WO2001045143A1 - Vorrichtung und verfahren zum behandeln von substraten - Google Patents
Vorrichtung und verfahren zum behandeln von substraten Download PDFInfo
- Publication number
- WO2001045143A1 WO2001045143A1 PCT/EP2000/012428 EP0012428W WO0145143A1 WO 2001045143 A1 WO2001045143 A1 WO 2001045143A1 EP 0012428 W EP0012428 W EP 0012428W WO 0145143 A1 WO0145143 A1 WO 0145143A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diffuser
- treatment
- substrates
- fluid
- distance
- Prior art date
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 235000012431 wafers Nutrition 0.000 description 26
- 239000004065 semiconductor Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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
-
- 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
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/6704—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H01L21/67057—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing with the semiconductor substrates being dipped in baths or vessels
Definitions
- the present invention relates to an apparatus and a method for treating substrates in a treatment tank filled with treatment fluid, in which the fluid is introduced into the treatment tank with a diffuser.
- the substrates can be inserted into the container together with a substrate carrier.
- the substrates e.g. Semiconductor wafers are inserted into the substrate carrier before the wet treatment.
- the semiconductor wafers are then inserted together with the substrate carrier into the container containing the treatment fluid.
- treatment fluid is continuously introduced into the treatment basin via a diffuser arranged below the wafers.
- the object of the invention is to provide a device and a method for optimizing the flow conditions, in particular homogenizing the flows on the substrates to be treated.
- this object is achieved in a device of the type mentioned in the introduction in that the distance between the diffuser and the substrates is adjustable.
- Uniform flow conditions in the pool lead to a more uniform treatment of the substrates, which prevents damage to them.
- the distance between the diffuser and the substrates is reduced, it is possible to reduce the radiation pressure of the diffuser, as a result of which a more uniform flow is achieved.
- the diffuser is displaceable in the treatment basin.
- a distance adjustment between diffuser and substrates can be achieved in a simple and efficient manner.
- access to the diffuser for maintenance and / or replacement purposes is made considerably easier due to the movability.
- Such maintenance and / or replacement of the diffuser is necessary, for example, if foreign particles accumulate on the diffuser, which can lead to contamination of the treated substrates.
- Substrate holding devices can generally be moved in the treatment basin for inserting and removing the substrates from the treatment basin. Their positioning for setting the distance is therefore particularly simple.
- the device preferably has a control device for controlling the position of the diffuser and / or the substrate holding device, to make a distance adjustment adapted to the process conditions.
- the diffuser has a diffuser plate which is curved cylindrically to the substrates and has outlet openings, the cylinder axis of which runs perpendicular to the substrate planes.
- the cylindrical, curved diffuser plate enables the treatment fluid to be introduced into the treatment basin over a wide area.
- the inlet pressure can be reduced compared to a diffuser with a smaller inlet area, which leads to better uniformity of the flow.
- the curvature from the diffuser results in individual flows that divide in a fan-like manner. This prevents the currents and eddies from crossing each other, which impair the uniformity of the overall flow.
- the shape of the diffuser plate is preferably symmetrical to its apex.
- the outlet openings are preferably also arranged symmetrically to the apex.
- a baffle plate is preferably provided opposite an inlet of the diffuser.
- the diffuser has a diffuser plate which is curved cylindrically toward the substrates and has outlet openings whose cylinder axis is perpendicular to the substrate planes.
- the cylindrical curvature of the diffuser plate enables treatment fluid to be introduced into the treatment basin over a wide area. Beyond that that there are no intersecting currents and thus eddies, which leads to a very even flow.
- the shape of the diffuser plate is preferably symmetrical to its apex.
- the exit points are preferably also arranged symmetrically to the apex.
- a baffle plate that is arranged opposite an inlet of the diffuser is preferably provided.
- the object on which the invention is based is achieved in a method for treating substrates in a treatment tank filled with treatment fluid, in which the fluid is introduced into the treatment tank with a diffuser, in that the distance between the diffuser and the substrate is dependent on the Process conditions is set.
- the flow settings within the treatment basin, and thus the treatment successes achieved, are homogenized by the distance settings, with changing process conditions being taken into account.
- the distance is set depending on the viscosity of the fluid, since this has a great influence on the flow within the treatment basin.
- the distance is preferably set by moving the diffuser in the treatment basin.
- the distance is set by moving a substrate holding device in the treatment basin.
- the device and the method according to the invention are particularly suitable for the wet treatment of semiconductor wafers, in particular in so-called single treatment tanks or single tank tools, in which different treatment fluids are used within a single tank to treat the wafers.
- the invention is explained in more detail below on the basis of preferred exemplary embodiments with reference to the figures; show it:
- Figure 1 is a schematic sectional view through a treatment device according to the present invention.
- FIG. 2 is a schematic side view of a diffuser according to the present invention
- FIG. 3 shows a schematic side view of the diffuser according to FIG. 2 with a viewing angle rotated by 90 degrees
- Figure 4 is a schematic perspective view of a diffuser according to the present invention.
- Figure 1 shows a device 1 for treating substrates 2, such as Semiconductor wafers with a treatment basin 3 and an overflow 4 surrounding the treatment basin. A large number of wafers are accommodated one behind the other in the treatment basin in the viewing direction according to FIG.
- the treatment basin 3 has side walls 6, 7, which expand conically upwards, and a bottom wall 8.
- a carrier receptacle 10 for accommodating a wafer carrier (not shown in detail) is provided in a lower region of the treatment basin 3.
- a diffuser unit 12 is also provided in the lower region of the treatment basin 3.
- the diffuser unit 12 has a diffuser tube 13 extending through the bottom wall 8 and a diffuser head 14 arranged above the bottom wall 8.
- the diffuser head 14 forms a chamber 16 which is delimited in the direction of the treatment basin by a cylindrically curved diffuser plate 18 with outlet openings 20, which can best be seen in FIGS. 2-4.
- the cylinder axis of the diffuser plate 18 extends into the sheet plane and thus runs perpendicular to the wafers.
- the outlet openings 20 are spaced apart from one another in the curvature direction by a 10-degree angular distance. Of course, other angular distances between the openings 20 are also possible.
- the distance between the outlet openings transverse to the direction of curvature is on the distance of the wafers receivable on the treatment basin is adjusted such that the openings each point into the spaces formed between the wafers in order to provide a targeted flow into these spaces.
- the diffuser plate 18 has a shape symmetrical to its apex 22 in the direction of curvature and the openings 20 are also arranged symmetrically to the apex 22.
- the diffuser tube 13 extends essentially perpendicular to the apex 22 of the curved diffuser plate and has an opening 23 pointing thereon.
- a baffle element 24 is provided in the form of a baffle plate.
- the baffle plate 14 can be fastened to the curved diffuser plate 18, as shown in FIG. 1, or it can be fastened to the diffuser tube 13 or to a base plate opposite the diffuser plate via suitable fastening and spacing elements 26, as shown in FIGS. 4 is shown.
- the diffuser tube 13 is longitudinally displaceable through the bottom 8 of the treatment basin 3, as shown by the double arrow 28 in FIG. 1.
- the diffuser head 14 fixedly attached to it is displaced longitudinally within the treatment basin 3, and the distance between the semiconductor wafers 2 accommodated in the treatment basin 3 and the diffuser plate 18 is changed.
- the diffuser tube is guided through a suitable screw connection 30 and an O-ring 31 and fastened to the basin 3.
- a carrier or carrier (not shown in more detail).
- a treatment fluid such as, for example, diluted TF.ussic acid (DHF)
- DHF diluted TF.ussic acid
- the fluid is introduced through the diffuser tube 13 into the chamber 16 of the diffuser head 14.
- At the Baffle plate 24 deflects the fluic and distributes it evenly in chamber 16. Then es emerges through the openings 20 in the curved diffuser plate 18.
- a fluid flow diverging in a fan-like manner is generated within the treatment basin 3, as is shown schematically in FIG. 1.
- the distance between the wafers 2 and the diffuser unit 12 is adjusted by longitudinally displacing the diffuser tube 13.
- a look-up table can be used, for example, in which various distance values between diffuser plate 18 and wafer 2 are given for different viscosities of the treatment fluid, size and shape of the wafer 2, the wafer carrier and / or the container 3.
- the distance can also be set depending on other process parameters, such as the treatment fluid pressure, whereby a uniform fluid flow is achieved on the wafer surfaces.
- the invention has been described above with reference to a preferred exemplary embodiment, but without being restricted to this specific exemplary embodiment.
- the invention is also not restricted to a device in which the wafers are inserted into the treatment tank with a wafer carrier. Different forms of the diffuser unit and the treatment basin are of course also possible.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00987373A EP1238411A1 (de) | 1999-12-14 | 2000-12-08 | Vorrichtung und verfahren zum behandeln von substraten |
KR1020027007508A KR20020063214A (ko) | 1999-12-14 | 2000-12-08 | 기판 처리 장치 및 방법 |
JP2001545346A JP2003524296A (ja) | 1999-12-14 | 2000-12-08 | 基板を処理するための装置および方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19960241.7 | 1999-12-14 | ||
DE19960241A DE19960241A1 (de) | 1999-12-14 | 1999-12-14 | Vorrichtung und Verfahren zum Behandeln von Substraten |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001045143A1 true WO2001045143A1 (de) | 2001-06-21 |
Family
ID=7932602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/012428 WO2001045143A1 (de) | 1999-12-14 | 2000-12-08 | Vorrichtung und verfahren zum behandeln von substraten |
Country Status (6)
Country | Link |
---|---|
US (1) | US20020189651A1 (de) |
EP (1) | EP1238411A1 (de) |
JP (1) | JP2003524296A (de) |
KR (1) | KR20020063214A (de) |
DE (1) | DE19960241A1 (de) |
WO (1) | WO2001045143A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10313692B4 (de) * | 2003-03-26 | 2005-06-23 | Werner Rietmann | Verfahren zur Oberflächen-und/oder Tiefenbehandlung von zumindest einem Halbleitersubstrat und Tauchbadvorrichtung dazu |
DE102010028883A1 (de) * | 2010-05-11 | 2011-11-17 | Dürr Ecoclean GmbH | Prozessbehälter |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0481506A2 (de) * | 1990-10-18 | 1992-04-22 | Kabushiki Kaisha Toshiba | Substrat-Behandlungsverfahren und Vorrichtung dafür |
US5370142A (en) * | 1992-11-10 | 1994-12-06 | Tokyo Electron Limited | Substrate washing device |
US5482068A (en) * | 1993-08-18 | 1996-01-09 | Tokyo Electron Limited | Cleaning apparatus |
EP0712692A1 (de) * | 1993-06-14 | 1996-05-22 | International Business Machines Corporation | Verbesserte Reinigungsvorrichtung zur Reinigung mittels Aerosol |
US5584310A (en) * | 1993-08-23 | 1996-12-17 | Semitool, Inc. | Semiconductor processing with non-jetting fluid stream discharge array |
US5950327A (en) * | 1996-07-08 | 1999-09-14 | Speedfam-Ipec Corporation | Methods and apparatus for cleaning and drying wafers |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3259049A (en) * | 1962-12-14 | 1966-07-05 | V & A Plating Supplies Inc | Gas agitating device |
NL8900480A (nl) * | 1989-02-27 | 1990-09-17 | Philips Nv | Werkwijze en inrichting voor het drogen van substraten na behandeling in een vloeistof. |
US5069235A (en) * | 1990-08-02 | 1991-12-03 | Bold Plastics, Inc. | Apparatus for cleaning and rinsing wafers |
JPH05291228A (ja) * | 1992-04-07 | 1993-11-05 | Fujitsu Ltd | ウェーハ洗浄装置及び洗浄方法 |
US5503171A (en) * | 1992-12-26 | 1996-04-02 | Tokyo Electron Limited | Substrates-washing apparatus |
WO1995008406A1 (en) * | 1993-09-22 | 1995-03-30 | Legacy Systems, Inc. | Process and apparatus for the treatment of semiconductor wafers in a fluid |
US5656097A (en) * | 1993-10-20 | 1997-08-12 | Verteq, Inc. | Semiconductor wafer cleaning system |
DE19644253A1 (de) * | 1996-10-24 | 1998-05-07 | Steag Micro Tech Gmbh | Vorrichtung zum Behandeln von Substraten |
JPH1126423A (ja) * | 1997-07-09 | 1999-01-29 | Sugai:Kk | 半導体ウエハ等の処理方法並びにその処理装置 |
US6539963B1 (en) * | 1999-07-14 | 2003-04-01 | Micron Technology, Inc. | Pressurized liquid diffuser |
KR20020020081A (ko) * | 2000-09-07 | 2002-03-14 | 윤종용 | 연마 패드 컨디셔너 세정 방법 및 이를 수행하기 위한 장치 |
-
1999
- 1999-12-14 DE DE19960241A patent/DE19960241A1/de not_active Withdrawn
-
2000
- 2000-12-08 US US10/168,354 patent/US20020189651A1/en not_active Abandoned
- 2000-12-08 EP EP00987373A patent/EP1238411A1/de not_active Withdrawn
- 2000-12-08 JP JP2001545346A patent/JP2003524296A/ja active Pending
- 2000-12-08 WO PCT/EP2000/012428 patent/WO2001045143A1/de not_active Application Discontinuation
- 2000-12-08 KR KR1020027007508A patent/KR20020063214A/ko not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0481506A2 (de) * | 1990-10-18 | 1992-04-22 | Kabushiki Kaisha Toshiba | Substrat-Behandlungsverfahren und Vorrichtung dafür |
US5370142A (en) * | 1992-11-10 | 1994-12-06 | Tokyo Electron Limited | Substrate washing device |
EP0712692A1 (de) * | 1993-06-14 | 1996-05-22 | International Business Machines Corporation | Verbesserte Reinigungsvorrichtung zur Reinigung mittels Aerosol |
US5482068A (en) * | 1993-08-18 | 1996-01-09 | Tokyo Electron Limited | Cleaning apparatus |
US5584310A (en) * | 1993-08-23 | 1996-12-17 | Semitool, Inc. | Semiconductor processing with non-jetting fluid stream discharge array |
US5950327A (en) * | 1996-07-08 | 1999-09-14 | Speedfam-Ipec Corporation | Methods and apparatus for cleaning and drying wafers |
Also Published As
Publication number | Publication date |
---|---|
US20020189651A1 (en) | 2002-12-19 |
DE19960241A1 (de) | 2001-07-05 |
EP1238411A1 (de) | 2002-09-11 |
KR20020063214A (ko) | 2002-08-01 |
JP2003524296A (ja) | 2003-08-12 |
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