WO2004096492A1 - ポリッシング装置 - Google Patents
ポリッシング装置 Download PDFInfo
- Publication number
- WO2004096492A1 WO2004096492A1 PCT/JP2004/006138 JP2004006138W WO2004096492A1 WO 2004096492 A1 WO2004096492 A1 WO 2004096492A1 JP 2004006138 W JP2004006138 W JP 2004006138W WO 2004096492 A1 WO2004096492 A1 WO 2004096492A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polishing
- gas
- liquid
- tool
- liquid separation
- Prior art date
Links
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
- B24B37/11—Lapping tools
- B24B37/12—Lapping plates for working plane surfaces
- B24B37/16—Lapping plates for working plane surfaces characterised by the shape of the lapping plate surface, e.g. grooved
Definitions
- the present invention relates to a polishing apparatus, and more particularly to a polishing apparatus for polishing a flat surface of an object to be polished such as a semiconductor wafer.
- CMP chemical mechanical polishing
- a substrate holding member called a top ring or a carrier head or the like for holding a semiconductor wafer.
- an apparatus When polishing a semiconductor wafer using such a polishing apparatus, the semiconductor wafer is held against the polishing tape with a predetermined pressure while the semiconductor wafer is held by the substrate holding device. At this time, the semiconductor wafer is brought into sliding contact with the polishing surface by supplying the polishing liquid to the polishing surface formed on the upper surface of the cloth while the polishing table and the substrate holding device are moved relative to each other. Polished.
- the replacement of the cloth (polishing pad) on the turntable is performed as follows. That is, first, stop the operation of the polishing apparatus and remove the cloth from the polishing table. After that, the adhering substance such as adhesive remaining on the upper surface of the polishing table and the polishing liquid are washed away, and the polishing table is dried. Then, the new cloth is directly stuck on the upper surface of the polishing table with an adhesive or the like, and the work of cloth repositioning is completed.
- the conventional cloth reattaching operation is performed through various steps, there is a disadvantage that the workability is poor.
- the number of production openings per unit time of the polishing device decreases as the time of the work of replacing the cloth increases. Had the disadvantage of
- the present invention has been made in view of the above-described conventional problems, and it is an object of the present invention to provide a polishing apparatus capable of efficiently performing the replacement operation of the polishing pad disposed on the upper surface of the polishing table. I assume.
- the present invention has a polishing table and a polishing tool attached to the upper part of the polishing table, and while the polishing tool is supplied to the polishing tool, the object to be polished is
- the polishing tool preferably includes a polishing pad and a base on which the polishing pad is mounted, and the polishing tool is preferably divided into a plurality of divided bodies.
- the polishing tool can be easily removed from the polishing table by releasing the vacuum in the fluid flow channel. Further, since the separation work of the divided bodies can be performed one by one, the exchange work of the polishing tool (the polishing pad and the base) can be easily performed, and the work efficiency can be improved.
- a preferred embodiment of the present invention is characterized in that the base is made of resin or metal.
- polishing pads and bases are used polishing tools. Therefore, the work of removing the used polishing pad from the base and affixing a new polishing pad on the base, which has caused the distortion of the base, can be omitted.
- the polishing pad and the base are formed of the same material.
- a preferred embodiment of the present invention is characterized in that a gas-liquid separator for separating the polishing liquid and the gas is disposed between the fluid flow path and a vacuum source for forming a vacuum in the fluid flow path.
- the polishing tool composed of a plurality of divided bodies is fixed to the polishing table by the vacuum formed in the fluid channel, but in this configuration, the vacuumed fluid channel is formed in the fluid channel. It is expected that the polishing fluid will flow with the ambient atmosphere gas and the polishing fluid will be sucked into the vacuum source. According to the present invention configured as described above, even when the polishing fluid flows into the fluid flow channel, the polishing fluid is collected by the gas-liquid separator before it is sucked into the vacuum source. Can. This can prevent the polishing liquid from being sucked into the vacuum source.
- a preferred embodiment of the present invention is characterized in that it further comprises a plurality of polishing liquid supply ports for supplying a plurality of polishing liquids.
- FIG. 1 is a schematic cross-sectional view showing a polishing apparatus according to a first embodiment of the present invention.
- FIG. 2A is a plan view showing the cross cartridge shown in FIG. 1
- FIG. 2B is a sectional view of the divided body shown in FIG. 2A
- FIG. 2C is an exploded perspective view of the cross cartridge shown in FIG. is there.
- FIG. 3 is a plan view showing a polishing table according to the first embodiment of the present invention.
- FIG. 4 is a perspective view showing a storage tank for storing cross cartridges according to the first embodiment of the present invention.
- FIG. 5 is a schematic view showing a gas-liquid separation tank according to a second embodiment of the present invention.
- 6A to 6C are diagrams for explaining the operation of the gas-liquid separation tank in the second embodiment of the present invention.
- FIG. 1 is a schematic cross-sectional view showing a polishing apparatus according to a first embodiment of the present invention.
- 2A is a plan view showing the cross cartridge shown in FIG. 1
- FIG. 2B is a cross-sectional view of the divided body shown in FIG. 2A
- FIG. 2C is an exploded perspective view of the cross cartridge shown in FIG. .
- FIG. 3 is a plan view showing a polishing table according to the first embodiment of the present invention.
- Cross cartridge 1 is a cross (polishing pad) 1 0
- base (base) 11 is basically composed of one.
- the upper surface of the cross 10 constitutes a polished surface in sliding contact with the semiconductor wafer W.
- the upper surface of the fixed abrasive plate obtained by solidifying fine abrasive grains (consisting of CeO 2 etc.) with a binder such as resin can be used as a polishing surface.
- the polishing table 20 is connected to a motor (not shown) disposed below the polishing table 20, and is rotatable about its axis as indicated by the arrow. Further, the first polishing liquid supply nozzle (polishing liquid supply port) 22 A is installed above the polishing table 20, and the first polishing liquid supply nozzle 22 A is located on the cloth 10. Polishing fluid (slurry) Q is to be supplied. Further, a second polishing liquid supply nozzle (polishing liquid supply port) 22 B is installed above the polishing table 20, and from this second polishing liquid supply nozzle 22 B, the polishing liquid Q and In this case, different types of polishing liquids are supplied on the cloth 10. The polishing solution to be supplied to the cloth 10 is appropriately selected according to the polishing process.
- the top ring 30 is connected to the top ring shaft 32 and is connected to the motor and the elevating cylinder (not shown) via the top ring shaft 32. As a result, the top ring 30 is vertically movable and rotatable about the top ring shaft 32 as indicated by the arrows. Further, the top ring 30 is provided with an elastic mat 34 such as polyurethane on its lower surface, and the semiconductor wafer W to be polished is held by vacuum or the like on the lower surface of the elastic mat 34.
- an elastic mat 34 such as polyurethane
- the top ring 30 can press the semiconductor wafer W held on its lower surface against the cross 10 at an arbitrary pressure while rotating.
- a guide ring 36 for preventing the semiconductor wafer W from coming off is provided at the lower outer peripheral portion of the top ring 30.
- Top ring 30 and top ring shaft 32 are connected by a universal joint.
- the universal joint portion includes a spherical bearing mechanism 43 that enables the top ring 30 and the top ring shaft 32 to tilt relative to each other, and a rotation transmission mechanism that transmits the rotation of the top ring shaft 32 to the top ring 30. 4 and transmits pressure and rotational force while allowing each other to tilt from the top ring shaft 32 to the top ring 30.
- the semiconductor wafer W held on the lower surface of the top ring 30 is pressed against the cloth 10 on the upper surface of the rotating polishing table 20.
- the polishing liquid Q is supplied onto the cloth 10 from the polishing liquid supply nozzle 22A.
- polishing is performed in a state where the polishing solution Q is present between the surface to be polished (lower surface) of the semiconductor wafer W and the cloth 10.
- the cross cartridge 1 is divided into four divided bodies 1A, IB, 1C, and ID. That is, the cross cartridge 1 has four fan-shaped base pieces 1 1 A, 1 1 B, 1 1 C, 1 ID and the upper surface of these base pieces 1 1 A, 11 B, 1 1 C, 11 D
- the fan-shaped cloth pieces 1 OA, 10 B, 10 C, 10 D are fixed to each with an adhesive or the like.
- the base pieces 1 1 A, 1 1 B, 1 1 C, 1 ID are formed of a hard resin (eg, PVC (polyvinyl chloride)).
- the cross pieces 10 A, 10 B, 10 C, 10 D are abrasive cloths such as resin sheets.
- the base piece may be made of metal such as stainless steel.
- a through hole 12 is formed at the tip on the center side of each base piece 1 1 A, 1 1 B, 1 1 C, 1 ID.
- Pin 13 is pierced. The lower end of the pin 13 is inserted into a penetration hole (not shown) provided in the polishing table 20, and the upper end of the pin 13 is fixed to a fixing member 14 detachably attached to the polishing table 20.
- a fixing member 14 detachably attached to the polishing table 20.
- a fluid flow path 40 is formed inside the polishing table 20.
- the fluid flow path 40 is opened at the upper surface of the polishing table 20, and as shown in FIG. 3, a plurality of openings 40a are formed uniformly over substantially the entire upper surface of the polishing table 20.
- the fluid channel 40 penetrates the polishing table 20, and the lower end of the fluid channel 40 is connected to a gas-liquid separation tank (gas-liquid separator) 42.
- the gas-liquid separation tank 42 is configured to separate the liquid and the gas, store the separated liquid inside, and allow only the gas to pass.
- the gas-liquid separation tank 42 is connected to a vacuum source 45 such as a vacuum pump.
- the vacuum (negative pressure) is formed in the fluid flow channel 40 through the gas-liquid separation tank 42 by driving the pressure sensor.
- the cross cartridge 1 is adsorbed and fixed to the upper surface of the polishing table 20 by the vacuum formed in the fluid flow path 40.
- the work of replacing the cross cartridge 1 configured as described above is performed as follows. That is, first, the top ring 30 is retracted from the polishing table 20 and the rotation of the polishing table 20 is stopped. Next, the vacuum source 45 is stopped, and the vacuum formed in the fluid flow path 40 is released. Thereby, the fixing state of the cross cartridge 1 to the polishing table 20 is released. After that, remove the fixing member 14 and the pin 13 from the polishing table 20 by force, and remove the cross cartridge 1 from the polishing tape 20 by force. Then, place a new cross cartridge (not shown) on the polishing table 20, attach the pins 13 and fixing members 14 to the polishing table 20, and fix the position of the cross cartridge (division body). .
- the cross cartridge 1 is composed of four divisions 1 A, 1 B, 1 C, 1 D, and these four divisions 1 A, 1 B, 1 C, 1 D are polishing tables 20 Since each of the cross cartridges 1 is detachably attached to each of the cross cartridges 1, replacement of the cross cartridge 1 can be performed for each of the divided bodies 1 A,. Therefore, the replacement operation of the cross cartridge 1 becomes easy, and the working efficiency can be improved.
- the cross cartridge is composed of four divided bodies, but may be composed of two or three divided bodies instead.
- the polishing liquid when a vacuum is formed in the fluid flow path 40, the polishing liquid is drawn from the minute gap between the divided bodies 1A, IB, 1C, 1D of the cross cartridge 1, and a gas of the surrounding atmosphere is generated. It may flow into the fluid channel 40 together with the The polishing fluid that has flowed into the fluid flow path 40 is guided by the gas-liquid separation tank 42, and the polishing liquid and the gas are separated in the gas-liquid separation tank 42.
- the separated polishing liquid is stored in the gas-liquid separation tank 42, and only the gas is sucked from the gas-liquid separation tank 42 to the vacuum source 45. Therefore, the polishing liquid is prevented from flowing into the vacuum source 45, whereby the failure of the vacuum source 45 caused by the flowing of the polishing liquid is prevented.
- a plurality of polishing processes can be performed by one polishing apparatus. That is, the semiconductor wafer is polished while supplying the polishing liquid Q from the first polishing liquid supply nozzle 2 2 A to the cloth 10 (first polishing process). Next, the cross cartridge 1 is replaced with another cross cartridge (not shown), and polishing of the semiconductor wafer is performed while supplying a polishing liquid of a type different from the polishing liquid Q from the second polishing liquid supply nozzle 22 B. Do (second polishing process). While the second polishing process is being performed, the cross cartridge 1 used in the first polishing process is stored in the storage tank 46 shown in FIG.
- FIG. 4 is a perspective view showing a storage tank for storing cross cartridges according to the first embodiment of the present invention.
- water 47 is stored in the storage tank 46.
- the divisions 1 A, 1 B, 1 C, 1 D of the cross cartridge 1 used in the first polishing process are transported to the storage tank 46 and immersed in water 47. This prevents the polishing liquid (slurry) adhering on the cloth 10 from drying, and also causes the divided bodies 1 A, 1 B, 1 C, and ID to be attached to the polishing table 20 again. You can reduce the time of 'I award driving.
- FIG. 5 is a schematic view showing a gas-liquid separation tank according to a second embodiment of the present invention.
- 6A to 6C are diagrams for explaining the operation of the gas-liquid separation tank in the second embodiment of the present invention.
- the polishing apparatus according to the present embodiment is different from the polishing apparatus according to the first embodiment in which only one gas-liquid separation tank is provided, in that the polishing apparatus according to the present embodiment includes two gas-liquid separation tanks.
- the redundant description will be omitted.
- the first gas-liquid separation tank 4 2 A and the second gas-liquid separation tank 4 2 B are arranged in parallel, and the fluid flow path 40 through the pipe 50 (figure 1) is connected to each.
- a check valve 5 2, 5 2 is provided in the pipe 50, and the non-return valve 5 2, 5 2 maintains the vacuum formed in the fluid flow path 40.
- the first and second gas-liquid separation tanks 4 2 A and 4 2 B are connected to a vacuum source 45 through pipes 5 4 and 5 6 respectively.
- the pipe 54 connected to the first gas-liquid separation tank 4 2 A is provided with a first valve 5 8 A, and is connected to the second gas-liquid separation tank 4 2 B
- the pipe 56 is provided with a second valve 5 8 B. And, by operating the first and second valves 5 8 A and 5 8 B, the communication state between the first and second gas-liquid separation tanks 4 2 A and 4 2 B and the vacuum source 45 Are independently controllable.
- Each of the first and second gas-liquid separation tanks 4 2 A and 4 2 B is provided with a sensor 60 for detecting whether or not the amount of polishing liquid accumulated inside thereof exceeds a predetermined value. There is. At the lower ends of the first and second gas-liquid separation tanks 4 2 A and 4 2 B, drain pipes 6 2 A and 6 2 B are provided to drain the polishing liquid accumulated inside the first and second gas-liquid separation tanks. At the upper end of the second gas / liquid separation tank 4 2 A, 4 2 B, communication pipes 6 4 A, 6 4 B are provided for connecting the inside and the outside.
- the first drain valve 6 6 A, 6 6 A is provided in the first gas-liquid separation tank 4 2 A and the drain pipe 6 2 A and the communication pipe 6 4 A
- the second gas-liquid separation A second drain valve 6 6 B, 6 6 B is provided in the drain pipe 6 2 B and the communicating pipe 6 4 B connected to the tank 4 2 B.
- the first and second gas-liquid separation tanks 4 2 A, 4 2 The polishing fluid in B is discharged from drain piping 6 2 A, 6 2 B.
- the sensor 60 a liquid level sensor or the like is preferably used.
- FIGS. 6A to 6C The arrows shown in FIGS. 6A to 6C indicate the flow of gas. Also, in FIGS. 6A to 6C, the black valve and the drain valve are in the closed state, and the white valve and the drain valve are in the open state.
- the first valve 5 8 A and the second drain pulp 6 6 B, 6 6 B are closed, the second valve 5 8 B and the first drain valve 6 6 A, 6 6 A is open (hereinafter this state is called S 1). That is, only the second gas-liquid separation tank 42 B communicates with the vacuum source 45. At this time, the polishing liquid accumulated in the first gas-liquid separation tank 42 A is discharged.
- the first drain valve 6 6 A, 6 6 A is closed and the first valley 5 8 A is opened. That is, the first and second valleys 5 8 A and 5 8 B are opened, and the first valley of the valleys 6 6 A and 6 6 .
- the A and second drain valves 6 6 B and 6 6 B are closed (hereinafter, this state is referred to as S 2).
- the first and second gas-liquid separation tanks 4 2 A and 4 2 B communicate with the vacuum source 45. At this time, the polishing fluid is not discharged.
- the second valve 58B is closed and the second drain valves 66B and 66B are opened. That is, the first valve 5 8 A and the second drain valve 6 6 B, 6 6 B are opened, and the second valve 5 8 B and the first drain valve 6 6 A, 6 6 A are closed. (Hereafter, this state is called S3). At this time, the polishing liquid accumulated in the second gas-liquid separation tank 42 B is discharged.
- the second drain valve 6 6 B, 6 6 B is closed.
- the second valve 58 B is opened and the state of S 2 is established.
- the state of S 1 is established. In this way, the discharge operation of the polishing liquid with one cycle of S1, S2, S3, S2, and S1 is performed.
- the vacuum state formed in the fluid flow path 40 can be maintained without breaking it.
- the polishing fluid in the fluid separation tanks 4 2 A and 4 2 B can be discharged. Therefore, it is not necessary to stop the operation of the polishing apparatus in order to discharge the polishing liquid from the gas-liquid separation tank 42 A, 42 B.
- the polishing tool can be easily removed from the polishing table by releasing the vacuum in the fluid flow channel.
- the separation work of the divided bodies can be performed one by one, the work of replacing the polishing tool (the polishing pad and the base) can be easily performed, and the work efficiency can be improved.
- the present invention is applicable to a polishing apparatus for polishing a surface to be polished of an object to be polished such as a semiconductor wafer to be flat.
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)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/555,004 US20070032174A1 (en) | 2003-05-02 | 2004-04-28 | Polishing apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-126955 | 2003-05-02 | ||
JP2003126955A JP2004330326A (ja) | 2003-05-02 | 2003-05-02 | ポリッシング装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004096492A1 true WO2004096492A1 (ja) | 2004-11-11 |
Family
ID=33410358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/006138 WO2004096492A1 (ja) | 2003-05-02 | 2004-04-28 | ポリッシング装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070032174A1 (ja) |
JP (1) | JP2004330326A (ja) |
TW (1) | TW200500168A (ja) |
WO (1) | WO2004096492A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007059661A (ja) * | 2005-08-25 | 2007-03-08 | Sony Corp | 研磨方法および研磨装置 |
JP4680314B1 (ja) * | 2010-02-04 | 2011-05-11 | 東邦エンジニアリング株式会社 | 研磨パッド用補助板およびそれを用いた研磨パッドの再生方法 |
JP5980476B2 (ja) * | 2010-12-27 | 2016-08-31 | 株式会社荏原製作所 | ポリッシング装置およびポリッシング方法 |
JP5795977B2 (ja) * | 2012-03-14 | 2015-10-14 | 株式会社荏原製作所 | 研磨装置 |
JP6190286B2 (ja) * | 2014-02-14 | 2017-08-30 | 株式会社荏原製作所 | 基板保持装置および研磨装置 |
JP2021174914A (ja) * | 2020-04-28 | 2021-11-01 | 株式会社ディスコ | ウェットエッチング方法、及び、ウェットエッチング装置 |
CN112792711B (zh) * | 2020-12-31 | 2022-05-17 | 武汉风帆电化科技股份有限公司 | 一种晶硅片碱抛光装置及抛光工艺 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH106209A (ja) * | 1996-06-21 | 1998-01-13 | Ebara Corp | ポリッシング装置 |
JP2002103262A (ja) * | 2000-09-27 | 2002-04-09 | Nippei Toyama Corp | 半導体ウェーハの吸着装置 |
JP2002110598A (ja) * | 2000-09-26 | 2002-04-12 | Toshiba Corp | Cmp装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6602380B1 (en) * | 1998-10-28 | 2003-08-05 | Micron Technology, Inc. | Method and apparatus for releasably attaching a polishing pad to a chemical-mechanical planarization machine |
US6244931B1 (en) * | 1999-04-02 | 2001-06-12 | Applied Materials, Inc. | Buffer station on CMP system |
US6561881B2 (en) * | 2001-03-15 | 2003-05-13 | Oriol Inc. | System and method for chemical mechanical polishing using multiple small polishing pads |
US6641468B2 (en) * | 2002-03-05 | 2003-11-04 | Promos Technologies Inc | Slurry distributor |
JP2004288727A (ja) * | 2003-03-19 | 2004-10-14 | Seiko Epson Corp | Cmp装置、cmp研磨方法、半導体装置及びその製造方法 |
-
2003
- 2003-05-02 JP JP2003126955A patent/JP2004330326A/ja active Pending
-
2004
- 2004-04-28 US US10/555,004 patent/US20070032174A1/en not_active Abandoned
- 2004-04-28 WO PCT/JP2004/006138 patent/WO2004096492A1/ja active Application Filing
- 2004-04-30 TW TW093112154A patent/TW200500168A/zh unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH106209A (ja) * | 1996-06-21 | 1998-01-13 | Ebara Corp | ポリッシング装置 |
JP2002110598A (ja) * | 2000-09-26 | 2002-04-12 | Toshiba Corp | Cmp装置 |
JP2002103262A (ja) * | 2000-09-27 | 2002-04-09 | Nippei Toyama Corp | 半導体ウェーハの吸着装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2004330326A (ja) | 2004-11-25 |
TW200500168A (en) | 2005-01-01 |
US20070032174A1 (en) | 2007-02-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6220942B1 (en) | CMP platen with patterned surface | |
US6592438B2 (en) | CMP platen with patterned surface | |
US7575503B2 (en) | Vacuum-assisted pad conditioning system | |
KR100687115B1 (ko) | 연마 장치 및 연마 방법 | |
US6860798B2 (en) | Carrier assemblies, planarizing apparatuses including carrier assemblies, and methods for planarizing micro-device workpieces | |
US10183374B2 (en) | Buffing apparatus, and substrate processing apparatus | |
US6835118B2 (en) | Rigid plate assembly with polishing pad and method of using | |
KR20080067563A (ko) | 연마 헤드용 리테이너 링 | |
JP3611404B2 (ja) | ポリッシング装置 | |
TWI732759B (zh) | 濕式基板處理裝置及襯墊件 | |
WO2004096492A1 (ja) | ポリッシング装置 | |
JP2000158324A (ja) | 半導体ウェ―ハの化学機械的平坦化を行うための装置及び方法 | |
KR100773190B1 (ko) | 가동 연마 시트를 이용한 화학 기계 연마 장치 및 방법 | |
JP4353673B2 (ja) | ポリッシング方法 | |
US20150306727A1 (en) | Polishing method and holder | |
US6602119B1 (en) | Dressing apparatus | |
US20040053566A1 (en) | CMP platen with patterned surface | |
JP2003188125A (ja) | ポリッシング装置 | |
JP2000127025A (ja) | ポリッシング装置及び研磨加工方法 | |
JP2007194612A (ja) | 半導体装置または半導体ウェハの製造方法 | |
US20180330956A1 (en) | Chemical mechanical polishing apparatus and control method thereof | |
JP4257017B2 (ja) | ウェーハの研磨装置 | |
WO2003064108A1 (fr) | Touret a polir, dispositif a polir et procede de polissage | |
US6280295B1 (en) | Apparatus and method to polish a wafer using abrasive flow machining | |
JP2000127028A (ja) | ウエハの研磨装置及び研磨パッドの交換方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2007032174 Country of ref document: US Ref document number: 10555004 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 10555004 Country of ref document: US |