KR102398664B1 - 반도체 소자의 제조 방법 - Google Patents
반도체 소자의 제조 방법 Download PDFInfo
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- KR102398664B1 KR102398664B1 KR1020160009399A KR20160009399A KR102398664B1 KR 102398664 B1 KR102398664 B1 KR 102398664B1 KR 1020160009399 A KR1020160009399 A KR 1020160009399A KR 20160009399 A KR20160009399 A KR 20160009399A KR 102398664 B1 KR102398664 B1 KR 102398664B1
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- 125000006850 spacer group Chemical group 0.000 description 11
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- 229910052786 argon Inorganic materials 0.000 description 1
- 125000000852 azido group Chemical group *N=[N+]=[N-] 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 1
- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 description 1
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- GVBRQOXROVMRNT-UHFFFAOYSA-N butyl butaneperoxoate Chemical class CCCCOOC(=O)CCC GVBRQOXROVMRNT-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 description 1
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- GSJFXBNYJCXDGI-UHFFFAOYSA-N methyl 2-hydroxyacetate Chemical compound COC(=O)CO GSJFXBNYJCXDGI-UHFFFAOYSA-N 0.000 description 1
- HSDFKDZBJMDHFF-UHFFFAOYSA-N methyl 3-ethoxypropanoate Chemical compound CCOCCC(=O)OC HSDFKDZBJMDHFF-UHFFFAOYSA-N 0.000 description 1
- BDJSOPWXYLFTNW-UHFFFAOYSA-N methyl 3-methoxypropanoate Chemical compound COCCC(=O)OC BDJSOPWXYLFTNW-UHFFFAOYSA-N 0.000 description 1
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- RLUCXJBHKHIDSP-UHFFFAOYSA-N propane-1,2-diol;propanoic acid Chemical class CCC(O)=O.CC(O)CO RLUCXJBHKHIDSP-UHFFFAOYSA-N 0.000 description 1
- ILVGAIQLOCKNQA-UHFFFAOYSA-N propyl 2-hydroxypropanoate Chemical compound CCCOC(=O)C(C)O ILVGAIQLOCKNQA-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
도 2 내지 도 14는 예시적인 실시예들에 따른 반도체 소자의 제조 방법을 설명하기 위하여 공정 순서에 따라 도시한 단면도들이다.
도 15a 내지 도 19b는 예시적인 실시예들에 따른 반도체 소자의 제조 방법을 설명하기 위하여 공정 순서에 따라 도시한 평면도들 및 단면도들이다.
도 20 내지 도 31은 예시적인 실시예들에 따른 반도체 소자의 제조 방법을 설명하기 위하여 공정 순서에 따라 도시한 단면도들이다.
도 32는 예시적인 실시예들에 따라 제조된 반도체 소자를 포함하는 시스템의 블록 다이어그램이다.
도 33은 예시적인 실시예들에 따라 제조된 반도체 소자를 포함하는 메모리 카드의 블록 다이어그램이다.
132P: 제1 마스크 패턴 134P: 복수의 기준 패턴
136P: 제1 물질층 패턴 138P: 제2 마스크 패턴
140: 유기 코팅층 140L: 유기 라이너
140R: 유기 코팅층 잔류부 150: 매립층
150P: 복수의 매립 패턴 S110: 표면처리
S120: 제1 베이킹 처리 S130: 제2 베이킹 처리
Claims (10)
- 기판 상에 피쳐층을 형성하는 단계;
상기 피쳐층 상에 제1 피치로 배열되는 복수의 기준 패턴을 형성하는 단계;
상기 복수의 기준 패턴의 측벽 상에 유기 라이너(organic liner)를 형성하는 단계;
상기 유기 라이너 상에 복수의 매립 패턴을 형성하되, 상기 복수의 매립 패턴 각각은 상기 복수의 기준 패턴 중 인접한 두 개의 기준 패턴의 측벽들 사이의 공간을 각각 채우는 상기 복수의 매립 패턴을 형성하는 단계;
상기 복수의 매립 패턴과 상기 복수의 기준 패턴 사이에 노출된 상기 유기 라이너를 제거하는 단계; 및
상기 복수의 매립 패턴과 상기 복수의 기준 패턴을 식각 마스크로 사용하여 상기 피쳐층을 식각하여 피쳐 패턴을 형성하는 단계를 포함하고,
상기 복수의 매립 패턴을 형성하는 단계는,
상기 유기 라이너 상에 무기 물질을 사용하여 상기 복수의 기준 패턴을 커버하는 매립층을 형성하는 단계; 및
상기 복수의 기준 패턴 상면이 노출될 때까지 상기 매립층 및 상기 유기 라이너 상측을 평탄화하는 단계;를 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법. - 제1항에 있어서,
상기 유기 라이너를 형성하는 단계는,
상기 복수의 기준 패턴 상에 유기 화합물을 포함하는 유기 코팅층을 형성하는 단계;
상기 유기 코팅층 내에 포함된 상기 유기 화합물이 상기 복수의 기준 패턴의 상기 측벽 및 상면 상에 자기정렬되어(self-aligned) 상기 유기 라이너를 형성하도록 제1 베이킹 처리를 수행하는 단계; 및
상기 유기 라이너 상의 상기 유기 코팅층을 제거하는 단계;를 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법. - 제2항에 있어서,
상기 유기 화합물은 친수성 작용기로 일부가 치환된 C5 - C50의 지방족 탄화수소 화합물, 친수성 작용기로 일부가 치환된 C5 - C50의 방향족 탄화수소 화합물 또는 이의 유도체들인 것을 특징으로 하는 반도체 소자의 제조 방법. - 제2항에 있어서,
상기 유기 화합물은 친수성 작용기로 일부가 치환된 C5 - C50의 지방족 탄화수소 화합물을 반복 단위로 하는 폴리머, 또는 친수성 작용기로 일부가 치환된 C5 - C50의 방향족 탄화수소 화합물을 반복 단위로 하는 폴리머인 것을 특징으로 하는 반도체 소자의 제조 방법. - 제1항에 있어서,
상기 유기 라이너를 형성하는 단계 이전에,
상기 복수의 기준 패턴의 측벽이 친수성 표면을 갖도록 상기 복수의 기준 패턴 상에 표면처리를 수행하는 단계를 더 포함하는 반도체 소자의 제조 방법. - 삭제
- 제1항에 있어서,
상기 유기 라이너를 제거하는 단계에서, 상기 유기 라이너는 상기 복수의 기준 패턴과 상기 복수의 매립 패턴에 대하여 5 : 1 보다 큰 식각 선택비를 갖는 것을 특징으로 하는 반도체 소자의 제조 방법. - 제1항에 있어서,
상기 유기 라이너를 형성하는 단계 이후에,
상기 유기 라이너 상에 제2 베이킹 처리를 수행하는 단계를 더 포함하는 반도체 소자의 제조 방법. - 제1항에 있어서,
상기 복수의 기준 패턴은 상기 기판의 상면에 평행한 제1 방향을 따라 연장되는 라인 형태의 패턴을 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법. - 제1항에 있어서,
상기 복수의 기준 패턴은 상기 기판의 상면에 평행한 제1 방향 및 상기 기판의 상면에 평행하며 상기 제1 방향과는 다른 제2 방향으로 이격되어 배열되는 아일랜드 형태의 패턴을 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법.
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