JP4555944B2 - 半導体平坦化用研磨剤およびその製造方法 - Google Patents
半導体平坦化用研磨剤およびその製造方法 Download PDFInfo
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- JP4555944B2 JP4555944B2 JP2005513167A JP2005513167A JP4555944B2 JP 4555944 B2 JP4555944 B2 JP 4555944B2 JP 2005513167 A JP2005513167 A JP 2005513167A JP 2005513167 A JP2005513167 A JP 2005513167A JP 4555944 B2 JP4555944 B2 JP 4555944B2
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- 239000004065 semiconductor Substances 0.000 title claims description 47
- 238000004519 manufacturing process Methods 0.000 title description 15
- 239000002245 particle Substances 0.000 claims description 84
- 238000005498 polishing Methods 0.000 claims description 67
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 44
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000007787 solid Substances 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 16
- 239000002270 dispersing agent Substances 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 10
- 230000000996 additive effect Effects 0.000 claims description 10
- 239000006228 supernatant Substances 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 9
- 239000011163 secondary particle Substances 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 5
- 239000011362 coarse particle Substances 0.000 description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 17
- 239000008367 deionised water Substances 0.000 description 12
- 229910021641 deionized water Inorganic materials 0.000 description 12
- 235000012431 wafers Nutrition 0.000 description 10
- 238000009826 distribution Methods 0.000 description 9
- 239000002002 slurry Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- 239000003082 abrasive agent Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000058 polyacrylate Polymers 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 238000001132 ultrasonic dispersion Methods 0.000 description 4
- 150000000703 Cerium Chemical class 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011164 primary particle Substances 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 241000403354 Microplus Species 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- GHLITDDQOMIBFS-UHFFFAOYSA-H cerium(3+);tricarbonate Chemical compound [Ce+3].[Ce+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O GHLITDDQOMIBFS-UHFFFAOYSA-H 0.000 description 2
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- -1 acrylic ester Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- WPKYZIPODULRBM-UHFFFAOYSA-N azane;prop-2-enoic acid Chemical compound N.OC(=O)C=C WPKYZIPODULRBM-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229960001759 cerium oxalate Drugs 0.000 description 1
- ZMZNLKYXLARXFY-UHFFFAOYSA-H cerium(3+);oxalate Chemical compound [Ce+3].[Ce+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O ZMZNLKYXLARXFY-UHFFFAOYSA-H 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011158 quantitative evaluation Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 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 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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- 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
-
- 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
- C09K3/1409—Abrasive particles per se
-
- 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
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
- C09K3/1463—Aqueous liquid suspensions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Optical Recording Or Reproduction (AREA)
Description
研磨荷重:30kPa
研磨パッド:ロデール社製発泡ポリウレタン樹脂(IC−1000)
回転数:定盤75rpm、パッド75rpm
研磨剤供給速度:200mL/min
研磨対象物:P−TEOS成膜Siウェハ(200mm)
実施例1と同じ方法で作製した酸化セリウム粒子1000gとポリアクリル酸アンモニウム塩水溶液(40重量%)80gと脱イオン水3920gを混合し、撹拌しながら超音波分散を10分間施した。得られた分散液を室温で4時間静置沈降させ、上澄みを採取した。この上澄み液を孔径10μmの量産用フィルタでろ過した後、脱イオン水を加えて固形分濃度を5%に調整して、半導体平坦化用研磨剤を作製した。
実施例1と同じ方法で作製した酸化セリウム粒子1000gとポリアクリル酸アンモニウム塩水溶液(40重量%)80gと脱イオン水3920gを混合し、撹拌しながら超音波分散を10分間施した。得られた分散液を室温で4時間静置沈降させ、上澄みを採取した。この上澄み液に脱イオン水を加えて固形分濃度を5%に調整して、半導体平坦化用研磨剤を作製した。
Claims (8)
- 20時間以上静置沈降させ上澄みを採取することにより分級し、その後、フィルタ繊維が重なって孔を形成しており、前記孔はフィルタ外側から内側にかけて連続的に孔を小さくなるように形成されており、フィルタ繊維同士が固定されていないフィルタを用いて複数回濾過することにより調製される、酸化セリウム粒子及び水を含む半導体平坦化用研磨剤であって、孔径3μmのフィルタで濾過することで捕捉される粒径3μm以上の酸化セリウム粒子含有量が、研磨剤中の固体全体に占める重量比で500ppm以下である、半導体平坦化用研磨剤。
- さらに分散剤を含む請求項1記載の半導体平坦化用研磨剤。
- 酸化セリウム粒子全体の99体積%が粒径1μm以下である請求項1または2記載の半導体平坦化用研磨剤。
- さらに高分子添加剤を含む請求項1〜3のいずれか記載の半導体平坦化用研磨剤。
- pHが3以上9以下である請求項1〜4のいずれか記載の半導体平坦化用研磨剤。
- 前記酸化セリウム粒子の二次粒子径の中央値(D50)が0.03〜0.5μmである請求項1〜5のいずれか記載の半導体平坦化用研磨剤。
- 請求項1〜6のいずれか記載の半導体平坦化用研磨剤を、基体に形成されている被研磨膜と、研磨布との間に供給しながら、被研磨膜と研磨布とを相対的に動かして被研磨膜を平坦に研磨する研磨方法。
- 酸化セリウムを粉砕し、
上記粉砕した酸化セリウムに水と高分子添加剤と分散剤とを添加して一液式研磨剤または二液式研磨剤を調製し、
上記研磨剤を、20時間以上静置沈降させ上澄みを採取することにより分級し、その後、フィルタ繊維が重なって孔を形成しており、前記孔はフィルタ外側から内側にかけて連続的に孔を小さくなるように形成されており、フィルタ繊維同士が固定されていないフィルタを用いて濾過し、
前記濾過は、孔径3μmのフィルタで濾過することで捕捉される粒径3μm以上の酸化セリウム粒子含有量が、研磨剤中の固体全体に占める重量比で500ppm以下になるまで複数回繰り返す半導体平坦化用研磨剤の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003293438 | 2003-08-14 | ||
JP2003293438 | 2003-08-14 | ||
PCT/JP2004/011549 WO2005017989A1 (ja) | 2003-08-14 | 2004-08-11 | 半導体平坦化用研磨剤 |
Publications (2)
Publication Number | Publication Date |
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JPWO2005017989A1 JPWO2005017989A1 (ja) | 2007-10-04 |
JP4555944B2 true JP4555944B2 (ja) | 2010-10-06 |
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Application Number | Title | Priority Date | Filing Date |
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JP2005513167A Expired - Lifetime JP4555944B2 (ja) | 2003-08-14 | 2004-08-11 | 半導体平坦化用研磨剤およびその製造方法 |
Country Status (6)
Country | Link |
---|---|
US (3) | US20080219130A1 (ja) |
JP (1) | JP4555944B2 (ja) |
KR (1) | KR100774676B1 (ja) |
CN (1) | CN100409412C (ja) |
TW (1) | TWI241647B (ja) |
WO (1) | WO2005017989A1 (ja) |
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CN1659656B (zh) * | 2002-06-10 | 2010-06-16 | 皇家飞利浦电子股份有限公司 | 用于对多层光盘进行写入的方法和设备 |
US20080254717A1 (en) * | 2004-09-28 | 2008-10-16 | Hitachi Chemical Co., Ltd. | Cmp Polishing Slurry and Method of Polishing Substrate |
DE102005017372A1 (de) * | 2005-04-14 | 2006-10-19 | Degussa Ag | Wässrige Ceroxiddispersion |
WO2007046420A1 (ja) * | 2005-10-19 | 2007-04-26 | Hitachi Chemical Co., Ltd. | 酸化セリウムスラリー、酸化セリウム研磨液及びこれらを用いた基板の研磨方法 |
JP2007127544A (ja) * | 2005-11-04 | 2007-05-24 | Nomura Micro Sci Co Ltd | 半導体用研磨スラリー中の異物検査方法 |
JP4753710B2 (ja) * | 2005-12-22 | 2011-08-24 | 花王株式会社 | ハードディスク基板用研磨液組成物 |
US8328893B2 (en) | 2006-04-21 | 2012-12-11 | Hitachi Chemical Co., Ltd. | Method of producing oxide particles, slurry, polishing slurry, and method of polishing substrate |
JP4823881B2 (ja) * | 2006-12-05 | 2011-11-24 | 野村マイクロ・サイエンス株式会社 | 半導体用研磨スラリー中の異物検査方法及び異物検査装置 |
JP2011070752A (ja) * | 2009-09-28 | 2011-04-07 | Sanyo Electric Co Ltd | 光ピックアップ装置 |
SG194779A1 (en) | 2011-05-04 | 2013-12-30 | Univ Cornell | Multiblock copolymer films, methods of making same, and uses thereof |
JP2017191011A (ja) * | 2016-04-13 | 2017-10-19 | 株式会社村田製作所 | 粉体の評価方法 |
KR102308085B1 (ko) | 2016-04-28 | 2021-10-06 | 테라포어 테크놀로지스, 인코포레이티드 | 정전기적 분리를 위한 대전된 이소포러스 재료 |
US11401411B2 (en) | 2016-11-17 | 2022-08-02 | Terapore Technologies, Inc. | Isoporous self-assembled block copolymer films containing high molecular weight hydrophilic additives and methods of making the same |
WO2018156731A1 (en) | 2017-02-22 | 2018-08-30 | Dorin Rachel M | Ligand bound mbp membranes, uses and method of manufacturing |
WO2018156678A1 (en) * | 2017-02-23 | 2018-08-30 | Nikon Corporation | Fluid synthesis system |
CA3062637A1 (en) | 2017-05-12 | 2018-11-15 | Terapore Technologies, Inc. | Chemically resistant fluorinated multiblock polymer structures, methods of manufacturing and use |
SG11202002333SA (en) | 2017-09-19 | 2020-04-29 | Terapore Tech Inc | Chemically resistant isoporous crosslinked block copolymer structure |
CN107841288A (zh) * | 2017-12-12 | 2018-03-27 | 戚明海 | Cmp研磨剂及其制造方法 |
SG11202008678TA (en) | 2018-03-12 | 2020-10-29 | Terapore Tech Inc | Isoporous mesoporous asymmetric block copolymer materials with macrovoids and method of making the same |
KR20210062702A (ko) * | 2018-10-05 | 2021-05-31 | 테라포어 테크놀로지스, 인코포레이티드 | 전자 장치 생산을 위한 액체 또는 가스 여과 방법 |
CN114193328A (zh) * | 2020-09-18 | 2022-03-18 | 中国科学院微电子研究所 | 研磨剂容器及研磨剂供应方法 |
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- 2004-08-11 CN CNB2004800231890A patent/CN100409412C/zh not_active Expired - Lifetime
- 2004-08-11 US US10/568,147 patent/US20060283092A1/en not_active Abandoned
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TW200512822A (en) | 2005-04-01 |
KR20060034726A (ko) | 2006-04-24 |
TWI241647B (en) | 2005-10-11 |
US20080219130A1 (en) | 2008-09-11 |
KR100774676B1 (ko) | 2007-11-08 |
CN100409412C (zh) | 2008-08-06 |
US20060283092A1 (en) | 2006-12-21 |
WO2005017989A1 (ja) | 2005-02-24 |
JPWO2005017989A1 (ja) | 2007-10-04 |
CN1836315A (zh) | 2006-09-20 |
US20100192472A1 (en) | 2010-08-05 |
US8439995B2 (en) | 2013-05-14 |
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