WO1999036943A1 - Vorrichtung zur nassbehandlung von substraten - Google Patents
Vorrichtung zur nassbehandlung von substraten Download PDFInfo
- Publication number
- WO1999036943A1 WO1999036943A1 PCT/EP1998/007403 EP9807403W WO9936943A1 WO 1999036943 A1 WO1999036943 A1 WO 1999036943A1 EP 9807403 W EP9807403 W EP 9807403W WO 9936943 A1 WO9936943 A1 WO 9936943A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate carrier
- hold
- holding
- substrates
- elements
- 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
-
- 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
-
- 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
Definitions
- the invention relates to a device for the wet treatment of substrates in a container containing a treatment fluid, the substrates being insertable into the container and into the treatment fluid together with a substrate carrier.
- EP-B-0 385 536 and the unpublished DE-A-197 03 646 describe devices for the wet treatment of substrates in a container containing a treatment fluid, in which the substrates together with a substrate carrier in the container and the treatment fluid can be used.
- the substrates which are, for example, semiconductor wafers, are inserted into the substrate carrier before the wet treatment and subsequently introduced together with the substrate carrier into the container containing the treatment fluid.
- a flow of the treatment fluid is generated in the container to accelerate the wet treatment.
- the substrate carrier will float in the liquid together with the semiconductor wafers, particularly in those cases in which a light substrate carrier and light semiconductor wafers are used.
- This effect is particularly enhanced by the fluid flow generated in the container and directed from bottom to top.
- the floating of the substrate carrier there is the risk that the semiconductor wafers to be treated partially protrude from the treatment fluid during the wet treatment, which means that the semiconductor wafers are not treated uniformly.
- the substrates and the substrate carrier do not remain in a defined provided position so that problem-free application of the substrates and the substrate carrier after the wet treatment is not possible.
- a device for thin-layer or paper chromatography in which a development plate is initially held in a treatment chamber above a solvent in the chamber via a holding rail and holding clips. Filter paper causes the solvent to evaporate within the sealed chamber and saturates the solvent vapor within the chamber. Subsequently, a lower end of the development plate is immersed in the solvent to cause development to take place. In this case, only a lower end of the development plate is immersed in the solvent itself, without the retaining rail or the retaining clips being immersed in the liquid solvent.
- the invention is therefore based on the object of providing a device of the type mentioned at the outset in which floating of the substrate carrier in the treatment fluid is avoided during the wet treatment of substrates.
- the object is achieved according to the invention in that at least one holding-down element which can be brought into engagement with the substrate carrier is provided in the basin, so that the substrate carrier with the suspensions contained therein is held down during the wet treatment. This prevents floating and ensures that the substrates to be treated are completely immersed in the treatment fluid and treated evenly.
- the device enables the use of inlet nozzles with a strong flow, since even with a stronger fluid flow, floating of the substrate carrier is not possible.
- two hold-down elements are provided, which are advantageously arranged on opposite sides of the substrate carrier in order to clamp it between them and to offer it a non-positive hold.
- At least one hold-down element is a spring element which can be easily deflected when the substrate carrier is inserted into the container, in order then to press it against the spring carrier and hold it when the substrate carrier is in the inserted state.
- the spring element can also be deflected by a magnet, in particular an encapsulated electromagnet, in order to avoid friction when the substrate carrier is inserted, or to increase the contact pressure between the substrate carrier and the spring element for a better hold.
- At least one hold-down element is inflatable.
- An inflatable hold-down element is particularly advantageous since friction between the inflatable element during the insertion of the substrate carrier and thus possible particle generation is avoided, since the inflatable hold-down element is pressurized only after the substrate carrier has been inserted and then presses directly against the substrate carrier. This will friction between the substrate carrier and the hold-down element is reduced to a minimum. Furthermore, this bracket is easier and more controllable and is particularly suitable for an automatically controlled system.
- the hold-down element has a projection which engages on the substrate carrier and which preferably has the shape of a dome or tapers to form a defined point of attack.
- the substrate carrier preferably has a recess for engagement with the hold-down element, the projection on the hold-down element and the recess advantageously being of a complementary shape.
- the hold-down element has a pivotable holding member, so that the substrate carrier can first be inserted into the basin and the holding member can subsequently be pivoted, and thus again there is no friction between the holding member and the substrate carrier during insertion.
- the holding member can be pivoted by inflating part of the holding-down element. In this way, particle generation by mechanical drive means is eliminated or at least reduced to a minimum.
- the substrate carrier has a shoulder for engagement with the holding member in order to have a positive one To ensure a secure and defined hold of the substrate carrier.
- Figure 1 is a schematic side view of a substrate in a treatment fluid, which is held down by hold-down elements according to the invention
- Figure 2 shows an alternative embodiment of a hold-down element
- FIG. 3 is a schematic side view like Fig. 1, which shows another embodiment of the invention
- FIG. 4 shows a schematic side view like FIG. 1, which shows a further embodiment of the hold-down elements according to the invention
- Figure 5 is a schematic side view like Fig. 1, which shows yet another embodiment of the hold-down elements according to the invention.
- the same reference numerals designate the same elements of the device for wet treatment of substrates according to the invention.
- 1 shows a substrate carrier 1 with substrates 2 located therein.
- the substrate carrier 1 is inserted into a container (not shown) filled with a treatment fluid 4.
- the substrate carrier 1 has side parts 6 and an upper side 7, which are arranged below the surface 5 of the treatment fluid 4, in order to ensure that the wafers to be treated are completely immersed in the treatment fluid.
- Inflatable hold-down elements hereinafter referred to as holding elements 10, are arranged on opposite sides of the substrate carrier 1, the right holding element 10 being shown in the inflated state, while the left holding element 10 is shown in an unpressurized state and the inflated state by a dashed line Line is indicated.
- the holding elements 10 are each formed by an inflatable balloon 11 and a feed line 12 via which pressure fluid can be guided into the balloon 11. Furthermore, the holding elements 10 are held in a defined position within the container by means of a device, not shown.
- the balloon 11 When the holding elements are depressurized, the balloon 11 has a square shape and is spaced apart from the side part 6 of the substrate carrier 1. In this state, the substrate carrier can therefore be inserted between the holding elements 10 without contact and without friction.
- FIG. 10 An alternative exemplary embodiment of a holding element 10 is shown in FIG.
- the holding element 10 in turn has an inflatable balloon 11, which is shown in the depressurized state, the inflated state being shown with a dashed line.
- the balloon 11 is a projection 14 pointing in the direction of a schematically illustrated side part 6 of the substrate carrier 1.
- the projection 14 tapers to a point and forms a tip 15 which, when the balloon 11 is inflated, presses against a side part 6 of the substrate carrier 1.
- FIG. 3 shows a further embodiment of the holding device according to the invention.
- a substrate carrier 1 containing semiconductor wafer 2 is immersed in a treatment liquid 4 with an upper side 7 and side parts 6. Again, the top 7 of the substrate carrier 1 is located below the surface 5 of the treatment fluid 4.
- a shoulder 16 is formed on each of the side parts 6 of the substrate carrier 1.
- Holding elements 10 are in turn arranged on opposite sides of the substrate carrier 1.
- the holding elements 10 each have a balloon 11 and a holding member 20, which can be pivoted by pressurizing the balloon 11 in the direction of the substrate carrier 1 for engagement with a shoulder 16 of a side part 6.
- FIG. 3 again shows the right holding element 10 in a pressurized state, while the left holding element 10 is shown in a depressurized state.
- both holding elements 10 When the substrate carrier 1 is inserted, both holding elements 10 are depressurized and the holding members 20 are pivoted away from the substrate carrier 1 (as is shown in the case of the left holding element is), so that the substrate carrier can be used freely and without contact with the substrate carrier 1 in the container. After insertion, both holding elements 10 are pressurized so that the holding members 20 pivot towards the substrate carrier 1 and each come into engagement with a shoulder 16 of a side part 6 in order to hold the substrate carrier securely down (as is the case with the right holding element 10 is shown in Figure 3).
- FIG. 4 shows a further embodiment of a holding element according to the invention.
- FIG. 4 shows, similar to FIGS. 1 and 3, a substrate carrier 1 containing semiconductor wafers, which has side parts 6 and an upper side 7.
- the substrate carrier 1 is in turn inserted into a treatment fluid 4 in such a way that the top 7 of the substrate carrier 1 lies below the surface 5 of the treatment fluid 4.
- Holding elements 10 are provided on opposite sides of the substrate carrier 1.
- the holding elements 10 each have a flat spring element 25 which is prestressed in the direction of the substrate carrier 12.
- the spring element 25 has a lower end 26 fixed in the container (not shown) and a free upper end 27. At the free upper end 27 there is a projection 30 in the form of a on the side of the spring element 25 facing the substrate carrier 1 Hilltop trained.
- the substrate carrier 1 When the substrate carrier 1 is inserted into the container, the substrate carrier is inserted between the spring elements 25 in such a way that the respective projections 30 engage with side parts 6 of the substrate carrier and the spring elements 25 slightly extend outwards. be directed to generate a biasing force in the direction of the substrate carrier. This creates a contact pressure between the side parts 6 and the projections 30, so that the substrate carrier is clamped between the holding elements 10.
- the contact pressure should be kept as low as possible so that as little particles as possible are generated during the friction generated during insertion. Nevertheless, the contact pressure should be sufficient to prevent the substrate carrier from floating.
- FIG. 5 shows a further embodiment of a holding element according to the invention.
- the exemplary embodiment according to FIG. 5 has essentially the same basic structure as the exemplary embodiment according to FIG. 4, so that no description is given in this regard.
- the only difference is that a magnet 32 is attached to the rear of the spring elements 25 at the level of the projection 30, and that an electromagnet 34 is arranged in the container, not shown, which is opposite the magnet 32.
- the electromagnet 34 is controlled by a control device, not shown, to attract or repel the magnet 32, or to establish a neutral relationship between the magnets 32, 34.
- the magnets 32, 34 are preferably encapsulated to prevent contamination of the treatment fluid.
- the substrate carrier 1 When the substrate carrier 1 is inserted into the container, the substrate carrier is inserted between the spring elements 25.
- the spring elements 25 are deflected by appropriate control of the electromagnets 34, so that no friction between the projections 30 and the side parts 6 of the substrate during the insertion process. carrier arises.
- the electromagnets 34 are actuated accordingly such that the spring elements 25 are released and move in the direction of the substrate carrier 1.
- the projections 30 of the spring elements 25 come into engagement with the side parts 6 of the substrate carrier 1, and a contact pressure is generated between the side parts 6 and the projections 30, so that the substrate carrier is clamped between the holding elements 10. If the contact pressure generated by the spring action of the spring elements is not sufficient, it can be increased by correspondingly controlling the electromagnets 34.
- the substrate carrier 1 can have a slight recess or a projection in order to enable better engagement between the side parts 6 and the projections 14 or 30.
- the invention was previously explained using a preferred exemplary embodiment. However, numerous modifications and refinements are possible for the person skilled in the art without departing from the inventive idea. In particular, other forms of the various holding elements are conceivable, it only being necessary to ensure that the substrate carrier is held down securely. Also, in particular in an application in connection with chip or semiconductor production, care should be taken to ensure that little or no friction is generated when the substrate carrier is inserted, in order to prevent particle generation. Furthermore, the invention is also not limited to the shape of the substrate carrier shown and to the treatment of wafers.
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)
- Weting (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000540562A JP2002510140A (ja) | 1998-01-13 | 1998-11-18 | 基板を湿式処理する装置 |
KR1020007007734A KR20010034121A (ko) | 1998-01-13 | 1998-11-18 | 기판의 습식 처리 장치 |
EP98963481A EP1048058A1 (de) | 1998-01-13 | 1998-11-18 | Vorrichtung zur nassbehandlung von substraten |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19800951.8 | 1998-01-13 | ||
DE19800951A DE19800951A1 (de) | 1998-01-13 | 1998-01-13 | Vorrichtung zur Naßbehandlung von Substraten |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999036943A1 true WO1999036943A1 (de) | 1999-07-22 |
Family
ID=7854462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/007403 WO1999036943A1 (de) | 1998-01-13 | 1998-11-18 | Vorrichtung zur nassbehandlung von substraten |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1048058A1 (de) |
JP (1) | JP2002510140A (de) |
KR (1) | KR20010034121A (de) |
DE (1) | DE19800951A1 (de) |
WO (1) | WO1999036943A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE341097T1 (de) * | 2000-06-15 | 2006-10-15 | Koninkl Philips Electronics Nv | Halter für eine substratkassette und vorrichtung ausgerüstet mit diesem halter |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03156954A (ja) * | 1989-11-15 | 1991-07-04 | Ebara Corp | ウエハキャリヤの洗浄槽に設けられる位置決め装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS521353Y2 (de) * | 1972-10-19 | 1977-01-13 | ||
NL8900480A (nl) * | 1989-02-27 | 1990-09-17 | Philips Nv | Werkwijze en inrichting voor het drogen van substraten na behandeling in een vloeistof. |
-
1998
- 1998-01-13 DE DE19800951A patent/DE19800951A1/de not_active Withdrawn
- 1998-11-18 JP JP2000540562A patent/JP2002510140A/ja active Pending
- 1998-11-18 KR KR1020007007734A patent/KR20010034121A/ko not_active Application Discontinuation
- 1998-11-18 WO PCT/EP1998/007403 patent/WO1999036943A1/de not_active Application Discontinuation
- 1998-11-18 EP EP98963481A patent/EP1048058A1/de not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03156954A (ja) * | 1989-11-15 | 1991-07-04 | Ebara Corp | ウエハキャリヤの洗浄槽に設けられる位置決め装置 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 015, no. 390 (E - 1118) 3 October 1991 (1991-10-03) * |
Also Published As
Publication number | Publication date |
---|---|
JP2002510140A (ja) | 2002-04-02 |
DE19800951A1 (de) | 1999-07-15 |
EP1048058A1 (de) | 2000-11-02 |
KR20010034121A (ko) | 2001-04-25 |
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