WO1997040522A1 - Vorrichtung und verfahren zum behandeln von substraten in einem fluid-behälter - Google Patents
Vorrichtung und verfahren zum behandeln von substraten in einem fluid-behälter Download PDFInfo
- Publication number
- WO1997040522A1 WO1997040522A1 PCT/EP1997/001528 EP9701528W WO9740522A1 WO 1997040522 A1 WO1997040522 A1 WO 1997040522A1 EP 9701528 W EP9701528 W EP 9701528W WO 9740522 A1 WO9740522 A1 WO 9740522A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrates
- strip
- holding
- fluid
- fluid container
- 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
- H01L21/67005—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S134/00—Cleaning and liquid contact with solids
- Y10S134/902—Semiconductor wafer
Definitions
- EP-B-0 385 536, US Pat. No. 5,265,184 or DE-A-44 13 077 based on the applicant in the present application are known, the substrates with a substrate receiving device in the fluid container or in a substrate carrier either by means of a 3-point holder or with a 1-point holder and additional guide slots on the inside of the container wall or slots in the walls of a hood.
- the holding of the substrates is limited to a small edge area on the underside of the substrates.
- Another disadvantage of the known arrangements is that if fluid flows rapidly below the substrates into the container, there is a risk that the substrates will be raised or float. As a result, the secure, parallel and spaced holding of the substrate in the substrate receiving device or in a substrate carrier is not guaranteed.
- a device of the type mentioned in which a rod or a plate is placed on flat areas of substrates during the treatment in the fluid container in order to prevent floating of the substrates.
- This rod or plate is only pivoted over the substrates by means of a drive device when they are inserted into the fluid container. Before the substrates are removed from the fluid container, the rod or the plate is again pivoted in order to remove substrates from the fluid container.
- Such an arrangement is very complex, and in particular with regard to the pivoting, a large amount of space is required above the fluid container. Furthermore, the substrates are not held by this rod or this plate during loading and unloading, so that there is a risk that the substrates will lean against and touch one another.
- the invention has for its object to provide a device and a method of the type mentioned, in which substrates having large dimensions during the treatment and / or during the entry and exit into and out of the fluid pool si ⁇ cher be kept.
- the object is achieved according to the invention in that the holding strip lies or remains on the substrates during the entry and / or exit process or during the loading and / or unloading process.
- the holding strip lies or remains on the substrates during the entry and / or exit process or during the loading and / or unloading process.
- the holding strip is connected via appropriate connecting elements to a drive device, for example a stepper motor or a driver, which is connected to the drive device of the substrate receiving device, or the like.
- a drive device for example a stepper motor or a driver, which is connected to the drive device of the substrate receiving device, or the like.
- the holding strip preferably extends over the entire width of the substrate package, so that it holds all substrates of the package.
- the holding strip on the side facing the substrates has recesses, for example notch-like or V-shaped slits, in which the substrate edges lie.
- the recesses ensure that the substrates are held securely and prevent a change in position relative to one another. Even if high capillary forces occur between the substrates, they remain upright and parallel in the package one behind the other and are safely spaced apart. This avoids contact between the substrates on which the
- At least two holding strips are provided, which can be placed spaced apart from one another on upper edge regions of the substrates or of the substrate package.
- the at least two holding strips already define two stopping points, so that the substrate receiving device in the fluid container only has to have one stopping point, which is preferably a knife-like one. Is edge, which is provided for lifting the substrates. Further breakpoints are in this embodiment in
- Fluid containers are not required, so that the fluid container can be made small and thus only requires a small volume of fluid, can be produced inexpensively and can be reliably held with simple means during substrate treatment and during retraction and extension enables.
- the holding strip (s) do not lie on the substrates when they are are immersed in the treatment fluid. Rather, the holding strip (s) is or are held at a predetermined distance, which is preferably 3 to 20 mm, above the surface of the treatment or rinsing fluid, so that the holding strip does not come into contact with the fluid , and is also held so far above the fluid surface that no splashes or drops can get onto the holding strip.
- a predetermined distance which is preferably 3 to 20 mm
- the strip should remain 2 to 20 mm above the fluid surface in order not to get wet .
- the holding bar thus waits for the predetermined distance above the fluid surface to be lifted out of the fluid container. the substrates. The holding strip (s) are then lifted when the substrates are further lifted out.
- the object is achieved by a method in which the holding strip is placed on the substrates during at least part of the insertion and / or extension process or at least part of the loading and / or unloading process is launched.
- the advantages achieved in this way correspond to those previously mentioned in connection with the device according to the invention.
- the following method steps are provided: a) inserting the substrates into the fluid container; b) treating the substrates in the fluid container; c) lifting the substrates from the fluid container; d) placing a holding strip (6) on the upper edge areas of the substrates, which edge areas have already been lifted out of the treatment fluid, and e) further lifting out the substrates together with the
- This method ensures that the holding strip itself does not come into contact with the treatment or rinsing fluid or is wetted, which would have the consequence that the substrates do not dry reliably or only with great effort. Nevertheless, the substrates are held in place by the holding strip provided above the fluid surface after exiting the treatment fluid, that is, when they are already dry, so that the wafers contract and are not touched .
- the tendency for the substrates to approach and touch, particularly when exiting the treatment fluid is due to forces caused by the capillary action of the water between the substrates.
- the holding strip is placed on the edge regions of the substrates which are lifted out of the treatment fluid, preferably by a relative movement between the holding strip and substrates, the holding strip in particular waiting at a predetermined distance above the fluid surface, and the substrates from below on the waiting holding part.
- telebar can be raised.
- the hood which is preferably flooded with a fluid accelerating and improving the drying process, for example with alcohol-containing nitrogen, according to the Marangoni process, has guides in or on its inner walls for the substrates it is advantageous to remove the holding strip from the substrates, for example by further lifting, when the substrates have been inserted into the guides and are held therein.
- the retaining strip is then no longer necessary and may even be disadvantageous.
- the guiding slots of the hood must only extend so far down that they do not come into contact with the fluid.
- the substrates are therefore held at a defined distance from one another by the holding strip in an area above the fluid surface, where the forces arising due to the capillary action of the water between the substrates are greatest, until they reach the guide slots in the guide slots Enter the hood and then be held by them.
- the holding strip when inserting the substrates into the fluid container by lying on the substrates during the loading process. However, this is not necessary if the substrates are inserted into the fluid container together with a substrate carrier, a so-called carrier, and are only lifted out of the substrate carrier and out of the fluid container during the drying process.
- substrates is not only to be understood as wafers, but also other plate-like or disk-shaped parts, such as CDs, masks, LED display boards or the like.
- a fluid container 1 there is a hood 2, which is used, for example, to dry substrates 3, as is described in DE-A-44 13 077 or the unpublished DE-A-195 00 239 or DE-A -196 15 108 by the same applicant.
- the fluid container 1 there is a substrate receiving device 4 with slots or notches 5 in which the schematically indicated substrates 3 are located. Since the design of the substrate receiving device 4 is not the subject of the present invention, an explanation thereof is omitted and, in this respect, the already mentioned DE-A-44 13 077, DE-A-195 46 990 and DE -A-196 15 108.
- a holding strip 6 rests on the top of the substrates 3.
- the holding strip 6 also has recesses in the form of notches or V-shaped incisions 7, in which the upper edges of the substrates 3 are held.
- the holding bar 6 ensures a secure hold of the
- Substrates 3 in an upright, parallel position and prevents contact with the wafer even with large dimensions and a high attraction due to capillary action, in particular with a high packing density or close spacing.
- the holding strip 6 is connected to a slide 8 which slides in or on a rail 9 which is attached or formed on an inside 10 of a fluid wall 11 of the fluid container 1.
- the rail 8 continues in the hood 2 in an upper rail section 12 which is designed in accordance with the rail 9 of the fluid container 1.
- the wafers 3 in the fluid container 1 After the treatment of the wafers 3 in the fluid container 1, they are lifted into the hood 2 by drying the substrate receiving device 4 together with the holding strip 6 lying on the substrates 3 for drying.
- the wafers are lowered into a wafer carrier or carrier, not shown, which is located in the container 1.
- the hood is laterally displaced together with the retaining strip 6 located at the upper end of the hood 2, as indicated by the arrow 13.
- the wafers 3 come free from both the hood and the holding bar 6, so that they can be loaded and unloaded.
- An embodiment is also very advantageous, in particular in connection with the drying process, in which the holding strip does not come into contact with the treatment or drying fluid, but waits above the fluid surface until it removes the substrates when it is lifted out grips the treatment fluid and holds them in their positions parallel to one another.
- Another possible embodiment is to move the holding strip 6 into any position, independently of the movement of the substrate receiving device 4, by means of its own drive device, for example a stepping motor.
- the guiding and moving elements can also be designed to raise and lower the holding strip, depending on the circumstances.
- an embodiment is also conceivable in which the rail is integrated in the wall of the fluid container 1.
Landscapes
- 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)
- Cleaning Or Drying Semiconductors (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97915438A EP1012874A1 (de) | 1996-04-22 | 1997-03-26 | Vorrichtung und verfahren zum behandeln von substraten in einem fluid-behälter |
US09/171,762 US6270585B1 (en) | 1996-04-22 | 1997-03-26 | Device and process for treating substrates in a fluid container |
JP9537649A JP2000500926A (ja) | 1996-04-22 | 1997-03-26 | 流体コンテナ内で基板を処理するための装置および方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19615970 | 1996-04-22 | ||
DE19703646.5 | 1997-01-31 | ||
DE19703646A DE19703646C2 (de) | 1996-04-22 | 1997-01-31 | Vorrichtung und Verfahren zum Behandeln von Substraten in einem Fluid-Behälter |
DE19615970.9 | 1997-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997040522A1 true WO1997040522A1 (de) | 1997-10-30 |
Family
ID=26025011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/001528 WO1997040522A1 (de) | 1996-04-22 | 1997-03-26 | Vorrichtung und verfahren zum behandeln von substraten in einem fluid-behälter |
Country Status (5)
Country | Link |
---|---|
US (1) | US6270585B1 (de) |
EP (1) | EP1012874A1 (de) |
JP (1) | JP2000500926A (de) |
TW (1) | TW493213B (de) |
WO (1) | WO1997040522A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7582180B2 (en) * | 2004-08-19 | 2009-09-01 | Micron Technology, Inc. | Systems and methods for processing microfeature workpieces |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0523836A1 (de) * | 1991-05-31 | 1993-01-20 | Shin-Etsu Handotai Company Limited | Ätztrommel für Scheiben und automatische Umladevorrichtung für Scheiben |
DE4413077A1 (de) * | 1994-04-15 | 1995-10-19 | Steag Micro Tech Gmbh | Verfahren und Vorrichtung zur chemischen Behandlung von Substraten |
US5488964A (en) * | 1991-05-08 | 1996-02-06 | Tokyo Electron Limited | Washing apparatus, and washing method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0829291B2 (ja) * | 1989-08-14 | 1996-03-27 | ホーヤ株式会社 | レンズの染色方法 |
US5672212A (en) * | 1994-07-01 | 1997-09-30 | Texas Instruments Incorporated | Rotational megasonic cleaner/etcher for wafers |
-
1997
- 1997-03-26 JP JP9537649A patent/JP2000500926A/ja active Pending
- 1997-03-26 US US09/171,762 patent/US6270585B1/en not_active Expired - Fee Related
- 1997-03-26 WO PCT/EP1997/001528 patent/WO1997040522A1/de not_active Application Discontinuation
- 1997-03-26 EP EP97915438A patent/EP1012874A1/de not_active Withdrawn
- 1997-04-14 TW TW086104799A patent/TW493213B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5488964A (en) * | 1991-05-08 | 1996-02-06 | Tokyo Electron Limited | Washing apparatus, and washing method |
EP0523836A1 (de) * | 1991-05-31 | 1993-01-20 | Shin-Etsu Handotai Company Limited | Ätztrommel für Scheiben und automatische Umladevorrichtung für Scheiben |
DE4413077A1 (de) * | 1994-04-15 | 1995-10-19 | Steag Micro Tech Gmbh | Verfahren und Vorrichtung zur chemischen Behandlung von Substraten |
Also Published As
Publication number | Publication date |
---|---|
TW493213B (en) | 2002-07-01 |
JP2000500926A (ja) | 2000-01-25 |
EP1012874A1 (de) | 2000-06-28 |
US6270585B1 (en) | 2001-08-07 |
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