CN112706002B - 研磨方法及研磨装置 - Google Patents
研磨方法及研磨装置 Download PDFInfo
- Publication number
- CN112706002B CN112706002B CN202011147586.6A CN202011147586A CN112706002B CN 112706002 B CN112706002 B CN 112706002B CN 202011147586 A CN202011147586 A CN 202011147586A CN 112706002 B CN112706002 B CN 112706002B
- Authority
- CN
- China
- Prior art keywords
- polishing
- substrate
- head
- swing
- stationary
- 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.)
- Active
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 811
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 180
- 230000008859 change Effects 0.000 claims abstract description 53
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 238000007517 polishing process Methods 0.000 claims description 26
- 230000009471 action Effects 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 description 35
- 239000012530 fluid Substances 0.000 description 12
- 239000013256 coordination polymer Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000002002 slurry Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 235000012431 wafers Nutrition 0.000 description 5
- 239000006061 abrasive grain Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 210000004712 air sac Anatomy 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- B24B37/005—Control means for lapping machines or devices
-
- 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
- B24B37/005—Control means for lapping machines or devices
- B24B37/013—Devices or means for detecting lapping completion
-
- 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
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/10—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping
-
- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
-
- 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
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/10—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping
- B24B37/105—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping the workpieces or work carriers being actively moved by a drive, e.g. in a combined rotary and translatory movement
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
-
- 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
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30625—With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
-
- 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
- H01L21/67092—Apparatus for mechanical treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
- H01L22/26—Acting in response to an ongoing measurement without interruption of processing, e.g. endpoint detection, in-situ thickness measurement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-194182 | 2019-10-25 | ||
| JP2019194182A JP7374710B2 (ja) | 2019-10-25 | 2019-10-25 | 研磨方法および研磨装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112706002A CN112706002A (zh) | 2021-04-27 |
| CN112706002B true CN112706002B (zh) | 2024-05-14 |
Family
ID=74701360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011147586.6A Active CN112706002B (zh) | 2019-10-25 | 2020-10-23 | 研磨方法及研磨装置 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US11618123B2 (enExample) |
| EP (1) | EP3812094B1 (enExample) |
| JP (1) | JP7374710B2 (enExample) |
| KR (1) | KR102780283B1 (enExample) |
| CN (1) | CN112706002B (enExample) |
| SG (1) | SG10202010318TA (enExample) |
| TW (1) | TWI875845B (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7443169B2 (ja) * | 2020-06-29 | 2024-03-05 | 株式会社荏原製作所 | 基板処理装置、基板処理方法、および基板処理方法を基板処理装置のコンピュータに実行させるためのプログラムを格納した記憶媒体 |
| WO2022015441A1 (en) * | 2020-07-14 | 2022-01-20 | Applied Materials, Inc. | Methods of detecting non-conforming substrate processing events during chemical mechanical polishing |
| US20240278380A1 (en) * | 2021-06-22 | 2024-08-22 | Ebara Corporation | Polishing method and polishing apparatus |
| JP2024093733A (ja) | 2022-12-27 | 2024-07-09 | 株式会社荏原製作所 | 研磨方法、研磨装置、および記録媒体 |
| CN116604407A (zh) * | 2023-06-26 | 2023-08-18 | 上海中欣晶圆半导体科技有限公司 | 一种中精抛一体化的硅片加工方法 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197417A (ja) * | 1995-01-19 | 1996-08-06 | Ebara Corp | ポリッシングの終点検知方法 |
| JPH09262743A (ja) * | 1996-03-27 | 1997-10-07 | Nec Corp | 研磨終点検出装置および方法 |
| JP2008110471A (ja) * | 2006-10-06 | 2008-05-15 | Ebara Corp | 基板研磨装置、基板研磨方法、基板受取方法 |
| JP2009059828A (ja) * | 2007-08-30 | 2009-03-19 | Tokyo Seimitsu Co Ltd | トルク変化を利用した研磨終端時点検知方法及びその装置 |
| JP2012138442A (ja) * | 2010-12-27 | 2012-07-19 | Ebara Corp | ポリッシング装置およびポリッシング方法 |
| JP2013219248A (ja) * | 2012-04-10 | 2013-10-24 | Ebara Corp | 研磨装置および研磨方法 |
| CN104070445A (zh) * | 2013-03-29 | 2014-10-01 | 株式会社荏原制作所 | 研磨装置及磨损检测方法 |
| US9308618B2 (en) * | 2012-04-26 | 2016-04-12 | Applied Materials, Inc. | Linear prediction for filtering of data during in-situ monitoring of polishing |
| CN107877356A (zh) * | 2016-09-30 | 2018-04-06 | 株式会社荏原制作所 | 研磨系统以及研磨方法 |
| JP2019030915A (ja) * | 2017-08-04 | 2019-02-28 | 東芝メモリ株式会社 | 研磨装置、研磨方法、およびプログラム |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6180020B1 (en) * | 1995-09-13 | 2001-01-30 | Hitachi, Ltd. | Polishing method and apparatus |
| US8353738B2 (en) * | 1998-11-06 | 2013-01-15 | Semcon Tech, Llc | Advanced finishing control |
| US6705930B2 (en) * | 2000-01-28 | 2004-03-16 | Lam Research Corporation | System and method for polishing and planarizing semiconductor wafers using reduced surface area polishing pads and variable partial pad-wafer overlapping techniques |
| US7097534B1 (en) * | 2000-07-10 | 2006-08-29 | Applied Materials, Inc. | Closed-loop control of a chemical mechanical polisher |
| US6494765B2 (en) * | 2000-09-25 | 2002-12-17 | Center For Tribology, Inc. | Method and apparatus for controlled polishing |
| JP2003318140A (ja) | 2002-04-26 | 2003-11-07 | Applied Materials Inc | 研磨方法及び装置 |
| JP4838614B2 (ja) * | 2006-03-29 | 2011-12-14 | 株式会社岡本工作機械製作所 | 半導体基板の平坦化装置および平坦化方法 |
| JP2009028856A (ja) * | 2007-07-27 | 2009-02-12 | Tokyo Seimitsu Co Ltd | トルク変化を利用した研磨終端時点検知方法及びその装置 |
| JP2008091698A (ja) * | 2006-10-03 | 2008-04-17 | Matsushita Electric Ind Co Ltd | 基板処理装置および基板処理方法 |
| US8616935B2 (en) * | 2010-06-02 | 2013-12-31 | Applied Materials, Inc. | Control of overpolishing of multiple substrates on the same platen in chemical mechanical polishing |
| JP6145342B2 (ja) * | 2013-07-12 | 2017-06-07 | 株式会社荏原製作所 | 膜厚測定装置、膜厚測定方法、および膜厚測定装置を備えた研磨装置 |
| JP6030041B2 (ja) * | 2013-11-01 | 2016-11-24 | 株式会社荏原製作所 | 研磨装置および研磨方法 |
| US10029346B2 (en) * | 2015-10-16 | 2018-07-24 | Applied Materials, Inc. | External clamp ring for a chemical mechanical polishing carrier head |
| TW201822953A (zh) * | 2016-09-16 | 2018-07-01 | 美商應用材料股份有限公司 | 基於溝槽深度的電磁感應監控進行的過拋光 |
| CN110352115A (zh) * | 2017-03-06 | 2019-10-18 | 应用材料公司 | 为cmp位置特定研磨(lsp)设计的螺旋及同心圆移动 |
-
2019
- 2019-10-25 JP JP2019194182A patent/JP7374710B2/ja active Active
-
2020
- 2020-10-16 US US17/072,870 patent/US11618123B2/en active Active
- 2020-10-19 SG SG10202010318TA patent/SG10202010318TA/en unknown
- 2020-10-21 KR KR1020200136637A patent/KR102780283B1/ko active Active
- 2020-10-21 TW TW109136371A patent/TWI875845B/zh active
- 2020-10-22 EP EP20203265.2A patent/EP3812094B1/en active Active
- 2020-10-23 CN CN202011147586.6A patent/CN112706002B/zh active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197417A (ja) * | 1995-01-19 | 1996-08-06 | Ebara Corp | ポリッシングの終点検知方法 |
| JPH09262743A (ja) * | 1996-03-27 | 1997-10-07 | Nec Corp | 研磨終点検出装置および方法 |
| JP2008110471A (ja) * | 2006-10-06 | 2008-05-15 | Ebara Corp | 基板研磨装置、基板研磨方法、基板受取方法 |
| JP2009059828A (ja) * | 2007-08-30 | 2009-03-19 | Tokyo Seimitsu Co Ltd | トルク変化を利用した研磨終端時点検知方法及びその装置 |
| JP2012138442A (ja) * | 2010-12-27 | 2012-07-19 | Ebara Corp | ポリッシング装置およびポリッシング方法 |
| JP2013219248A (ja) * | 2012-04-10 | 2013-10-24 | Ebara Corp | 研磨装置および研磨方法 |
| US9308618B2 (en) * | 2012-04-26 | 2016-04-12 | Applied Materials, Inc. | Linear prediction for filtering of data during in-situ monitoring of polishing |
| CN104070445A (zh) * | 2013-03-29 | 2014-10-01 | 株式会社荏原制作所 | 研磨装置及磨损检测方法 |
| CN107877356A (zh) * | 2016-09-30 | 2018-04-06 | 株式会社荏原制作所 | 研磨系统以及研磨方法 |
| JP2018058197A (ja) * | 2016-09-30 | 2018-04-12 | 株式会社荏原製作所 | 研磨装置、及び研磨方法 |
| JP2019030915A (ja) * | 2017-08-04 | 2019-02-28 | 東芝メモリ株式会社 | 研磨装置、研磨方法、およびプログラム |
Also Published As
| Publication number | Publication date |
|---|---|
| US11618123B2 (en) | 2023-04-04 |
| EP3812094B1 (en) | 2024-05-29 |
| JP7374710B2 (ja) | 2023-11-07 |
| TWI875845B (zh) | 2025-03-11 |
| KR20210049683A (ko) | 2021-05-06 |
| TW202128351A (zh) | 2021-08-01 |
| SG10202010318TA (en) | 2021-05-28 |
| US20210170541A1 (en) | 2021-06-10 |
| CN112706002A (zh) | 2021-04-27 |
| KR102780283B1 (ko) | 2025-03-14 |
| JP2021065990A (ja) | 2021-04-30 |
| EP3812094A1 (en) | 2021-04-28 |
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| GR01 | Patent grant |