KR102433666B1 - 하드마스크 조성물, 이를 이용한 패턴의 형성방법 및 상기 하드마스크 조성물을 이용하여 형성된 하드마스크 - Google Patents
하드마스크 조성물, 이를 이용한 패턴의 형성방법 및 상기 하드마스크 조성물을 이용하여 형성된 하드마스크 Download PDFInfo
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- KR102433666B1 KR102433666B1 KR1020170095711A KR20170095711A KR102433666B1 KR 102433666 B1 KR102433666 B1 KR 102433666B1 KR 1020170095711 A KR1020170095711 A KR 1020170095711A KR 20170095711 A KR20170095711 A KR 20170095711A KR 102433666 B1 KR102433666 B1 KR 102433666B1
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- 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
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Abstract
Description
도 2a 내지 도 2e는 일구현예에 따른 하드마스크 조성물을 이용한 패턴의 형성방법을 설명하기 위한 것이다.
도 3a 내지 도 3d는 다른 일구현예에 따른 하드마스크 조성물을 이용한 패턴의 형성방법을 설명하기 위한 것이다.
도 4는 에 대한 푸리에 변환(Fourier transform: FT) 적외선(infrared: IR) 분석 스펙트럼을 나타낸 것이다.
도 5a는 제작예 1의 하드마스크 조성물에서 OH-관능화된 그래핀과 디메틸 아세틸렌디카르복실레이트의 딜스알더 반응 생성물(FGQD)을 코팅하고 이를 건조한 경우에 대한 X선 광전자 분광(X-ray Photoelectron Spectroscopy: XPS) 분석 그래프이다.
도 5b는 제조예 3에 따라 얻은 OH-관능화된 그래핀 양자점(Graphne Quantum Dot: GQD) 및 용매를 함유한 조성물을 코팅 및 건조한 경우에 대한 XPS 분석 그래프이다.
도 5c는 도 5a의 결과물을 400℃에서 열처리를 실시한 후에 대한 XPS 분석 그래프이다.
도 6은 제조예 3에 따라 제조된 그래핀 양자점(GQD)과 제작예 1에 따라 실
시하여 실시예 1에 따라 제조된 하드마스크 조성물을 이용하여 얻은 딜스알더 반응 생성물(FGQD)에 대한 열중량 분석 결과를 나타낸 그래프이다.
구분 | 용해도(중량%) |
제조예 3(OH-관능화된 그래핀) | 1 중량% 미만 |
제작예 1(딜스알더 반응 생성물) | 20 중량% |
구분 | C(원자%) | N(원자%) | O(원자%) | |
제조예 3 | GQD(ref.) | 79.2 | 2.5 | 18.2 |
GQD(powder) | 71.0 | 2.6 | 25.7 | |
제작예 1 | FGQD(as-dep) | 71.9 | 2.2 | 25.9 |
FGQD(bake) | 80.3 | 2.1 | 17.4 |
구분 | C(원자%) | N(원자%) | O(원자%) | H(원자%) | 밀도(g/cm3) |
비교예2(ACL) | 78.1 | 1.8 | 3.2 | 16.9 | 1.54 |
FGQD(as-dep) | 61.2 | 2.5 | 7.4 | 28.9 | 0.87 |
FGQD(bake) | 65.0 | 3.7 | 10.7 | 20.6 | 1.34 |
제조예3(GQD) | 68.0 | 3.0 | 9.3 | 19.7 | 1.25 |
68.5 | 2.1 | 8.6 | 20.9 | 1.34 |
10, 20: 기판 11a, 21a: 피식각막 패턴
12a, 22a: 하드마스크 패턴 13a: 포토레지스트 패턴
Claims (20)
- i)그래핀 양자점(graphene quantum dots)과, 디엔체(diene)와 친디엔체(dienophile) 중에서 선택된 하나 이상의 혼합물, ii) 그래핀 양자점과, 디엔체 및 친디엔체 중에서 선택된 하나 이상의 딜스알더 반응(Diels-Alder reaction) 생성물, iii) 그래핀 양자점과, 디엔체 및 친디엔체 중에서 선택된 하나 이상의 딜스알더 반응(Diels-Alder reaction) 생성물을 열처리하여 얻은 생성물 또는 iv) 그 혼합물; 및
극성 비수계 유기용매를 포함하는 하드마스크 조성물. - 제1항에 있어서,
상기 그래핀 양자점의 말단에는 하이드록시기, 카르보닐기, 카르복실기, 에폭시기, 아민기 및 이미드기로 이루어진 군으로부터 선택된 하나 이상의 제1작용기를 갖는 하드마스크 조성물. - 제1항에 있어서,
상기 디엔체 및 친디엔체는 상기 극성 비수계 유기용매와 동일하거나 또는 유사한 제2작용기를 갖고 있는 하드마스크 조성물. - 제3항에 있어서,
상기 제2작용기는 카르복실기를 갖는 C2-C20 알케닐렌기, 카르보닐기를 함유한 유기기, -COOR(R은 C1 내지 20의 알킬기 또는 C2-C20의 알케닐기임)를 갖는 유기기, C2-C10 시아노알킬렌기, C4-C20 헤테로고리기, C2-C20 알케닐기, C4-C20 축합 아릴렌기의 수소 첨가물 그룹 중에서 선택된 하나 이상인 하드마스크 조성물. - 제1항에 있어서,
상기 극성 비수계 유기용매는 프로필렌글리콜모노메틸에테르아세테이트(propyleneglycol monomethylether acetate: PGMEA), 프로필렌글리콜모노메틸에테르(propyleneglycol monomethyl ether: PGME), 사이클로헥산온(cyclohexanone), 및 에틸락테이트(ethyl lactate) 중에서 선택된 하나 이상인 하드마스크 조성물. - 제1항에 있어서,
상기 디엔체 및 친디엔체 중에서 선택된 하나 이상의 함량은 그래핀 양자점 100 중량부를 기준으로 하여 100 중량부 이상인 하드마스크 조성물. - 제1항에 있어서,
상기 그래핀 양자점은 1 내지 50nm 사이즈를 갖는 하드마스크 조성물. - 제1항에 있어서,
상기 하드마스크 조성물이 물, 메탄올, 이소프로판올, 에탄올 N,N-디메틸포름아미드, N-메틸피롤리돈, 디클로로에탄, 디클로로벤젠, N,N-디메틸술폭사이드, 아닐린, 프로필렌 글리콜, 프로필렌 글리콜 디아세테이트, 메톡시 프로판디올, 디에틸렌글리콜, 감마부티로락톤, 아세틸아세톤, 사이클로헥사논, 프로필렌글리콜 모노메틸에테르 아세테이트, γ-부티로락톤, 디클로로에탄, 디클로로벤젠, 니트로메탄, 테트라하이드로퓨란, 니트로벤젠, 부틸 니트라이트(butyl nitrite), 메틸셀로솔브, 에틸셀로솔브, 디에틸 에테르, 디에틸렌글리콜메틸에테르, 디에틸렌글리콜에틸에테르, 디프로필렌글리콜메틸에테르, 톨루엔, 자이렌, 헥산, 메틸에틸케톤, 메틸이소케톤, 하이드록시메틸셀룰로오즈, 및 헵탄 중에서 선택된 하나 이상의 유기용매를 더 포함하는 하드마스크 조성물. - 제1항에 있어서,
상기 하드마스크 조성물이 방향족 고리 함유 모노머, 방향족 고리 함유 모노머를 포함하는 반복단위를 함유하는 고분자 중에서 선택된 하나의 제1물질; 육방정계 질화붕소, 칼코게나이드계 물질, 및 그 전구체로 이루어진 군으로부터 선택된 하나 이상의 제2물질; 또는 그 혼합물;을 더 포함하는 하드마스크 조성물. - 기판상에 피식각막을 형성하는 제1단계;
상기 피식각막 상부에 제1항 내지 제12항 중 어느 한 항의 하드마스크 조성물을 공급하여 상기 하드마스크 조성물의 코팅 및 열처리 반응 생성물을 포함하는 하드마스크를 형성하는 제2단계;
상기 하드마스크 상부에 포토레지스트막을 형성하는 제3단계;
상기 포토레지스트막을 에칭 마스크로 하여 상기 하드마스크 조성물의 코팅 및 열처리 반응 생성물을 포함하는 하드마스크 패턴을 형성하는 제4단계; 및
상기 하드마스크 패턴을 에칭 마스크로 하여 상기 피식각막을 에칭하는 제5단계를 포함하는 패턴의 형성방법. - 제13항에 있어서,
상기 제2단계에서 공급된 하드마스크 조성물이 그래핀 양자점, 디엔체 및 친디엔체 중에서 선택된 하나 이상 및 극성 비수계 유기용매를 혼합하여 제조되는 패턴의 형성방법. - 제14항에 있어서,
상기 그래핀 양자점이 OH-관능화된 그래핀 양자점(OH-functionalized GQD), COOH-관능화된 그래핀 양자점(COOH-functionalized GQD) 또는 그래핀 양자점 전구체인 패턴의 형성방법. - 제1항 내지 제12항 중 어느 한 항의 하드마스크 조성물을 코팅 및 열처리하여 얻은 생성물을 포함하는 하드마스크.
- 제16항에 있어서, 상기 하드마스크 조성물을 코팅 및 열처리하여 얻은 생성물이 그래핀 양자점과, 디엔체 및 친디엔체 중에서 선택된 하나 이상의 딜스알더 반응(Diels-Alder reaction) 생성물을 열처리하여 얻은 생성물인 하드마스크.
- 제16항에 있어서,
X선 광전자 분광 분석을 통하여 상기 하드마스크에서 그래핀 양자점은 출발물질인 그래핀 양자점의 산소 함량에 비하여 3원자% 이상 감소된 산소 함량을 갖는 하드마스크. - 제16항에 있어서,
적외선 분광 스펙트럼 분석에서 상기 하드마스크는 프리 하이드록시기에 기인된 피크(파수: 2700 내지 3200cm-1)가 출발물질인 그래핀 양자점의 프리 하이드록시기에 기인된 피크에 비하여 세기가 감소되고, 파수 750 내지 1000cm-1의 피크로부터 sp2 탄소에 대한 sp3 탄소의 혼합비가 출발물질인 그래핀 양자점의 sp2 탄소에 대한 sp3 탄소의 혼합비에 비하여 증가하는 하드마스크. - 제16항에 있어서,
X선 광전자 분광 분석을 통하여 하드마스크에 대한 sp2 탄소에서 기인된 피크 대비 sp3 탄소에서 기인된 피크의 세기비(Isp3/Isp2)는 출발물질인 그래핀 양자점의 sp2 탄소에서 기인된 피크 대비 sp3 탄소에서 기인된 피크의 세기비(Isp3/Isp2)에 비하여 증가하는 하드마스크.
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