KR102728465B1 - 연마용 조성물 - Google Patents
연마용 조성물 Download PDFInfo
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- KR102728465B1 KR102728465B1 KR1020190023783A KR20190023783A KR102728465B1 KR 102728465 B1 KR102728465 B1 KR 102728465B1 KR 1020190023783 A KR1020190023783 A KR 1020190023783A KR 20190023783 A KR20190023783 A KR 20190023783A KR 102728465 B1 KR102728465 B1 KR 102728465B1
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 26
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- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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- 239000012498 ultrapure water Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Abstract
연마 대상물을 연마하기 위해 사용되는 연마용 조성물이며, 지립과 분산매를 포함하고, 상기 지립의 평균 1차 입자 직경이 40nm 이하이고, 상기 지립 중, 입자 직경 0.2 내지 1,600㎛의 조대 입자가, 상기 연마용 조성물 1㎤당 20,000개 이하인, 연마용 조성물.
Description
Claims (16)
- 연마 대상물을 연마하기 위해 사용되는 연마용 조성물이며,
지립과 분산매를 포함하고,
상기 지립의 평균 1차 입자 직경이 6nm 이상 40nm 이하이고,
상기 지립 중, 입자 직경 0.2 내지 1,600㎛의 조대 입자가, 상기 연마용 조성물 1㎤당 500개 이상 3,230개 이하인, 연마용 조성물. - 제1항에 있어서,
상기 지립의 평균 1차 입자 직경이 15nm 이하인, 연마용 조성물. - 제1항에 있어서,
상기 지립의 평균 1차 입자 직경이 11nm 이하인, 연마용 조성물. - 제1항에 있어서,
상기 지립의 D90/D10이 2.2 이하인, 연마용 조성물. - 제1항에 있어서,
상기 지립의 함유량이 0.5 내지 2.5질량%인, 연마용 조성물. - 제1항에 있어서,
상기 지립이, 산성 영역에서, 부의 제타 전위를 갖는, 연마용 조성물. - 제1항에 있어서,
상기 지립이, 표면에 유기산이 고정화되어 이루어지는 지립인, 연마용 조성물. - 제1항에 있어서,
상기 지립의 회합도가 2.3 이하인, 연마용 조성물. - 제1항에 있어서,
pH가 1 내지 4인, 연마용 조성물. - 제1항에 있어서,
산화제를 실질적으로 포함하지 않는, 연마용 조성물. - 제1항에 있어서,
상기 연마 대상물이, 산화규소막, 질화규소막, 폴리실리콘막, 질화티타늄막 및 단결정 실리콘으로부터 선택되는 적어도 1종의 막을 포함하는, 연마용 조성물. - 제1항에 있어서,
상기 연마 대상물이, 질화규소막과; 산화규소막 및 폴리실리콘막 중 적어도 한쪽;을 포함하는, 연마용 조성물. - 제1항에 있어서,
양이온성 고분자, 음이온성 고분자, 비이온성 고분자, 양이온성 계면 활성제, 음이온성 계면 활성제, 비이온성 계면 활성제 및 당알코올로 이루어지는 군으로부터 선택되는 적어도 1종의 첨가제를 더 포함하는, 연마용 조성물. - 제1항 내지 제13항 중 어느 한 항에 기재된 연마용 조성물을 사용하여, 연마 대상물을 연마하는 것을 갖는, 연마 방법.
- 제14항에 기재된 연마 방법을 갖는, 반도체 기판의 제조 방법.
- 제1항에 있어서, 상기 조대입자가 상기 연마용 조성물 1㎤당 1000개 이상인, 연마용 조성물.
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JP2013170119A (ja) | 2012-02-23 | 2013-09-02 | Asahi Glass Co Ltd | シリカ溶液調製方法、該シリカ溶液調製方法により調製されたシリカ溶液を含有する研磨液、及び該研磨液を用いた磁気記録媒体用ガラス基板の製造方法 |
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