EP0847835B1 - Verfahren und Vorrichtung zum Polieren von Halbleiterscheiben - Google Patents
Verfahren und Vorrichtung zum Polieren von Halbleiterscheiben Download PDFInfo
- Publication number
- EP0847835B1 EP0847835B1 EP97121841A EP97121841A EP0847835B1 EP 0847835 B1 EP0847835 B1 EP 0847835B1 EP 97121841 A EP97121841 A EP 97121841A EP 97121841 A EP97121841 A EP 97121841A EP 0847835 B1 EP0847835 B1 EP 0847835B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polishing
- pressure
- semiconductor wafers
- support plate
- pressure chambers
- 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.)
- Expired - Lifetime
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
- B24B37/30—Work carriers for single side lapping of plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/047—Grinding heads for working on plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/16—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
Definitions
- the invention relates to a method for polishing Semiconductor wafers on a front side of a carrier plate are fixed and with a polishing pot Side surface against a polishing plate covered with a polishing cloth pressed and polished with a certain polishing pressure become.
- the invention also relates to a device which is suitable for carrying out the method.
- planarization of a semiconductor wafer using a chemo-mechanical Polishing is an important processing step in the process flow for the production of a flat, defect-free and smooth semiconductor wafer.
- This polishing step provides the final form in many production processes and thus decisively determining the surface properties Step before reusing the semiconductor wafer as raw material for the production of electrical, electronic and microelectronic components.
- Objectives of Polishing processes are particularly high Flatness and parallelism of the two disc sides, the removal pretreatment of damaged surface layers ("damage removal") and the reduction of the microroughness of the Semiconductor wafer.
- the present invention relates to single-sided polishing a group of several semiconductor wafers ("single side batch polishing ").
- the semiconductor wafers are at this procedure with one side on the front of one Carrier plate mounted by between the side and the Carrier plate a positive and non-positive connection, for example by adhesion, gluing, kitten or vacuum application, will be produced.
- the semiconductor wafers mounted on the support plate so that it is a pattern of concentric rings. After assembly the free sides of the disc with the addition of a polishing agent against a polishing plate over which a polishing cloth is stretched is pressed and polished with a certain polishing pressure.
- polishing plate The carrier plate and the polishing plate are usually used rotated at different speeds.
- the necessary Polishing printing is done by a pressure stamp, which follows Polishing pot ("polishing head") is called on the back transferred to the carrier plate.
- Polishing pot Polishing pot
- a variety of used Polishing machines are designed to span multiple Have polishing pots and, accordingly, several carrier plates be able to record.
- the polishing pressure therefore often does not act uniformly on the semiconductor wafer a because the carrier plate is radial due to its own weight during polishing is deformed or has a certain radial wedge shape due to manufacturing.
- Identical polishing pots can differ in the transfer of the polishing pressure occur, so that the influence of the polishing pot used in the polishing result noticeable.
- Sometimes there is also wear and tear of the polishing cloth The reason for this is that the wheel geometry changes over several polishing runs worsened.
- EP-A-650 806 discloses a method for polishing semiconductor wafers by means of a polishing pot with a side surface against one covered with a polishing cloth Polishing plates are pressed and polished with a certain polishing pressure, before at least one of several individually with the polishing of the semiconductor wafers Pressurizable pressure chambers are pressurized with a certain pressure becomes.
- the present invention solves the problem when polishing semiconductor wafers a one-sided polishing machine an improved equalization of the polishing removal to achieve, so that in particular the wedge of the polished semiconductor wafers low is.
- the invention relates to a method for polishing semiconductor wafers by means of a polishing pot with a side surface against one covered with a polishing cloth Polishing plates are pressed and polished with a certain polishing pressure, before at least one of several individually with the polishing of the semiconductor wafers Pressurizable pressure chambers are pressurized with a certain pressure is characterized in that the semiconductor wafers on a front side a mounting plate and the polishing pressure during the polishing of the semiconductor wafers via elastic contact surfaces of the pressurized pressure chambers is transferred to a back of the carrier plate.
- the invention further relates to a device for carrying out the method, which is defined in claim 7.
- the success of the invention is due to the fact that between the polishing pot and the support plate arranged pressure chambers local pressure differences that for example as a result of unevenness on the back of the carrier plate or result in an elastic deformation of the carrier plate would have compensated.
- the one pressurized Pressure chamber transmitted to the support plate pressure has at any point in the circumferential direction on the carrier plate resting, elastic support surface the same Value.
- a particular advantage of the invention results from that the pressure chambers that are pressurized preferably selected automatically and automatically with Pressure. Individual, depending on the polishing result impacting properties of the carrier plates used and used polishing pots can with this selection be taken into account.
- Figure 1 is a preferred embodiment of the claimed device shown. They are just such Features shown that are necessary to describe the invention are.
- Figures 2a, 2b and 3a, 3b schematically show that Principle of minimizing the wedge when polishing semiconductor wafers according to the invention.
- FIG. 1 is a preferred one Embodiment of a device for performing the Procedure shows.
- the to a carrier plate 1 of a polishing machine facing side of a polishing pot 2 has open channels 3 on that in concentric paths parallel to the circumferential line the carrier plate.
- the illustrated The device is equipped with a total of seven pressure chambers. If a pressure chamber is pressurized by it is filled with a gas or a liquid, so presses a support surface 5 facing the support plate Pressure chamber against the back 6 of the carrier plate.
- the polishing pot 2 is equipped with a vacuum tool 14, with whose help the carrier plate 1 by applying a vacuum V can be sucked in.
- the for filling the pressure chambers with Gas or liquid lines through the polishing pot are not shown in the figure.
- the loading a pressure chamber with pressure is also referred to as “switching on the pressure chamber “and the reverse process as” switching off a pressure chamber ".
- the number of the provided Pressure chambers depend on the diameter of the used carrier plate and according to the width of the contact surface a pressure chamber.
- Preferably 2 to 10 are particularly preferred 2 to 7 pressure chambers are used, their contact surfaces when the pressure chambers are switched on, 10 to 220 mm, especially are preferably 10 to 30 mm wide.
- the level of pressure in on Pressure chambers are preferably chosen so that the polishing pot under no circumstances during the polishing of the semiconductor wafers overcome the gap and damage the carrier plate can. Lowering the polishing pot is particularly preferred to prevent up to the carrier plate by a mechanical barrier. In the exemplary embodiment according to FIG. 1, this is Purpose a stopper 15 integrated in the polishing pot, by the Never effect the height of the gap 7 below a minimum value can sink. Mechanical damage to the carrier plate, which can cause a deterioration in the polishing result, this is safely avoided.
- the device further comprises a system of controllable Valves 8 through which each pressure chamber independently of the rest Pressure chambers can be switched on and off and that the possibility provides for pressure equalization between switched on To reach pressure chambers. Is particularly preferred it to continue to provide a host computer 9, the switching on and switching off the pressure chambers controls fully automatically.
- This master computer is used after a polishing run determined values of the disk geometry, for example with the determined wedge values. Calculated from this the number and position of the pressure chambers to be switched on and causes that the corresponding pressure chambers are switched on automatically or be switched off. It is preferred that the Master computer in the calculation also the influence on the The polishing result is taken into account by the carrier plate used and the polishing pot used in each case by manufacturing-related Peculiarities.
- An identification of the for Coming carrier plates and polishing pots can be used, for example by means of a barcode recognition.
- the host computer then accesses a database in which Offset presets are stored that specify which pressure chambers when using a specific carrier plate or a certain polishing pot or a certain combination of the carrier plate and polishing pot must be switched on or off.
- the offset presets become automatic at regular intervals Evaluation of the polishing result of several previous ones Polishing trips updated.
- the control is done automatically by the master computer 9, which is connected to a measuring device 16.
- the host computer continuously records the actual height of the gap 7 and compares it this with the selected target distance. Is the actual height outside of specified lower and upper limit values with the help of the host computer, the pressure in the pressure chambers 4 changed, so that the polishing pot is raised or lowered until the actual height of the gap 7 in the desired tolerance range lies. Preferred values for the upper and lower limits the tolerance range is 4.2 mm or 3.8 mm.
- the polishing print is preferably with the help of pressure pads 17th set.
- FIG. 2a shows schematically, as by the process in particular can be achieved the polishing result in terms of the wedge shape of polished semiconductor wafers to improve.
- the situation is indicated in FIG. 2a, that polished semiconductor wafers 10a that on the front 11 of a carrier plate 1 are mounted and against one with a Polishing cloth covered polishing plate 13 with a certain Polishing pressure has been pressed and polished, are wedge-shaped.
- the Dikke the semiconductor wafers take towards the center of the carrier plate down, which is why you are from a positive taper speaks.
- FIG. 3a The illustrated Semiconductor wafers 10 are negatively wedge-shaped.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Manipulator (AREA)
Description
| Poliertopf 1 | Poliertopf 2 | |
| Vergleichsserie | 0,7 | 0,6 |
| Testserie A | 0,3 | 0,4 |
| Poliertopf 1 | Poliertopf 2 | Poliertopf 3 | Poliertopf 4 | |
| Testserie B- | -0,2 | -1 | 0,5 | 0,2 |
| Testserie B+ | -0,1 | 0,2 | -0,1 | 0,2 |
| Poliertopf 1 | Poliertopf 2 | Poliertopf 3 | Poliertopf 4 | |
| Testserie C- | -0,5 | -0,1 | 0,1 | 0 |
| Testserie C+ | 0,1 | -0,1 | 0,1 | 0 |
Claims (12)
- Verfahren zum Polieren von Halbleiterscheiben, die mittels eines Poliertopfes mit einer Seitenfläche gegen einen mit einem Poliertuch bespannten Polierteller mit einem bestimmten Polierdruck gedrückt und poliert werden, wobei vor der Politur der Halbleiterscheiben mindestens eine von mehreren einzeln mit Druck beaufschlagbaren Druckkammern mit einem bestimmten Druck beaufschlagt wird, das dadurch gekennzeichnet ist, daß
die Halbleiterscheiben auf einer Vorderseite einer Trägerplatte montiert sind und der Polierdruck während der Politur der Halbleiterscheiben über elastische Auflageflächen der mit Druck beaufschlagten Druckkammern auf eine Rückseite der Trägerplatte übertragen wird. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein Druckausgleich zwischen den mit Druck beaufschlagten Druckkammern herbeigeführt wird, falls mehrere der Druckkammern mit Druck beaufschlagt werden.
- Verfahren nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß vor einer Polierfahrt rechnergestützt und automatisch eine Auswahl der Druckkammern erfolgt, die mit Druck beaufschlagt werden.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß bei der Auswahl der Druckkammern Offset-Vorgaben einbezogen werden, die für die verwendete Trägerplatte und den eingesetzten Poliertopf eine Vorauswahl von Druckkammern vorgeben.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Höhe eines Spaltes zwischen dem Poliertopf und der Rückseite der Trägerplatte während der Politur automatisch geregelt wird, um sie innerhalb eines vorgegebenen Toleranzbereiches zu halten.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß durch eine mechanische Barriere verhindert wird, daß die Höhe des Spaltes einen Minimalwert unterschreiten kann.
- Vorrichtung zum Polieren von Halbleiterscheiben, umfassend eine Trägerplatte mit einer Rückseite und einer Vorderseite, und einen Poliertopf, der die auf der Vorderseite der Trägerplatte fixierten Halbleiterscheiben während der Politur gegen einen mit einem Poliertuch bespannten Polierteller mit einem bestimmten Polierdruck drückt, gekennzeichnet durcha) mehrere, einzeln mit Druck beaufschlagbare Druckkammern, die auf einer zur Rückseite der Trägerplatte weisenden Seite des Polierkopfes in konzentrischen Bahnen angeordnet sind und elastische Auflageflächen besitzen, die während der Politur der Halbleiterscheiben den Polierdruck auf die Rückseite der Trägerplatte übertragen, sofern die zugehörige Druckkammer mit Druck beaufschlagt ist, undb) eine Einrichtung zum Beaufschlagen der Druckkammern mit Druck.
- Vorrichtung nach Anspruch 7, gekennzeichnet durch eine Einrichtung zum Herbeiführen eines Druckausgleichs zwischen den mit Druck beaufschlagten Druckkammern.
- Vorrichtung nach Anspruch 7 oder Anspruch 8, gekennzeichnet durch 2 bis 10 Druckkammern, die Auflageflächen besitzen, die 10 bis 220 mm breit sind.
- Vorrichtung nach einem der Ansprüche 7 bis 9, gekennzeichnet durch einen Leitrechner, der vor einer Polierfahrt die mit Druck zu beaufschlagenden Druckkammern auswählt und die Beaufschlagung dieser Kammern mit Druck automatisch herbeiführt.
- Vorrichtung nach einem der Ansprüche 7 bis 10, gekennzeichnet durch eine mechanische Barriere, durch deren Wirkung ein Spalt zwischen dem Poliertopf und der Rückseite der Trägerplatte eine Mindesthöhe nicht unterschreiten kann.
- Vorrichtung nach einem der Ansprüche 7 bis 11, gekennzeichnet durch ein rechnergestützt arbeitendes Regelungssystem zur Regelung der Höhe eines Spaltes zwischen dem Poliertopf und der Rückseite der Trägerplatte.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19651761 | 1996-12-12 | ||
| DE19651761A DE19651761A1 (de) | 1996-12-12 | 1996-12-12 | Verfahren und Vorrichtung zum Polieren von Halbleiterscheiben |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0847835A1 EP0847835A1 (de) | 1998-06-17 |
| EP0847835B1 true EP0847835B1 (de) | 2001-07-25 |
Family
ID=7814521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97121841A Expired - Lifetime EP0847835B1 (de) | 1996-12-12 | 1997-12-11 | Verfahren und Vorrichtung zum Polieren von Halbleiterscheiben |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5980361A (de) |
| EP (1) | EP0847835B1 (de) |
| JP (1) | JP3150933B2 (de) |
| KR (1) | KR100278027B1 (de) |
| CN (1) | CN1123423C (de) |
| DE (2) | DE19651761A1 (de) |
| SG (1) | SG60162A1 (de) |
| TW (1) | TW411525B (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10210023A1 (de) * | 2002-03-07 | 2003-05-28 | Wacker Siltronic Halbleitermat | Siliciumscheibe und Verfahren zu ihrer Herstellung |
| DE10159833C1 (de) * | 2001-12-06 | 2003-06-18 | Wacker Siltronic Halbleitermat | Verfahren zur Herstellung einer Vielzahl von Halbleiterscheiben |
Families Citing this family (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5700180A (en) | 1993-08-25 | 1997-12-23 | Micron Technology, Inc. | System for real-time control of semiconductor wafer polishing |
| WO1999009588A1 (en) * | 1997-08-21 | 1999-02-25 | Memc Electronic Materials, Inc. | Method of processing semiconductor wafers |
| US5975998A (en) * | 1997-09-26 | 1999-11-02 | Memc Electronic Materials , Inc. | Wafer processing apparatus |
| DE19756536A1 (de) * | 1997-12-18 | 1999-07-01 | Wacker Siltronic Halbleitermat | Verfahren zum Polieren von scheibenförmigen Werkstücken und Vorrichtung zur Durchführung des Verfahrens |
| US6080050A (en) | 1997-12-31 | 2000-06-27 | Applied Materials, Inc. | Carrier head including a flexible membrane and a compliant backing member for a chemical mechanical polishing apparatus |
| JP2000006005A (ja) * | 1998-06-22 | 2000-01-11 | Speedfam Co Ltd | 両面研磨装置 |
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| CN1080619C (zh) * | 1998-08-28 | 2002-03-13 | 台湾积体电路制造股份有限公司 | 化学机械研磨机台 |
| US6231428B1 (en) * | 1999-03-03 | 2001-05-15 | Mitsubishi Materials Corporation | Chemical mechanical polishing head assembly having floating wafer carrier and retaining ring |
| US6368189B1 (en) | 1999-03-03 | 2002-04-09 | Mitsubishi Materials Corporation | Apparatus and method for chemical-mechanical polishing (CMP) head having direct pneumatic wafer polishing pressure |
| DE10009656B4 (de) * | 2000-02-24 | 2005-12-08 | Siltronic Ag | Verfahren zur Herstellung einer Halbleiterscheibe |
| DE10012840C2 (de) * | 2000-03-16 | 2001-08-02 | Wacker Siltronic Halbleitermat | Verfahren zur Herstellung einer Vielzahl von polierten Halbleiterscheiben |
| US6390905B1 (en) * | 2000-03-31 | 2002-05-21 | Speedfam-Ipec Corporation | Workpiece carrier with adjustable pressure zones and barriers |
| US7140956B1 (en) | 2000-03-31 | 2006-11-28 | Speedfam-Ipec Corporation | Work piece carrier with adjustable pressure zones and barriers and a method of planarizing a work piece |
| KR100802866B1 (ko) * | 2000-05-01 | 2008-02-12 | 후지쯔 가부시끼가이샤 | 웨이퍼 연마 장치 및 웨이퍼 연마 방법 |
| US6558232B1 (en) * | 2000-05-12 | 2003-05-06 | Multi-Planar Technologies, Inc. | System and method for CMP having multi-pressure zone loading for improved edge and annular zone material removal control |
| EP1284840A2 (de) * | 2000-05-12 | 2003-02-26 | Multi-Planar Technologies, Inc. | Trägerkopf mit einem pneumatischem diaphragma der einen halterring und eine davon unabhängige multi-region drucksteuerung hat, und verfahren zur dessen anwendung |
| US6506105B1 (en) | 2000-05-12 | 2003-01-14 | Multi-Planar Technologies, Inc. | System and method for pneumatic diaphragm CMP head having separate retaining ring and multi-region wafer pressure control |
| WO2001094075A1 (en) * | 2000-06-08 | 2001-12-13 | Speedfam-Ipec Corporation | Orbital polishing apparatus |
| WO2002009906A1 (en) * | 2000-07-31 | 2002-02-07 | Asml Us, Inc. | Apparatus and method for chemical mechanical polishing of substrates |
| EP1182007A1 (de) * | 2000-08-18 | 2002-02-27 | Fujikoshi Machinery Corporation | Trägerplatte mit elastischem Ringelement |
| US6540590B1 (en) | 2000-08-31 | 2003-04-01 | Multi-Planar Technologies, Inc. | Chemical mechanical polishing apparatus and method having a rotating retaining ring |
| US6527625B1 (en) | 2000-08-31 | 2003-03-04 | Multi-Planar Technologies, Inc. | Chemical mechanical polishing apparatus and method having a soft backed polishing head |
| US6846222B2 (en) * | 2003-03-04 | 2005-01-25 | Hitachi Global Storage Technologies Netherlands, B.V. | Multi-chambered, compliant apparatus for restraining workpiece and applying variable pressure thereto during lapping to improve flatness characteristics of workpiece |
| US20060180486A1 (en) * | 2003-04-21 | 2006-08-17 | Bennett David W | Modular panel and storage system for flat items such as media discs and holders therefor |
| KR100600231B1 (ko) * | 2003-07-12 | 2006-07-13 | 동부일렉트로닉스 주식회사 | 씨엠피 폴리싱 헤드 및 그 동작방법 |
| US20050070205A1 (en) * | 2003-09-30 | 2005-03-31 | Speedfam-Ipec Corporation | Integrated pressure control system for workpiece carrier |
| FR2863771B1 (fr) * | 2003-12-10 | 2007-03-02 | Soitec Silicon On Insulator | Procede de traitement d'une tranche multicouche presentant un differentiel de caracteristiques thermiques |
| US6986359B2 (en) | 2004-03-09 | 2006-01-17 | Mks Instruments, Inc. | System and method for controlling pressure in remote zones |
| US8037896B2 (en) * | 2004-03-09 | 2011-10-18 | Mks Instruments, Inc. | Pressure regulation in remote zones |
| US20060138681A1 (en) * | 2004-12-27 | 2006-06-29 | Asml Netherlands B.V. | Substrate and lithography process using the same |
| US7984002B2 (en) | 2005-04-29 | 2011-07-19 | Charles River Analytics, Inc. | Automatic source code generation for computing probabilities of variables in belief networks |
| US7207871B1 (en) * | 2005-10-06 | 2007-04-24 | Applied Materials, Inc. | Carrier head with multiple chambers |
| US20070167110A1 (en) * | 2006-01-16 | 2007-07-19 | Yu-Hsiang Tseng | Multi-zone carrier head for chemical mechanical polishing and cmp method thereof |
| JP5408789B2 (ja) * | 2009-03-06 | 2014-02-05 | エルジー・ケム・リミテッド | フロートガラス研磨システム |
| DE102010005904B4 (de) * | 2010-01-27 | 2012-11-22 | Siltronic Ag | Verfahren zur Herstellung einer Halbleiterscheibe |
| JP5303491B2 (ja) | 2010-02-19 | 2013-10-02 | 信越半導体株式会社 | 研磨ヘッド及び研磨装置 |
| CN101797714B (zh) * | 2010-03-23 | 2012-07-11 | 中国电子科技集团公司第四十五研究所 | 抛光机晶片在线清洗装置 |
| KR200471472Y1 (ko) * | 2013-09-30 | 2014-03-12 | 전용준 | 상부 공압제어 어셈블리가 상부에 착·탈 가능하게 장착된 씨엠피 |
| US10328549B2 (en) * | 2013-12-11 | 2019-06-25 | Taiwan Semiconductor Manufacturing Co., Ltd. | Polishing head, chemical-mechanical polishing system and method for polishing substrate |
| KR102323430B1 (ko) * | 2014-03-31 | 2021-11-09 | 가부시키가이샤 에바라 세이사꾸쇼 | 연마 장치 및 연마 방법 |
| JP5608310B1 (ja) * | 2014-04-08 | 2014-10-15 | 株式会社ミラノ製作所 | 研磨盤及び研磨機 |
| DE102015224933A1 (de) | 2015-12-11 | 2017-06-14 | Siltronic Ag | Monokristalline Halbleiterscheibe und Verfahren zur Herstellung einer Halbleiterscheibe |
| CN106312797B (zh) * | 2016-09-21 | 2019-05-17 | 中国科学院上海光学精密机械研究所 | 调节光学元件边缘区域压强分布的抛光组件 |
| US11320843B2 (en) * | 2019-10-17 | 2022-05-03 | Dongguan Hesheng Machinery & Electric Co., Ltd. | Air compression system with pressure detection |
| CN115087518A (zh) * | 2020-06-24 | 2022-09-20 | 应用材料公司 | 具有压电压力控制的抛光承载头 |
| CN116572086B (zh) * | 2023-05-18 | 2025-08-05 | 苏州虹尔德金属制品有限公司 | 一种不锈钢表面抛光装置及其使用方法 |
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-
1996
- 1996-12-12 DE DE19651761A patent/DE19651761A1/de not_active Withdrawn
-
1997
- 1997-09-29 CN CN97118946A patent/CN1123423C/zh not_active Expired - Lifetime
- 1997-12-02 SG SG1997004221A patent/SG60162A1/en unknown
- 1997-12-08 KR KR1019970066694A patent/KR100278027B1/ko not_active Expired - Lifetime
- 1997-12-09 TW TW086118563A patent/TW411525B/zh active
- 1997-12-09 JP JP33894397A patent/JP3150933B2/ja not_active Expired - Lifetime
- 1997-12-09 US US08/987,515 patent/US5980361A/en not_active Expired - Lifetime
- 1997-12-11 EP EP97121841A patent/EP0847835B1/de not_active Expired - Lifetime
- 1997-12-11 DE DE59704120T patent/DE59704120D1/de not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10159833C1 (de) * | 2001-12-06 | 2003-06-18 | Wacker Siltronic Halbleitermat | Verfahren zur Herstellung einer Vielzahl von Halbleiterscheiben |
| DE10210023A1 (de) * | 2002-03-07 | 2003-05-28 | Wacker Siltronic Halbleitermat | Siliciumscheibe und Verfahren zu ihrer Herstellung |
Also Published As
| Publication number | Publication date |
|---|---|
| SG60162A1 (en) | 1999-02-22 |
| DE59704120D1 (de) | 2001-08-30 |
| TW411525B (en) | 2000-11-11 |
| DE19651761A1 (de) | 1998-06-18 |
| JPH10180617A (ja) | 1998-07-07 |
| CN1185028A (zh) | 1998-06-17 |
| KR19980063896A (ko) | 1998-10-07 |
| KR100278027B1 (ko) | 2001-02-01 |
| US5980361A (en) | 1999-11-09 |
| JP3150933B2 (ja) | 2001-03-26 |
| CN1123423C (zh) | 2003-10-08 |
| EP0847835A1 (de) | 1998-06-17 |
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