grooves 4c and 5c,
- the grooves 4a and 5a are hermetically sealed by two seal rings (O-rings) 18, 19 with different diameters.
- a support ring 20 for mounting the lower surface peripheral portion of the wafer W is fixedly provided on the upper surface of the suction table 2 (disk plate 4) in the radial direction of the Bernoulli suction means 10. Les.
- the support ring 20 is made of a soft member such as rubber so as not to damage the outer peripheral edge of the lower surface of the wafer W.
- the lower peripheral edge of the wafer W is placed on the support ring 20, thereby Set W horizontally on suction table 2 as indicated by the chain line in FIG.
- a slight portion in the present embodiment, a portion having a width of 2 to 3 mm
- a compressed air supply source such as an air compressor (not shown) is driven from the above state, and compressed air of a predetermined pressure (0.335 MPa in the present embodiment) is supplied to the base plate 3 by a plurality of supply air.
- the compressed air having a slightly lower pressure (0. IMPa in the present embodiment) is supplied to the air injection port 6 of the base plate 3 from a different path while being supplied from the port 16 to the chamber 15.
- the compressed air supplied to the chamber 15 is simultaneously supplied from each communication path 17 to each Bernoulli suction means 10, and passes through the circular holes 13 formed in the main body 11 of each Bernoulli suction means 10.
- the disk-shaped head 14 provided at the upper part of the circular hole 13, after flowing in the outer circumferential direction along the concave curved surface formed on the upper surface of the main body 11, the plurality of exhaust ports 12 Released into the atmosphere.
- each Bernoulli suction means 10 a negative pressure is generated because the static pressure is reduced by the dynamic pressure associated with the flow of compressed air according to Bernoulli's theorem.
- a total of eight bernouli adsorbing means 10 arranged equally on the plate 4) are sucked downward by the negative pressure generated.
- the wafer W is sucked and held on the suction table 2 with its lower surface peripheral edge in close contact with the support ring 20, and the other part (main part) of the wafer W other than the lower surface peripheral edge is the suction table 2. Maintains a floating non-contact state. Therefore, the lower surface of the wafer W can be securely held without being damaged, as the entire lower surface thereof does not come into contact with the suction table 2 as in the prior art.
- the wafer W that is sucked and held in a state in which the peripheral edge of the lower surface is placed on the support ring 20 has a plurality of Bernoulli suction means at the central portion excluding the peripheral edge. Since the suction is caused by the negative pressure due to 0, the central part in the floating state is recessed and the entire wafer W is deformed in a concave shape S, compressed air supplied to the air injection port 6 of the base plate 3 Is injected from the air injection port 6 toward the center of the lower surface of the wafer W, so that the center of the lower surface of the wafer W is pressurized upward by the pressure of the compressed air. .
- the stagnation deformation due to the suction of the wafer W is prevented, and the wafer W is held substantially flat.
- a tape can be uniformly applied to the upper surface of the wafer W.
- the air jetting means for jetting compressed air from the air jetting port 6 formed in the base plate 3 to pressurize the lower surface central portion of the wafer W upward is a pressurization for preventing the wafer W from being squeezed and deformed.
- the means is constituted, a plurality of this kind of pressurizing means may be provided.
- the chamber 15 is formed in the suction table 2, and the chambers 15 are arranged in a plurality of Berne / f suction means 10 arranged equally on the same circumference of the suction table 2. Since the compressed air is supplied simultaneously through the communication path 17 and the thin disk-like wafer W is simultaneously sucked and held by the negative pressure generated in the plurality of Bernoulli suction means 10, the wafer W is surely and evenly layered. Is held on the suction table 2 in a non-contact state.
- FIG. 3 is a side view showing a schematic configuration of the tape applicator.
- the illustrated tape applicator 30 is an apparatus for automatically attaching a dicing tape to the back surface of the wafer W, and is a delivery reel.
- a strip 32 is mounted on 31 in a roll shape.
- the belt-like body 32 is configured by temporarily attaching a dicing tape having a predetermined shape on a release paper.
- the belt-like body 32 is pulled out from the feed reel 31 and guided to a roller 33. After passing through two cups with the driving roller 35, it is guided by the roller 36, led to a peeling plate (not shown) in the vicinity of the pressing roller 37, and folded back at an acute angle by the peeling plate. ing. Then, the belt-like body (release paper) 32 folded back at an acute angle is guided by a roller 38 and passed through two rolls of a roller 39 and a driving roller 40, and then guided by a roller 41 and a scraping roller 42. In this case, the scraping rollers 42 are sequentially scraped and collected.
- the tape applicator 30 is provided with a sensor 43 for optically detecting the end portion of the dicing tape temporarily attached to the strip 32.
- the non-contact type suction holding device 1 is installed on the upper surface thereof.
- the non-contact type adsorption / holding device 1 holds the wafer w in a non-contact state with its circuit surface (surface) facing down, and a ring frame 46 is provided outside the non-contact type adsorption / retention device 1.
- the non-contact type suction holding device 1 is arranged in the ring frame 46, and the upper surface of the ring frame 46 and the upper surface (back surface) of the wafer W are located in substantially the same plane. It is set to be in a state.
- the movable table 44 is moved horizontally to the position indicated by the alternate long and short dash line in FIG. 3 and pulled out, and the non-contact type adsorption / holding device 1 installed on the movable table 44 is pulled out. Wafer W is sucked and held with its circuit side down, and ring frame 46 is set around it. After that, after moving the movable table 44 horizontally to the position shown by the solid line in FIG. 3, the drive rollers 35 and 40 are driven to rotate, and the belt-like body 32 mounted on the delivery reel 31 is sequentially sent out.
- the cylinder unit 45 is driven to move the movable table 44 up to the position of the two-dot chain line, and the strip-like body 32 is peeled off by the peeling plate (not shown). Adhere to a part of the upper surface of ring frame 46. Then, when the movable table 44 is horizontally moved in the left direction in FIG. 3 from that state, the dicing tape of the strip 32 is not peeled off from the release paper. The force is applied to the upper surface of the ring frame 46 and the upper surface (back surface) of the wafer W. Affixed sequentially from one end to the other, the wafer W and ring frame 46 are integrated by dicing tape, and the integrated wafer W and ring frame 46 are transferred to the next process. Is done.
- the wafer W is sucked and held in a non-contact state by the non-contact suction holding device 1 according to the present invention, and a circuit surface on the lower surface thereof.
- the circuit surface is not damaged and the solder bumps formed on the circuit surface are not damaged by excessive pressure.
- the deformation of the wafer W sucked and held by the non-contact type suction holding apparatus 1 according to the present invention is prevented by the pressurizing means including the air injection means, and the wafer W is held substantially flat. Therefore, apply dicing tape evenly on the upper surface (back surface) of the wafer W. This will prevent problems such as bubbles and wrinkles between the upper surface of the wafer W and the dicing tape.
- a plurality of exhaust ports 12 for discharging the air ejected from the Berne 1 / r adsorption means 10 are provided around each Berne 1 / r adsorption means 10.
- the air injected from the Bernoulli adsorption means 10 and filled in the sealed space S can be effectively discharged out of the sealed space S, and as a result, the adsorption action by the Bernoulli effect can be made to act reliably.
- Bernoulli suction means 10 are arranged on the suction table 2, but the number of Bernoulli suction means 10 is arbitrary, and a plate-like member to be sucked and held. If it is decided appropriately according to the size of,.
- the non-contact type suction holding device according to the present invention can be widely used as a device for sucking and holding not only a semiconductor wafer but also any plate-like member in a non-contact state.
- FIG. 1 is a plan view of a non-contact type suction holding apparatus according to the present invention.
- FIG. 2 is a cross-sectional view taken along line AA in FIG.
- FIG. 3 is a side view showing a schematic configuration of the tape applying device.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Manipulator (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/577,146 US20090026676A1 (en) | 2004-10-14 | 2005-06-29 | Non-Contact Type Suction Holding Apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004299507A JP4541824B2 (ja) | 2004-10-14 | 2004-10-14 | 非接触型吸着保持装置 |
JP2004-299507 | 2004-10-14 |
Publications (1)
Publication Number | Publication Date |
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WO2006040858A1 true WO2006040858A1 (ja) | 2006-04-20 |
Family
ID=36148160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/011912 WO2006040858A1 (ja) | 2004-10-14 | 2005-06-29 | 非接触型吸着保持装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090026676A1 (ja) |
JP (1) | JP4541824B2 (ja) |
KR (1) | KR101098025B1 (ja) |
CN (1) | CN100495680C (ja) |
TW (1) | TWI417985B (ja) |
WO (1) | WO2006040858A1 (ja) |
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WO2014084229A1 (ja) * | 2012-11-30 | 2014-06-05 | 株式会社ニコン | 搬送システム、露光装置、搬送方法、露光方法及びデバイス製造方法、並びに吸引装置 |
CN104096980A (zh) * | 2014-06-26 | 2014-10-15 | 长春光华微电子设备工程中心有限公司 | 激光切割真空吸附平台 |
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2005
- 2005-06-29 US US11/577,146 patent/US20090026676A1/en not_active Abandoned
- 2005-06-29 KR KR1020077008361A patent/KR101098025B1/ko active IP Right Grant
- 2005-06-29 CN CNB2005800337584A patent/CN100495680C/zh not_active Expired - Fee Related
- 2005-06-29 WO PCT/JP2005/011912 patent/WO2006040858A1/ja active Application Filing
- 2005-07-22 TW TW094124956A patent/TWI417985B/zh not_active IP Right Cessation
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014084228A1 (ja) * | 2012-11-30 | 2014-06-05 | 株式会社ニコン | 吸引装置、搬入方法、搬送システム及び露光装置、並びにデバイス製造方法 |
WO2014084229A1 (ja) * | 2012-11-30 | 2014-06-05 | 株式会社ニコン | 搬送システム、露光装置、搬送方法、露光方法及びデバイス製造方法、並びに吸引装置 |
CN104096980A (zh) * | 2014-06-26 | 2014-10-15 | 长春光华微电子设备工程中心有限公司 | 激光切割真空吸附平台 |
Also Published As
Publication number | Publication date |
---|---|
JP4541824B2 (ja) | 2010-09-08 |
CN100495680C (zh) | 2009-06-03 |
US20090026676A1 (en) | 2009-01-29 |
KR101098025B1 (ko) | 2011-12-22 |
TW200625503A (en) | 2006-07-16 |
KR20070069162A (ko) | 2007-07-02 |
TWI417985B (zh) | 2013-12-01 |
CN101036221A (zh) | 2007-09-12 |
JP2006114640A (ja) | 2006-04-27 |
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