JP5220428B2 - 研磨用組成物を用いた研磨方法 - Google Patents
研磨用組成物を用いた研磨方法 Download PDFInfo
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- JP5220428B2 JP5220428B2 JP2008023227A JP2008023227A JP5220428B2 JP 5220428 B2 JP5220428 B2 JP 5220428B2 JP 2008023227 A JP2008023227 A JP 2008023227A JP 2008023227 A JP2008023227 A JP 2008023227A JP 5220428 B2 JP5220428 B2 JP 5220428B2
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- JP
- Japan
- Prior art keywords
- polishing composition
- polishing
- nitrogen
- abrasive grains
- nonionic surfactant
- 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.)
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- 238000005498 polishing Methods 0.000 title claims description 82
- 239000000203 mixture Substances 0.000 title claims description 60
- 238000000034 method Methods 0.000 title claims description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 36
- 229920005591 polysilicon Polymers 0.000 claims description 36
- 239000006061 abrasive grain Substances 0.000 claims description 28
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 23
- 239000002736 nonionic surfactant Substances 0.000 claims description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000011164 primary particle Substances 0.000 claims description 13
- -1 polyoxyethylene Polymers 0.000 claims description 11
- 239000008119 colloidal silica Substances 0.000 claims description 10
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 239000003082 abrasive agent Substances 0.000 claims 1
- 239000003002 pH adjusting agent Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
-
- 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
- B24B37/044—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor characterised by the composition of the lapping agent
-
- 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
- H01L21/04—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
- H01L21/31—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]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Materials Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
本実施形態の研磨用組成物は、窒素含有ノニオン界面活性剤及び砥粒を、必要に応じてpH調整剤とともに、水に混合することにより、pHが9〜12の範囲内になるようにして製造される。従って、研磨用組成物は、窒素含有ノニオン界面活性剤、砥粒及び水を含有し、必要に応じてpH調整剤をさらに含有する。
研磨用組成物中の窒素含有ノニオン界面活性剤の含有量は20ppm以上であることが好ましい。窒素含有ノニオン界面活性剤の含有量が多くなるにつれて、研磨用組成物を用いて研磨された後のポリシリコン膜表面のディッシングの発生は抑制される。この点、研磨用組成物中の窒素含有ノニオン界面活性剤の含有量が20ppm以上であれば、研磨後のポリシリコン膜表面のディッシングの発生を実用上特に好適なレベルにまで抑制することができる。
本実施形態の研磨用組成物を用いてポリシリコン膜を研磨した場合、高いポリシリコン除去速度を得ることできると同時に、研磨後のポリシリコン膜表面のディッシングの発生を強く抑制することができる。従って、本実施形態の研磨用組成物は、ポリシリコンを研磨する用途、特に、基板の上に形成されたポリシリコン膜の一部を除去するための研磨で好適に使用することができる。本実施形態の研磨用組成物を用いることによって上記したような利点が得られる理由は詳細不明であるが、研磨用組成物中に含まれる窒素含有ノニオン界面活性剤によってポリシリコン膜表面が改質されることによりもたらされるものと推察される。
・ 前記実施形態の研磨用組成物は二種類以上の窒素含有ノニオン界面活性剤を含有してもよい。
・ 前記実施形態の研磨用組成物には、必要に応じて、キレート剤や水溶性高分子、窒素含有ノニオン界面活性剤以外の界面活性剤、防腐剤、防黴剤、防錆剤などの添加剤を添加してもよい。
次に、実施例及び比較例を挙げて本発明をさらに具体的に説明する。
A1は、平均一次粒子径が10nmであるコロイダルシリカ、
A2は、平均一次粒子径が30nmであるコロイダルシリカ、
A3は、平均一次粒子径が70nmであるコロイダルシリカ、
A4は、平均一次粒子径が90nmであるコロイダルシリカ、
A5は、平均一次粒子径が130nmであるコロイダルシリカ、
B1は、下記の構造式(1)で表わされるポリオキシエチレンアルキルアミノエーテル(m=5)、
B2は、下記の構造式(2)で表わされるポリオキシエチレン脂肪酸アミド(m=5)、
B3は、下記の構造式(3)で表わされる平均分子量約120万のヒドロシキエチルセルロース(m=2〜3)、
B4は、下記の構造式(4)で表わされるポリオキシエチレンポリオキシプロピレングリコール(m1+m2=25、n=30)、
B5は、下記の構造式(5)で表わされるポリオキシエチレンアルキルエーテル(m=10)を表す。
Claims (1)
- 窒素含有ノニオン界面活性剤及び砥粒を含有し、pHが9〜12であり、
研磨用組成物中の前記窒素含有ノニオン界面活性剤の含有量は20〜500ppmであり、
前記窒素含有ノニオン界面活性剤は、ポリオキシエチレンアルキルアミノエーテルであり、
前記砥粒はコロイダルシリカであり、
前記砥粒の平均一次粒子径は10〜90nmであり、
研磨用組成物中の前記砥粒の含有量は1.0〜5.0質量%である研磨用組成物を用いて、ポリシリコンを研磨することを特徴とする研磨方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008023227A JP5220428B2 (ja) | 2008-02-01 | 2008-02-01 | 研磨用組成物を用いた研磨方法 |
US12/363,004 US20090197414A1 (en) | 2008-02-01 | 2009-01-30 | Polishing Composition and Polishing Method Using The Same |
KR1020090007205A KR101534858B1 (ko) | 2008-02-01 | 2009-01-30 | 연마용 조성물 및 그것을 사용한 연마 방법 |
US13/923,477 US9434046B2 (en) | 2008-02-01 | 2013-06-21 | Polishing composition and polishing method using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008023227A JP5220428B2 (ja) | 2008-02-01 | 2008-02-01 | 研磨用組成物を用いた研磨方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013042551A Division JP5580441B2 (ja) | 2013-03-05 | 2013-03-05 | 研磨用組成物及びそれを用いた研磨方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009187985A JP2009187985A (ja) | 2009-08-20 |
JP5220428B2 true JP5220428B2 (ja) | 2013-06-26 |
Family
ID=40932107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008023227A Active JP5220428B2 (ja) | 2008-02-01 | 2008-02-01 | 研磨用組成物を用いた研磨方法 |
Country Status (3)
Country | Link |
---|---|
US (2) | US20090197414A1 (ja) |
JP (1) | JP5220428B2 (ja) |
KR (1) | KR101534858B1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103620747B (zh) * | 2011-06-14 | 2017-07-28 | 福吉米株式会社 | 研磨用组合物 |
JP5580441B2 (ja) * | 2013-03-05 | 2014-08-27 | 株式会社フジミインコーポレーテッド | 研磨用組成物及びそれを用いた研磨方法 |
US10822524B2 (en) | 2017-12-14 | 2020-11-03 | Rohm And Haas Electronic Materials Cmp Holdings, I | Aqueous compositions of low dishing silica particles for polysilicon polishing |
KR20190074597A (ko) | 2017-12-20 | 2019-06-28 | 주식회사 케이씨텍 | Sti 공정용 연마 슬러리 조성물 |
KR20190074594A (ko) * | 2017-12-20 | 2019-06-28 | 주식회사 케이씨텍 | Sti 공정용 연마 슬러리 조성물 |
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US5352277A (en) * | 1988-12-12 | 1994-10-04 | E. I. Du Pont De Nemours & Company | Final polishing composition |
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US6099604A (en) * | 1997-08-21 | 2000-08-08 | Micron Technology, Inc. | Slurry with chelating agent for chemical-mechanical polishing of a semiconductor wafer and methods related thereto |
US6454820B2 (en) * | 2000-02-03 | 2002-09-24 | Kao Corporation | Polishing composition |
JP2002190458A (ja) | 2000-12-21 | 2002-07-05 | Jsr Corp | 化学機械研磨用水系分散体 |
US6974777B2 (en) * | 2002-06-07 | 2005-12-13 | Cabot Microelectronics Corporation | CMP compositions for low-k dielectric materials |
TWI256971B (en) * | 2002-08-09 | 2006-06-21 | Hitachi Chemical Co Ltd | CMP abrasive and method for polishing substrate |
TWI307712B (en) * | 2002-08-28 | 2009-03-21 | Kao Corp | Polishing composition |
JP4045180B2 (ja) * | 2002-12-03 | 2008-02-13 | Azエレクトロニックマテリアルズ株式会社 | リソグラフィー用リンス液およびそれを用いたレジストパターン形成方法 |
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-
2008
- 2008-02-01 JP JP2008023227A patent/JP5220428B2/ja active Active
-
2009
- 2009-01-30 US US12/363,004 patent/US20090197414A1/en not_active Abandoned
- 2009-01-30 KR KR1020090007205A patent/KR101534858B1/ko active IP Right Grant
-
2013
- 2013-06-21 US US13/923,477 patent/US9434046B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US9434046B2 (en) | 2016-09-06 |
KR101534858B1 (ko) | 2015-07-07 |
KR20090084723A (ko) | 2009-08-05 |
JP2009187985A (ja) | 2009-08-20 |
US20090197414A1 (en) | 2009-08-06 |
US20130288573A1 (en) | 2013-10-31 |
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