JP2017101236A - 研磨用組成物 - Google Patents
研磨用組成物 Download PDFInfo
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- JP2017101236A JP2017101236A JP2016233121A JP2016233121A JP2017101236A JP 2017101236 A JP2017101236 A JP 2017101236A JP 2016233121 A JP2016233121 A JP 2016233121A JP 2016233121 A JP2016233121 A JP 2016233121A JP 2017101236 A JP2017101236 A JP 2017101236A
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- Prior art keywords
- polishing
- water
- soluble polymer
- polishing composition
- acid
- Prior art date
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- 239000004814 polyurethane Substances 0.000 description 1
- 229920002717 polyvinylpyridine Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000019423 pullulan Nutrition 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
-
- 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
-
- 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
-
- 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
-
- 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
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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 Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
【解決手段】砥粒、酸化剤、および水溶性重合体を含有し、水溶性重合体が、砥粒の表面積1μm2あたり5000個以上の分子が吸着するもの、あるいは、研磨用組成物を用いて研磨対象物を研磨した後の研磨対象物のゲルマニウム材料を含有する部分の水接触角を小さくするような化合物による研磨用組成物。
【選択図】なし
Description
研磨用組成物中に含まれる砥粒は、無機粒子および有機粒子のいずれであってもよい。無機粒子の具体例としては、シリカ、アルミナ、セリア、チタニアなどの金属酸化物からなる粒子が挙げられる。有機粒子の具体例としては、ポリメタクリル酸メチル(PMMA)粒子が挙げられる。その中でもシリカ粒子が好ましく、特に好ましいのはコロイダルシリカである。これら砥粒は、単独でもまたは2種以上混合しても用いることができる。
研磨用組成物中に含まれる酸化剤の種類は特に限定されないが、0.3V以上の標準電極電位を有していることが好ましい。0.3V以上の標準電極電位を有する酸化剤を使用した場合には、0.3V未満の標準電極電位を有する酸化剤を使用した場合に比べて、研磨用組成物によるGe材料部分およびケイ素材料部分の研磨速度が向上する点で有利である。0.3V以上の標準電極電位を有する酸化剤の具体例としては、例えば、過酸化水素、過酸化ナトリウム、過酸化バリウム、有機酸化剤、オゾン水、銀(II)塩、鉄(III)塩、ならびに過マンガン酸、クロム酸、重クロム酸、ペルオキソ二硫酸、ペルオキソリン酸、ペルオキソ硫酸、ペルオキソホウ酸、過ギ酸、過酢酸、過安息香酸、過フタル酸、次亜塩素酸、次亜臭素酸、次亜ヨウ素酸、塩素酸、亜塩素酸、過塩素酸、臭素酸、ヨウ素酸、過ヨウ素酸、硫酸、過硫酸、クエン酸、ジクロロイソシアヌル酸およびそれらの塩等が挙げられる。これら酸化剤は、単独でもまたは2種以上混合しても用いることができる。
研磨用組成物中に含まれる水溶性重合体の種類は特に限定されないが、砥粒の表面積1μm2あたりに5000個以上の分子が吸着するような種類の水溶性重合体、例えばポリオキシアルキレン鎖を有するノニオン性化合物を好ましく使用することができる。ポリオキシアルキレン鎖を有するノニオン性化合物の具体例としては、ポリエチレングリコール、ポリプロピレングリコール、ポリオキシエチレン(以下、POEという)アルキレンジグリセリルエーテル、POEアルキルエーテル、POEソルビタン脂肪酸エステル、POEアルキルフェニルエーテル、POEグリコール脂肪酸エステル、POEヘキシタン脂肪酸エステル、POEポリプロピレンアルキルエーテル、およびポリオキシプロピレン/ポリオキシエチレンのブロック/ランダムコポリマーが挙げられる。このような水溶性重合体を使用した場合には、ポリオキシアルキレン鎖を介して、所定の量以上の水溶性重合体が砥粒の表面に吸着することにより砥粒の表面性質に変化が生じる結果、ディッシングやエロージョンが研磨対象物の表面に発生するのを抑えることができる。
上述のように、本発明の研磨用組成物は、Ge材料を含有する部分を有する研磨対象物の研磨に好適に用いられる。よって、本発明は、Ge材料を含有する部分を有する研磨対象物を本発明の研磨用組成物で研磨する研磨方法を提供する。また、本発明は、Ge材料を含有する部分を有する研磨対象物を前記研磨方法で研磨する工程を含む基板の製造方法を提供する。
Claims (7)
- ゲルマニウム材料を含有する部分を有する研磨対象物を研磨する用途で使用される研磨用組成物であって、砥粒、酸化剤、および水溶性重合体を含有する、研磨用組成物。
- 前記砥粒の表面積1μm2あたり5000個以上の前記水溶性重合体の分子が吸着する、請求項1に記載の研磨用組成物。
- 前記水溶性重合体のアミン価が、10mgKOH/g以上である、請求項1または2に記載の研磨用組成物。
- 前記水溶性重合体は親水性基を有し、
前記研磨用組成物を用いて前記研磨対象物を研磨した後の前記ゲルマニウム材料を含有する部分の水接触角が、その研磨用組成物から水溶性重合体を除いた組成を有する別の組成物を用いて前記研磨対象物を研磨した後の前記ゲルマニウム材料を含有する部分の水接触角と比較して小さい、請求項1〜3のいずれか1項に記載の研磨用組成物。 - 前記水溶性重合体は、化学式:R1−X1−Y1(ただし、R1はアルキル基、アルキルフェニル基またはアルケニル基を表し、X1はポリオキシエチレン基、ポリオキシプロピレン基、またはポリ(オキシエチレン・オキシプロピレン)基を表し、Y1はSO3M1基、SO4M1基、CO2M1基、またはPO3M12基(ただし、M1はカウンターイオンを表す)を表す。)で表されるアニオン界面活性剤である、請求項1〜4のいずれか1項に記載の研磨用組成物。
- ゲルマニウム材料を含有する部分を有する研磨対象物を、請求項1〜5のいずれか1項に記載の研磨用組成物を用いて研磨する、研磨方法。
- 請求項6に記載の研磨方法で研磨する工程を含む、ゲルマニウム材料を含有する部分を有する基板の製造方法。
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JP7359615B2 (ja) | 2018-09-28 | 2023-10-11 | 株式会社フジミインコーポレーテッド | 研磨用組成物、研磨方法および基板の製造方法 |
Also Published As
Publication number | Publication date |
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JP6377707B2 (ja) | 2018-08-22 |
TW201348360A (zh) | 2013-12-01 |
JP6132315B2 (ja) | 2017-05-24 |
TWI570198B (zh) | 2017-02-11 |
JPWO2013157442A1 (ja) | 2015-12-21 |
US20150060400A1 (en) | 2015-03-05 |
WO2013157442A1 (ja) | 2013-10-24 |
KR20150014924A (ko) | 2015-02-09 |
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