EP1294958A1 - Waferhalterad mit einer andrückvorrichtung - Google Patents
Waferhalterad mit einer andrückvorrichtungInfo
- Publication number
- EP1294958A1 EP1294958A1 EP01951616A EP01951616A EP1294958A1 EP 1294958 A1 EP1294958 A1 EP 1294958A1 EP 01951616 A EP01951616 A EP 01951616A EP 01951616 A EP01951616 A EP 01951616A EP 1294958 A1 EP1294958 A1 EP 1294958A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel
- holding
- wafer
- holder
- pressing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/76—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches
- H10P72/7604—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a susceptor, stage or support
- H10P72/7608—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a plurality of separate clamping members, e.g. clamping fingers
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/50—Substrate holders
- C23C14/505—Substrate holders for rotation of the substrates
Definitions
- the invention relates to a wafer holding wheel with a pressing device in a wafer coating system.
- Coating substrates with thin, largely homogeneous layers is a problem that needs to be paid close attention.
- disruptive flow effects are a problem in producing sufficient layer homogeneity. This is remedied by rotating the substrate during the sputtering process.
- the same is held in a ring holder and rotated.
- this ring holder has the disadvantage that a considerable proportion of the area remains covered at the edge during the coating, that is to say the substrate has useless area.
- the relatively rigid clamping creates mechanical stress due to the temperatures during sputtering, which are often noticeable through destruction.
- the invention has for its object to provide a wafer holding wheel with which a circular wafer or a substrate with its two end faces can be fully exposed and rotated during the coating process, without impermissible stresses being able to build up in it. Furthermore, the wafer holding wheel should run smoothly in all permissible process conditions.
- the invention is achieved by a wafer holding wheel and a pressing device according to the features of claim 1.
- the holding wheel and the circular support plate attached to it on the inside are made of heat-resistant nickel steel (claim 2).
- the ring gear on the holding wheel and the v-shaped groove therein are coated with a plasma ceramic, preferably with a ceramic made of Zr0 2 or also A1 2 0 3, via a heat-resistant intermediate layer (claim 3).
- a plasma ceramic preferably with a ceramic made of Zr0 2 or also A1 2 0 3
- a heat-resistant intermediate layer (claim 3).
- each of the swiveling holding rods is pivoted into a radial position via an arm for coating, and the arm with its other end on the edge of the carrier plate in an associated pin hung in or hung out to take out the wafer.
- the arm can be rotatably but not releasably attached to the pin and is therefore hung at its other end on a mandrel or hook on the pivotable, associated holding rod or is unhooked for the removal of the wafer. Which solution is preferred will depend on the freedom of handling.
- FIGS. 1 to 3 show: FIG. 1 the wafer holding wheel and the pressing device in the assembly, 2 shows the holding rods attached to the carrier plate, FIG. 3 shows the carrier rods in its holder and FIG. 4 shows a coating.
- the wafer holder wheel here, for example with an outer diameter of 300 mm and a ring gear thickness of 16 mm, is held in position by the three rollers running in the v-shaped groove on the ring gear at rest or during rotation.
- the two upper rollers in Figure 1 are fixed in position with their bracket on the upper frame. You sit left and right of the vertical axis through the center of the wafer holder wheel. From below, the third roller, which is pivotable in or parallel to the plane of the carrier plate, presses the wafer holding wheel upward against the two stationary rollers. This is done via the lever arrangement, which is anchored to the lower part of the frame.
- the one-armed lever is rotatably anchored at one end to the frame, pivotable in or parallel to the plane of the carrier plate.
- the third roller is mounted so that " it sits with its center at a right-angled position of the vertical axis and one-armed lever approximately or exactly on the vertical axis.
- one, shorter arm of the two-armed lever engages It is rotatably mounted on the other side of the vertical axis on the lower part of the frame and can be pivoted in the same plane as the one-armed lever.
- a weight of about 5 N hangs here, so that the third is determined by the lever ratios
- a spring of predetermined spring constants can be hung between the second arm end and the lower frame part. The technically simplest solution is certainly the weight.
- the effective lever lengths are exemplary and are about: - one-armed lever: pivot point - roller 145 mm,
- the position of the drive wheel is basically free and will be such that disabilities are kept to an inevitable minimum.
- the position in Figure 1, above resulted from the geometry of the overall system.
- the small gear on the drive wheel engages in the ring gear of the wafer holder wheel.
- On the outer front edge of the drive wheel is the front sprocket in which the bevel gear engages.
- the bevel gear sits at the end of the drive shaft, which protrudes from the outside through a bushing into the process space and is rotatably supported there in the desired position. This is known technology and is therefore not shown, only indicated by the end of the drive shaft.
- the four sticks are each in a tab.
- This arrangement see Figure 3, then sits on the inner ring on the annular support plate.
- the lower three holding rods in Figure 2 are rigidly radially, the fourth upper in the support plate plane pivoted.
- the fixing bolt which is rotatably mounted here on the inner ring, is pushed with its hole in the free end region onto the mandrel on the holding rod in the case of a radially oriented holding rod, and is thus quickly fixed.
- the groove on the free forehead of the respective tapered holding rod runs in the plane of the carrier plate.
- Figure 4 demonstrates the quality of the coating on a 5 wafer.
- the aim was to achieve a layer thickness of approximately 300 nm.
- the ring holder in the conventional manner, only a circular area with a diameter of approximately 40 mm was reached, then the disruptive change in growth begins.
- the wafer holder with four holding rods on the other hand, a circular area with actually the entire wafer diameter.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10032005A DE10032005B4 (de) | 2000-06-30 | 2000-06-30 | Waferhalterad mit einer Andrückvorrichtung in einer Waferbeschichtungsanlage |
| DE10032005 | 2000-06-30 | ||
| PCT/EP2001/006995 WO2002002841A1 (de) | 2000-06-30 | 2001-06-21 | Waferhalterad mit einer andrückvorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1294958A1 true EP1294958A1 (de) | 2003-03-26 |
Family
ID=7647420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01951616A Withdrawn EP1294958A1 (de) | 2000-06-30 | 2001-06-21 | Waferhalterad mit einer andrückvorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1294958A1 (de) |
| DE (1) | DE10032005B4 (de) |
| WO (1) | WO2002002841A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5947699A (en) * | 1996-07-22 | 1999-09-07 | Lucas Industries Plc | Electromagnetically controlled radial piston pump |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10211827C1 (de) * | 2002-03-16 | 2003-10-30 | Karlsruhe Forschzent | Lagerung eines Substrathalterrades mit darin eingebautem/verankertem Substrathalter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2429270A1 (fr) * | 1978-06-23 | 1980-01-18 | Mongodin Guy | Appareil pour realiser dans une enceinte sous vide, le depot d'une couche mince sur un substrat ou l'erosion de la surface d'une piece |
| DE3725188A1 (de) * | 1987-07-29 | 1989-02-09 | Siemens Ag | Halbautomatischer substrathalter fuer waermeprozesse |
| DE4232902C2 (de) * | 1992-09-30 | 2001-06-28 | Leybold Ag | Substrathalter |
| DE19932338C1 (de) * | 1999-07-10 | 2000-12-14 | Karlsruhe Forschzent | Vorrichtung zum Rotieren eines mit keramischen und metallischen Substanzen zu beschichtenden Substrats in einem Prozeßraum |
-
2000
- 2000-06-30 DE DE10032005A patent/DE10032005B4/de not_active Expired - Fee Related
-
2001
- 2001-06-21 EP EP01951616A patent/EP1294958A1/de not_active Withdrawn
- 2001-06-21 WO PCT/EP2001/006995 patent/WO2002002841A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0202841A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5947699A (en) * | 1996-07-22 | 1999-09-07 | Lucas Industries Plc | Electromagnetically controlled radial piston pump |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002002841A1 (de) | 2002-01-10 |
| DE10032005B4 (de) | 2004-01-15 |
| DE10032005A1 (de) | 2002-01-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20021123 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LOEFFEL, ANDREAS Inventor name: SCHEERER, BERND Inventor name: REINER, JOHANN Inventor name: GRUENINGER, BERND |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20081231 |