WO2001046995A1 - Vorrichtung zum behandeln von substraten - Google Patents
Vorrichtung zum behandeln von substraten Download PDFInfo
- Publication number
- WO2001046995A1 WO2001046995A1 PCT/EP2000/012145 EP0012145W WO0146995A1 WO 2001046995 A1 WO2001046995 A1 WO 2001046995A1 EP 0012145 W EP0012145 W EP 0012145W WO 0146995 A1 WO0146995 A1 WO 0146995A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening
- treatment
- suction
- suction openings
- openings
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
- F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
- F16K3/085—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates
-
- 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 device for treating substrates, in particular semiconductor wafers, with a treatment tank which can be filled with different treatment fluids and which is arranged in an essentially closed space which has at least two gas suction openings which are separate from one another.
- An example of this is a treatment of a semiconductor wafer with a mixture of ammonia, hydrogen peroxide and water (SC1), followed by a treatment step in dilute hydrofluoric acid (DHF) and a final rinsing step in deionized water (DIW).
- SC1 dilute hydrofluoric acid
- DIW deionized water
- individual trim flaps are also provided in order to control the amount of gas to be drawn off via the openings.
- the provision of the individual flaps and their control is very complex and therefore associated with high costs.
- the drives for the respective flaps are located in the housing of the STT and are therefore exposed to the sometimes aggressive gases and tend to fail prematurely. It is also difficult to access the flaps and their drives, since they are arranged in the housing, which on the one hand has to be kept clean from any contamination and on the other hand provides very narrow spaces in order to save space.
- DE-A-196 14 653 shows a valve with a housing which has at least one inlet and at least two outlet openings.
- a disk held in a rotationally fixed manner as a valve seat and a disk which is rotatable via an actuating spindle and is attached to the rotationally fixed disk as a rotary slide valve, passage openings being formed in both disks which permit the passage of a medium in any position of the rotating disk.
- DE-A-196 02 106 specifies a rotary disk valve for controlling a fluid flow, which has a first disk fixedly mounted in a housing and provided with throughflow openings and a first disk which is rotatably mounted in the housing and which bears against the first disk and has throughflow openings provided second disc. In a first position the flow openings face each other and release the fluid flow, while in a second position the flow openings are offset from one another and block the fluid flow.
- DE-C-4220070 describes a rotary disk segment valve for controlling the flow rate of a liquid or gaseous medium, in which two disks provided with throughflow openings are arranged such that they can be rotated relative to one another in a housing in such a way that the throughflow openings of both disks face each other in a first position and in which second position are offset from each other. Downstream from the valve, the Flow openings merged again to create a common flow. The media flows are not separated
- a multi-way valve with one inlet and at least two outlets is provided, the valve having a rotatable disc with a through-opening which can be covered with a through-opening of a stationary part in order to accommodate a valve which is present at the inlet end of the valve To direct the medium into different through openings
- DE-C195 26 886 shows a device and a method for methanol reforming, in which the effective length and / or the effective inlet cross-section of a reaction chamber section on the inlet side, which is tempered to high methanol conversion, can be adjusted as a function of the throughput of gas mixture to be reformed Via a rotatable disk with a passage opening which can be covered with one or more inlet openings of reaction tubes.
- Methanol is present at the input end of the device, which is distributed over one or more reaction spaces. At the end of the reaction spaces, the methanol streams are brought together again
- the object of the present invention is to provide a simplified and inexpensive device for opening and closing separate gas suction openings
- this object is achieved in a device of the type mentioned at the outset by a rotatable disk which covers the gas suction openings and has a passage opening with which one of the gas suction openings can be at least partially covered, depending on the treatment fluid used.
- At least one sealing element is provided between the pane and a wall part of the room, which surrounds at least one suction opening in order to provide a good seal of the room atmosphere with respect to the suction openings.
- the sealing element is preferably a PTFE ring which, in addition to the seal, ensures a good sliding movement of the disk with respect to the ring during a rotating movement of the disk.
- the drive device In order to shield the drive for rotating the disk from the partly aggressive atmosphere in the room, it is preferably arranged on one of the side of the disk facing away from the room. Access to the drive is also made easier as it is accessible from the outside.
- the drive device preferably has at least one sensor for detecting the rotational position of the disk in order to enable the rotational position to be set precisely. Like the drive device, the sensor is located outside the chemically aggressive atmosphere and is also easily accessible from the outside.
- a control device is preferably provided for controlling the rotational position of the disk.
- the degree of coverage for precise trimming can preferably be controlled as a function of the suction pressure.
- the passage opening preferably has a shape that tapers in the direction of rotation. This allows the degree of coverage to be set very precisely, particularly at the beginning of the coverage.
- the device preferably has three suction openings arranged in a ring. According to a particularly preferred embodiment of the invention, the suction openings are arranged below the treatment basin.
- Figure 1 is a schematic sectional view through an inventive device for treating substrates.
- 2 shows a schematic top view of a rotatable disk for connecting a space of the treatment device with different suction openings; and
- FIG. 3 shows a perspective view of the pane and the suction openings according to an alternative embodiment of the invention.
- FIG. 1 shows a device 1 for the wet treatment of semiconductor wafers with a closed housing 2 and a treatment basin 3 arranged therein.
- the housing 2 has suitable input / output locks, not shown, for the semiconductor wafers.
- a gas diffuser 5 is provided with a plurality of downwardly directed nozzles in order to generate a downward gas flow in the housing 2.
- the flow emanating from the diffuser 5 is laminar.
- a suction device 7 is provided on the bottom of the housing 2.
- the suction device 7 has three separate suction lines 9, 10, 11 connected to the housing 2, which are connected to the interior of the housing 2 via respective openings 13, 14, 15.
- the lines 9, 10, 11 are each provided with a vacuum source such as for example, a vacuum pump connected to allow suction of the gas atmosphere located in the housing 2.
- Each of the lines 9, 10 and 11 is connected to a different disposal unit for the extracted gas, as will be explained in more detail below.
- the opening 18 has a substantially round main shape, which tapers in a direction of rotation of the disk 17. In the exemplary embodiment according to FIG. 3, the opening 18 has a round shape without a taper.
- the rotatable disc 17 is via a flexible drive shaft 20, which can best be seen in Fig. 3, with a drive unit, not shown, such as. B. connected to a servo motor.
- the rotatable drive shaft 20 extends through the bottom of the housing 2 and is connected in the center to a downward-facing side of the disk 17.
- the openings 13, 14, 15 surrounding sealing elements such.
- B. PTFE rings 23, 24, 25 are provided on which the disc 17 rests.
- the PTFE rings seal the respective lines 9, 10, 1 1 against each other and against the gas atmosphere in the housing 2. They also provide a sliding surface for the rotatable disc 17. In the same way surrounds a sealing element such.
- B. a PTFE ring the flexible shaft 20 in the area between the bottom of the housing 2 and the rotatable disc 17 to protect them from the gas atmosphere in the housing 2.
- the device 1 has a cleaning device, not shown, for the rotatable disc, as well as the related elements, such as. B. the sealing elements.
- the treatment container 3 can be filled with different treatment fluids such as SC1, hydrofluoric acid DHF and deionized water via a diffuser 27, which is connected to a corresponding line 28.
- the treatment basin 3 also has a drain line 29 for draining the treatment fluid.
- the treatment basin 3 is surrounded by an overflow 30, which has a drain line 32.
- the semiconductor wafers To treat the semiconductor wafers, they are first introduced into the housing 2 via the input / output lock, not shown. They are then inserted into the treatment container 3 via a handling device (not shown) and held in it by a holding device (not shown).
- treatment fluid such as SC1 is introduced into the treatment basin 3 via the diffuser 27 and caused to overflow from the treatment tank 3, so that it flows into the overflow 30.
- SC1 chemical is quickly drained from the treatment basin 3 via the line 29 and then hydrofluoric acid (DHF) is introduced into the treatment basin 3 until it flows from the treatment basin 3 into the overflow 30. This flow is maintained for a certain process time and then the hydrofluoric acid is also drained off via line 29.
- DHF hydrofluoric acid
- the treatment basin 3 is filled with deionized water, which likewise flows into the overflow 30 in order to rinse the wafers located in the basin 3.
- the wafers rinsed in this way are then removed from the basin 3 via the handling device (not shown), dried in a suitable manner and transported out of the housing 2.
- a downward gas flow for example an air flow
- the diffuser 5 the air being sucked out again by the suction device 7 at the bottom of the housing 2.
- the suction device 7 at the bottom of the housing 2.
- the opening 18 in the turntable 17 is located above the opening 14 in the bottom of the housing 2.
- the air in the housing 2 is extracted via the line 10 no dangerous gases are generated during the insertion and the rinsing step, the extracted air can be expelled into the environment essentially untreated.
- the opening 18 in the disk 17 is moved over the opening 13 in order to extract air in the housing 2 via the line 9.
- acidic gases are generated that are harmful to the environment and cannot simply be released into the environment. These gases are extracted with the air flow via line 9 and treated in a suitable manner.
- the opening 18 is in the disk 17 above the opening 15 in the bottom of the housing 2, so that suction is carried out via the line 11.
- Hydrofluoric acid treatment in turn produces environmentally harmful gases, which however differ from the gases produced in the SC1 treatment and have to be disposed of in different ways.
- the degree of coverage of the opening 18 with the respective openings 13, 14, 15 in the bottom of the housing 2 is controlled as a function of the negative pressure prevailing in the respective lines 9, 10, 11 and the desired amount of suction.
- the shape of the opening 18, which tapers in the direction of rotation, enables fine control of the overlap size.
- a position detection sensor is provided in the area of the flexible shaft 20, which transmits the position to a control unit, which controls the drive motor accordingly.
- the suction device does not have to be provided on the bottom of the housing 2, rather it is also possible to provide it on the side walls or the upper wall of the housing 2.
- the shapes of the essentially round suction openings can differ from those shown. For example, square shapes could also be provided. If an absolute encoder were used on the motor, the need for a sensor to determine the rotational position of the motor or the rotatable disk would be eliminated.
Landscapes
- Engineering & Computer Science (AREA)
- General 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)
- Mechanical Engineering (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Weting (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001547631A JP2003524297A (ja) | 1999-12-22 | 2000-12-02 | 基板を処理するための装置 |
EP00983207A EP1247291A1 (de) | 1999-12-22 | 2000-12-02 | Vorrichtung zum behandeln von substraten |
KR1020027008041A KR20020063252A (ko) | 1999-12-22 | 2000-12-02 | 기판 처리 장치 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19962169A DE19962169C2 (de) | 1999-12-22 | 1999-12-22 | Vorrichtung zum Behandeln von Substraten |
DE19962169.1 | 1999-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001046995A1 true WO2001046995A1 (de) | 2001-06-28 |
Family
ID=7933909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/012145 WO2001046995A1 (de) | 1999-12-22 | 2000-12-02 | Vorrichtung zum behandeln von substraten |
Country Status (7)
Country | Link |
---|---|
US (1) | US20030029480A1 (de) |
EP (1) | EP1247291A1 (de) |
JP (1) | JP2003524297A (de) |
KR (1) | KR20020063252A (de) |
DE (1) | DE19962169C2 (de) |
TW (1) | TW539573B (de) |
WO (1) | WO2001046995A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105299251A (zh) * | 2014-07-11 | 2016-02-03 | 黄学锋 | 一种可关紧可调整阀门 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8107540U1 (de) * | 1981-03-16 | 1981-09-24 | Hans Grohe Gmbh & Co Kg, 7622 Schiltach | Mehrwegeventil mit einem eingang und mindestens zwei ausgaengen, vorzugsweise vierwegeventil |
US4587989A (en) * | 1985-02-20 | 1986-05-13 | Mayhew Jr John D | Turn disc slide valve |
EP0325200A2 (de) * | 1988-01-18 | 1989-07-26 | Hitachi, Ltd. | Drehbares Ventil |
DE19602106A1 (de) * | 1996-01-22 | 1997-07-24 | Latoschinski Heinz Juergen | Drehscheibenventil |
JPH11344136A (ja) * | 1998-06-02 | 1999-12-14 | Sadayoshi Taketsuna | ローターバルブ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3424200A (en) * | 1966-11-04 | 1969-01-28 | Roto Disc Valve Co | Non-cavitating disc valve |
US5274861A (en) * | 1991-08-02 | 1994-01-04 | Michael Bell | Gray water recycling system |
DE4220070C1 (de) * | 1992-06-19 | 1993-12-16 | Damko Ventiltechnik Gmbh & Co | Drehscheibensegmentventil |
DE4416039C1 (de) * | 1994-05-06 | 1995-08-31 | Freudenberg Carl Fa | Regelventil |
DE19526886C1 (de) * | 1995-07-22 | 1996-09-12 | Daimler Benz Ag | Verfahren und Vorrichtung zur Methanolreformierung |
DE19614653A1 (de) * | 1996-04-13 | 1997-10-16 | Grohe Armaturen Friedrich | Ventil |
US6042729A (en) * | 1998-02-18 | 2000-03-28 | Chau; Yiu Chau | Regeneration of water treatment media |
-
1999
- 1999-12-22 DE DE19962169A patent/DE19962169C2/de not_active Expired - Lifetime
-
2000
- 2000-12-02 JP JP2001547631A patent/JP2003524297A/ja active Pending
- 2000-12-02 WO PCT/EP2000/012145 patent/WO2001046995A1/de active Search and Examination
- 2000-12-02 EP EP00983207A patent/EP1247291A1/de not_active Withdrawn
- 2000-12-02 US US10/169,060 patent/US20030029480A1/en not_active Abandoned
- 2000-12-02 KR KR1020027008041A patent/KR20020063252A/ko not_active Application Discontinuation
- 2000-12-20 TW TW089127352A patent/TW539573B/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8107540U1 (de) * | 1981-03-16 | 1981-09-24 | Hans Grohe Gmbh & Co Kg, 7622 Schiltach | Mehrwegeventil mit einem eingang und mindestens zwei ausgaengen, vorzugsweise vierwegeventil |
US4587989A (en) * | 1985-02-20 | 1986-05-13 | Mayhew Jr John D | Turn disc slide valve |
EP0325200A2 (de) * | 1988-01-18 | 1989-07-26 | Hitachi, Ltd. | Drehbares Ventil |
DE19602106A1 (de) * | 1996-01-22 | 1997-07-24 | Latoschinski Heinz Juergen | Drehscheibenventil |
JPH11344136A (ja) * | 1998-06-02 | 1999-12-14 | Sadayoshi Taketsuna | ローターバルブ |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 03 30 March 2000 (2000-03-30) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105299251A (zh) * | 2014-07-11 | 2016-02-03 | 黄学锋 | 一种可关紧可调整阀门 |
Also Published As
Publication number | Publication date |
---|---|
DE19962169A1 (de) | 2001-07-12 |
TW539573B (en) | 2003-07-01 |
EP1247291A1 (de) | 2002-10-09 |
US20030029480A1 (en) | 2003-02-13 |
KR20020063252A (ko) | 2002-08-01 |
JP2003524297A (ja) | 2003-08-12 |
DE19962169C2 (de) | 2002-05-23 |
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