JP6858763B2 - 多結晶仕上げを有する半導体ウエハを処理する方法 - Google Patents
多結晶仕上げを有する半導体ウエハを処理する方法 Download PDFInfo
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- JP6858763B2 JP6858763B2 JP2018516823A JP2018516823A JP6858763B2 JP 6858763 B2 JP6858763 B2 JP 6858763B2 JP 2018516823 A JP2018516823 A JP 2018516823A JP 2018516823 A JP2018516823 A JP 2018516823A JP 6858763 B2 JP6858763 B2 JP 6858763B2
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- wafer
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- polished
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- 235000012431 wafers Nutrition 0.000 title claims description 229
- 239000004065 semiconductor Substances 0.000 title claims description 56
- 238000000034 method Methods 0.000 title claims description 47
- 230000008569 process Effects 0.000 title description 5
- 238000005498 polishing Methods 0.000 claims description 133
- 239000002002 slurry Substances 0.000 claims description 58
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 46
- 229910052710 silicon Inorganic materials 0.000 claims description 46
- 239000010703 silicon Substances 0.000 claims description 46
- 239000002245 particle Substances 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000003518 caustics Substances 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical group [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 description 28
- 231100001010 corrosive Toxicity 0.000 description 13
- 230000007547 defect Effects 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 238000005452 bending Methods 0.000 description 5
- 238000005034 decoration Methods 0.000 description 5
- 238000007517 polishing process Methods 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
-
- 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
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/02068—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers
- H01L21/02074—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers the processing being a planarization of conductive layers
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02524—Group 14 semiconducting materials
- H01L21/02532—Silicon, silicon germanium, germanium
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02587—Structure
- H01L21/0259—Microstructure
- H01L21/02595—Microstructure polycrystalline
Description
本願は、米国仮特許出願(第62/235197号、2015年9月30日出願)の優先権を主張しており、この開示は参照により全体としてここに組み込まれる。
Claims (11)
- 半導体ウエハを処理する方法であって、
シリコン層を半導体ウエハに堆積することと、
10未満のpHを有する第1スラリーを半導体ウエハに付与することと、
シリコン層を研磨して、シリコン層を滑らかにすることと、
第2スラリーを半導体ウエハに付与することとを含み、
第2スラリーは、第1スラリーより多い量の腐食剤を含み、10〜12の範囲のpHを有する、方法。 - シリコン層は、多結晶シリコン層であり、
該層は、研磨後に減少した粗さを有し、
多結晶粒子境界は、研磨によって減少している、請求項1記載の方法。 - シリコン層は、第1スラリーを用いて予め定めた時間で研磨され、
予め定めた時間は、1分〜5分の範囲である、請求項1記載の方法。 - 予め定めた時間は、2分である、請求項3記載の方法。
- シリコン層は、第2スラリーを用いて予め定めた時間で研磨され、
予め定めた時間は、5分〜15分の範囲である、請求項1記載の方法。 - 腐食剤は、水酸化カリウムである、請求項1記載の方法。
- シリコン層を研磨する前に、半導体ウエハを洗浄することをさらに含む、請求項1記載の方法。
- シリコン層を研磨する前に、シリコン酸化物層をシリコン層の上に形成することをさらに含み、研磨ステップは、シリコン酸化物層の除去を含む、請求項7記載の方法。
- 半導体ウエハを処理する方法であって、
シリコン層を半導体ウエハに堆積することと、
半導体ウエハを第1ウエハ研磨装置に配置することと、
半導体ウエハが第1ウエハ研磨装置に配置される間に腐食剤無しの第1スラリーを用いてシリコン層を研磨して、シリコン層の第1部分が除去されることと、
半導体ウエハを第2ウエハ研磨装置に配置することと、
半導体ウエハが第2ウエハ研磨装置に配置される間に腐食剤を含有する第2スラリーを用いてシリコン層を研磨して、シリコン層の第2部分が除去されることとを含む方法。 - シリコン層が第1ウエハ研磨装置で研磨される間に、シリコン層の厚さの0.3μm〜1μmが除去される、請求項9記載の方法。
- シリコン層が第2ウエハ研磨装置で研磨される間に、シリコン層の厚さの0.1μm〜0.5μmが除去される、請求項9記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562235197P | 2015-09-30 | 2015-09-30 | |
US62/235,197 | 2015-09-30 | ||
PCT/US2016/054488 WO2017059099A1 (en) | 2015-09-30 | 2016-09-29 | Methods for processing semiconductor wafers having a polycrystalline finish |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018537844A JP2018537844A (ja) | 2018-12-20 |
JP6858763B2 true JP6858763B2 (ja) | 2021-04-14 |
Family
ID=57124186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018516823A Active JP6858763B2 (ja) | 2015-09-30 | 2016-09-29 | 多結晶仕上げを有する半導体ウエハを処理する方法 |
Country Status (6)
Country | Link |
---|---|
US (2) | US11043395B2 (ja) |
EP (1) | EP3357082A1 (ja) |
JP (1) | JP6858763B2 (ja) |
CN (1) | CN108496242B (ja) |
TW (2) | TW202129764A (ja) |
WO (1) | WO2017059099A1 (ja) |
Family Cites Families (26)
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US4608095A (en) * | 1983-02-14 | 1986-08-26 | Monsanto Company | Gettering |
US5232875A (en) * | 1992-10-15 | 1993-08-03 | Micron Technology, Inc. | Method and apparatus for improving planarity of chemical-mechanical planarization operations |
US5571373A (en) | 1994-05-18 | 1996-11-05 | Memc Electronic Materials, Inc. | Method of rough polishing semiconductor wafers to reduce surface roughness |
JP3240263B2 (ja) * | 1995-09-14 | 2001-12-17 | 株式会社東芝 | 不純物濃縮・分析方法およびこれに用いる装置 |
US5646053A (en) * | 1995-12-20 | 1997-07-08 | International Business Machines Corporation | Method and structure for front-side gettering of silicon-on-insulator substrates |
US6139428A (en) * | 1996-12-17 | 2000-10-31 | Vsli Technology, Inc. | Conditioning ring for use in a chemical mechanical polishing machine |
TW358983B (en) * | 1997-11-15 | 1999-05-21 | Taiwan Semiconductor Mfg Co Ltd | Chemical mechanical grinding method |
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US6268284B1 (en) * | 1998-10-07 | 2001-07-31 | Tokyo Electron Limited | In situ titanium aluminide deposit in high aspect ratio features |
US6447693B1 (en) * | 1998-10-21 | 2002-09-10 | W. R. Grace & Co.-Conn. | Slurries of abrasive inorganic oxide particles and method for polishing copper containing surfaces |
TW494502B (en) * | 1998-12-09 | 2002-07-11 | Applied Materials Inc | Polishing platen rinse for controlled passivation of silicon/polysilicon surfaces |
US6559040B1 (en) * | 1999-10-20 | 2003-05-06 | Taiwan Semiconductor Manufacturing Company | Process for polishing the top surface of a polysilicon gate |
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US6682396B1 (en) * | 2000-04-11 | 2004-01-27 | Taiwan Semiconductor Manufacturing Co., Ltd | Apparatus and method for linear polishing |
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CN100355021C (zh) * | 2002-06-06 | 2007-12-12 | 株式会社荏原制作所 | 衬底处理设备和衬底处理方法 |
US6876565B2 (en) * | 2002-09-30 | 2005-04-05 | Kabushiki Kaisha Toshiba | Semiconductor memory device |
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JP2005072238A (ja) | 2003-08-25 | 2005-03-17 | Matsushita Electric Ind Co Ltd | 半導体装置の製造方法 |
KR100596880B1 (ko) | 2004-09-01 | 2006-07-05 | 동부일렉트로닉스 주식회사 | 반도체 소자의 게이트 형성 방법 |
US20060088976A1 (en) | 2004-10-22 | 2006-04-27 | Applied Materials, Inc. | Methods and compositions for chemical mechanical polishing substrates |
KR100641348B1 (ko) | 2005-06-03 | 2006-11-03 | 주식회사 케이씨텍 | Cmp용 슬러리와 이의 제조 방법 및 기판의 연마 방법 |
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EP2346069A4 (en) * | 2008-11-07 | 2012-06-13 | Asahi Glass Co Ltd | ABRASIVE, POLISHING METHOD AND METHOD FOR PRODUCING AN INTEGRATED SEMICONDUCTOR SWITCHING |
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-
2016
- 2016-09-29 US US15/764,272 patent/US11043395B2/en active Active
- 2016-09-29 CN CN201680063165.0A patent/CN108496242B/zh active Active
- 2016-09-29 JP JP2018516823A patent/JP6858763B2/ja active Active
- 2016-09-29 EP EP16779305.8A patent/EP3357082A1/en not_active Withdrawn
- 2016-09-29 WO PCT/US2016/054488 patent/WO2017059099A1/en active Application Filing
- 2016-09-30 TW TW110113821A patent/TW202129764A/zh unknown
- 2016-09-30 TW TW105131759A patent/TWI771276B/zh active
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2021
- 2021-04-19 US US17/234,101 patent/US20210242035A1/en active Pending
Also Published As
Publication number | Publication date |
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US20180323079A1 (en) | 2018-11-08 |
JP2018537844A (ja) | 2018-12-20 |
EP3357082A1 (en) | 2018-08-08 |
US11043395B2 (en) | 2021-06-22 |
CN108496242A (zh) | 2018-09-04 |
TWI771276B (zh) | 2022-07-21 |
TW201721750A (zh) | 2017-06-16 |
WO2017059099A1 (en) | 2017-04-06 |
TW202129764A (zh) | 2021-08-01 |
CN108496242B (zh) | 2022-09-27 |
US20210242035A1 (en) | 2021-08-05 |
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