KR102567102B1 - 연마층용 폴리우레탄, 폴리우레탄을 포함하는 연마층과 그 연마층의 개질 방법, 연마 패드 및 연마 방법 - Google Patents
연마층용 폴리우레탄, 폴리우레탄을 포함하는 연마층과 그 연마층의 개질 방법, 연마 패드 및 연마 방법 Download PDFInfo
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- KR102567102B1 KR102567102B1 KR1020197030871A KR20197030871A KR102567102B1 KR 102567102 B1 KR102567102 B1 KR 102567102B1 KR 1020197030871 A KR1020197030871 A KR 1020197030871A KR 20197030871 A KR20197030871 A KR 20197030871A KR 102567102 B1 KR102567102 B1 KR 102567102B1
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Images
Classifications
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Abstract
Description
도 2 는, 폴리우레탄에 도입된 카르복실산기의 해리를 설명하는 설명도이다.
도 3 은, 폴리우레탄에 도입된 알데히드기를 수화시켜 수산기를 갖는 폴리우레탄으로 개질하는 과정을 설명하는 설명도이다.
도 4 는, 폴리우레탄에 유지되는 시프 염기를 산 처리에 의해 가수 분해함으로써, 폴리우레탄에 아미노기를 유지시키는 과정을 설명하는 설명도이다.
도 5 는, 실시형태의 연마 패드를 사용한 연마 방법을 설명하는 설명도이다.
2 : 회전 정반
3 : 슬러리 공급 노즐
4 : 캐리어
5 : 피연마물
6 : 패드 컨디셔너
7 : 슬러리
10 : CMP 장치
Claims (15)
- 시프 염기를 갖는 폴리우레탄을 포함하는 연마층.
- 제 1 항에 있어서,
상기 시프 염기를 갖는 폴리우레탄이,
(A) 시프 염기 함유 사슬 신장제를 포함하는 사슬 신장제와, (B) 고분자 디올과, (C) 유기 디이소시아네이트를 적어도 포함하는 모노머 원료의 반응물인 연마층. - 제 2 항에 있어서,
상기 시프 염기 함유 사슬 신장제는, 하기 일반식 (1):
R1-N=C-R2 … (1)
(식 (1) 중, R1 은 알킬기, 알케닐기, 하이드록시페닐기, 아미노페닐기, 하이드록시벤질이미노기, 아미노벤질이미노기, 또는 그것들을 함유하는 기이고, R2 는, R1 이 알킬기 또는 알케닐을 함유하는 기일 때에는 디하이드록시페닐기를 함유하는 기, R1 이 하이드록시페닐기 또는 아미노페닐기를 함유하는 기일 때에는 하이드록시페닐기를 함유하는 기, R1 이 하이드록시벤질이미노기 또는 아미노벤질이미노기를 함유하는 기일 때에는 하이드록시페닐기를 함유하는 기이고, R1 및 R2 는 각각 치환기를 가져도 된다)
로 나타내는 연마층. - 제 2 항에 있어서,
상기 시프 염기 함유 사슬 신장제는,
2,4-디하이드록시벤젠-1-이미노부탄, 2,4-디하이드록시벤젠-1-이미노프로판, N,N'-비스살리실리덴에틸렌디아민, 2-살리실리덴아미노페놀, 4-[(3-디메틸아미노-프로필이미노)-메틸]-벤젠-1,3-디올, 또는 3-[{4-[(3-하이드록시-프로필이미노)-메틸]-벤질리덴}-아미노]-프로판-1-올로 이루어지는 군에서 선택되는 적어도 1 종을 포함하는 연마층. - 제 1 항에 있어서,
상기 시프 염기를 갖는 폴리우레탄이, 상기 시프 염기를 측사슬에 갖는 연마층. - 제 1 항에 기재된 연마층을 준비하는 공정과,
상기 시프 염기의 적어도 일부를, 알데히드기, 카르복실산기, 수산기, 및 아미노기에서 선택되는 적어도 1 종의 관능기로 변환하는 후처리 공정을 구비하는 폴리우레탄을 포함하는 연마층의 개질 방법. - 제 6 항에 기재된 연마층의 개질 방법에 의해 얻어진, 상기 시프 염기와, 알데히드기, 카르복실산기, 수산기, 및 아미노기에서 선택되는 적어도 1 종의 관능기를 갖는 폴리우레탄을 포함하는 연마층.
- 제 7 항에 있어서,
상기 카르복실산기를 갖는 폴리우레탄을 포함하는, pH 3.0 에 있어서의 제타 전위가 -1.0 ㎷ 이하인 연마면을 갖는 연마층. - 제 7 항에 있어서,
상기 폴리우레탄이 비발포체인 연마층. - 제 7 항에 있어서,
50 ℃ 의 물로 포화 팽윤시킨 후의 50 ℃ 에 있어서의 저장 탄성률이 50 ∼ 1200 ㎫ 이고, 또한, 물과의 접촉각이 80 도 이하인 연마층. - 제 1 항에 있어서, 상기 시프 염기를 갖는 폴리우레탄의 성형체를 포함하는, 성형체 타입인, 연마층.
- 제 1 항에 있어서,
부직포와, 상기 부직포에 함침 부여된 상기 시프 염기를 갖는 폴리우레탄을 포함하는 연마층. - 제 1 항 내지 제 5 항 및 제 7 항 내지 제 12 항 중 어느 한 항에 기재된 연마층을 포함하는 연마 패드.
- 제 13 항에 기재된 연마 패드를 연마 장치의 정반 상에 고정시키는 공정과,
상기 연마 패드의 상기 연마층의 연마면에 대면하도록 피연마물을 연마 장치의 홀더에 유지시키는 공정과, 상기 연마면과 상기 피연마물의 사이에 산성의 연마 슬러리를 공급하면서, 상기 연마 패드와 상기 피연마물을 상대적으로 슬라이딩시킴으로써 상기 피연마물을 연마하는 공정을 구비하는 것을 특징으로 하는 연마 방법. - 삭제
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KR20200003793A (ko) | 2020-01-10 |
TW201902969A (zh) | 2019-01-16 |
IL270416B2 (en) | 2023-11-01 |
US11787894B2 (en) | 2023-10-17 |
JPWO2018207670A1 (ja) | 2020-04-02 |
TWI719307B (zh) | 2021-02-21 |
EP3623402A4 (en) | 2021-06-23 |
IL270416A (ko) | 2019-12-31 |
IL270416B1 (en) | 2023-07-01 |
CN110573547A (zh) | 2019-12-13 |
WO2018207670A1 (ja) | 2018-11-15 |
US20210087325A1 (en) | 2021-03-25 |
JP7181860B2 (ja) | 2022-12-01 |
EP3623402A1 (en) | 2020-03-18 |
IL303114A (en) | 2023-07-01 |
CN110573547B (zh) | 2022-06-10 |
US20200190247A1 (en) | 2020-06-18 |
US11053339B2 (en) | 2021-07-06 |
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