KR102356741B1 - 절연층들을 갖는 반도체 소자 및 그 제조 방법 - Google Patents
절연층들을 갖는 반도체 소자 및 그 제조 방법 Download PDFInfo
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- KR102356741B1 KR102356741B1 KR1020170067360A KR20170067360A KR102356741B1 KR 102356741 B1 KR102356741 B1 KR 102356741B1 KR 1020170067360 A KR1020170067360 A KR 1020170067360A KR 20170067360 A KR20170067360 A KR 20170067360A KR 102356741 B1 KR102356741 B1 KR 102356741B1
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Abstract
Description
도 5는 본 개시에 따른 실시예들로서, 반도체 소자를 설명하기 위한 레이아웃(layout)이다.
도 6은 본 개시에 따른 실시예들로서, 반도체 소자를 설명하기 위하여 도 5의 절단선 I-I', Ⅱ-Ⅱ', Ⅲ-Ⅲ', 및 Ⅳ-Ⅳ'에 따라 취해진 단면도이다.
도 7 내지 도 9는 도 6의 일부분을 보여주는 부분 확대도들이다.
도 10 내지 도 12 및 도 16 내지 도 20은 본 개시에 따른 실시예들로서, 반도체 소자의 형성 방법을 설명하기 위하여 도 5의 절단선 I-I', Ⅱ-Ⅱ', Ⅲ-Ⅲ', 및 Ⅳ-Ⅳ'에 따라 취해진 단면도들이다.
도 13 내지 도 15는 도 12의 일부분을 보여주는 부분 확대도들이다.
도 21 및 도 22는 본 개시에 따른 실시예들로서, 반도체 소자의 형성 방법을 설명하기 위하여 도 5의 절단선 I-I', Ⅱ-Ⅱ', Ⅲ-Ⅲ', 및 Ⅳ-Ⅳ'에 따라 취해진 단면도들이다.
도 23은 도 22의 일부분을 보여주는 부분 확대도이다.
도 24 및 도 25는 본 개시에 따른 실시예들로서, 반도체 소자를 포함하는 전자 시스템을 도시한 블록도들이다.
26: 기판
CR: 셀 영역 ER: 연결 영역
27: 소자 분리층 43: 층간 절연층
61: 채널 홀 62A, 62B, 62C: 더미 홀
63: 반도체 패턴 65: 정보 저장 패턴
66: 터널 절연층 67: 전하 저장층
68: 제1 블로킹 층 69: 제2 블로킹 층
71: 채널 패턴 73: 코어 패턴
75: 채널 구조체 76: 도전성 패드
77: 셀 필라 78A, 78B, 78C: 더미 필라
81: 트렌치 82: 불순물 영역
83: 개구부 85: 게이트 절연층
87: 스페이서 88: 소스 라인
89: 캐핑 층 91: 비트 플러그
BL: 비트라인 93: 배선 플러그
95: 메탈 라인 131: 하부 절연층
132: 하부 몰드 층 141: 제1 중간 절연층
142: 제1 중간 몰드 층
145: 스트리에이션 제어 절연층 146: 스트리에이션 제어 몰드 층
147: 제2 중간 절연층 148: 제2 중간 몰드 층
151: 상부 절연층 152: 상부 몰드 층
4300: 전자 시스템 4310: 바디
4320: 마이크로프로세서 유닛 4330: 파워 공급 유닛
4340: 기능 유닛 4350: 디스플레이 컨트롤러 유닛
4360: 디스플레이 유닛 4370: 외부 장치
4380: 통신 유닛
4400: 전자 시스템 4412: 메모리 시스템
4414: 마이크로프로세서 4416: 램
4418: 유저 인터페이스 4420: 버스
Claims (10)
- 기판 상에 형성되고 절연층들 및 게이트 전극들이 번갈아 가며 반복적으로 적층된 적층 구조체; 및
상기 적층 구조체를 관통하는 필라(pillar)를 포함하되,
상기 절연층들은 다수의 하부 절연층들, 상기 하부 절연층들 상의 다수의 중간 절연층들, 및 상기 중간 절연층들 상의 다수의 상부 절연층들을 포함하고,
상기 중간 절연층들은 상기 하부 절연층들 및 상기 상부 절연층들 사이에 배치되고, 상기 하부 절연층들의 경도(hardness)는 상기 중간 절연층들보다 낮고, 상기 상부 절연층들의 경도는 상기 중간 절연층들보다 높은 반도체 소자. - 제1 항에 있어서,
상기 하부 절연층들의 경도는 상기 중간 절연층들에 비하여 1% 내지 15% 낮고, 상기 상부 절연층들의 경도는 상기 중간 절연층들에 비하여 1% 내지 15% 높은 반도체 소자. - 제1 항에 있어서,
상기 하부 절연층들, 상기 중간 절연층들, 및 상기 상부 절연층들은 실리콘 산화물을 포함하는 반도체 소자. - 기판 상에 형성되고 절연층들 및 게이트 전극들이 번갈아 가며 반복적으로 적층된 적층 구조체; 및
상기 적층 구조체를 관통하는 필라(pillar)를 포함하되,
상기 절연층들은 다수의 하부 절연층들, 상기 하부 절연층들 상의 다수의 중간 절연층들, 및 상기 중간 절연층들 상의 다수의 상부 절연층들을 포함하고,
상기 하부 절연층들의 경도(hardness)는 상기 중간 절연층들보다 낮고, 상기 상부 절연층들의 경도는 상기 중간 절연층들보다 높고,
상기 중간 절연층들의 사이, 상기 중간 절연층들 및 상기 하부 절연층들의 사이, 또는 상기 상부 절연층들 및 상기 중간 절연층들의 사이에 형성된 다수의 형상 제어 절연층들을 더 포함하되,
상기 형상 제어 절연층들의 경도는 상기 중간 절연층들보다 낮은 반도체 소자. - 제4 항에 있어서,
상기 형상 제어 절연층들의 경도는 상기 하부 절연층들보다 낮은 반도체 소자. - 제4 항에 있어서,
상기 형상 제어 절연층들의 경도는 상기 중간 절연층들에 비하여 1% 내지 15% 낮은 반도체 소자. - 제4 항에 있어서,
상기 필라는 상기 중간 절연층들을 관통하는 영역에 있어서 제1 폭을 갖고, 상기 필라는 상기 형상 제어 절연층들을 관통하는 영역에 있어서 상기 제1 폭보다 넓은 제2 폭을 가지는 반도체 소자. - 제4 항에 있어서,
상기 형상 제어 절연층들은 상기 적층 구조체 높이의 0.3배 내지 0.7배 사이에 형성된 반도체 소자. - 셀 영역 및 연결 영역을 갖는 기판;
상기 기판 상의 상기 셀 영역에 형성되고 절연층들 및 게이트 전극들이 번갈아 가며 반복적으로 적층된 적층 구조체;
상기 적층 구조체의 일 부분은 상기 기판 상의 상기 연결 영역에 연장되며, 상기 기판 상의 상기 연결 영역에 형성되고 상기 적층 구조체를 덮는 층간 절연층;
상기 기판 상의 상기 셀 영역에 형성되고 상기 적층 구조체를 관통하는 셀 필라(cell pillar); 및
상기 기판 상의 상기 연결 영역에 형성되고 상기 층간 절연층 및 상기 적층 구조체를 관통하는 더미 필라(dummy pillar)를 포함하되,
상기 절연층들은 다수의 하부 절연층들, 상기 하부 절연층들 상의 다수의 중간 절연층들, 및 상기 중간 절연층들 상의 다수의 상부 절연층들을 포함하고,
상기 중간 절연층들은 상기 하부 절연층들 및 상기 상부 절연층들 사이에 배치되고, 상기 하부 절연층들의 경도(hardness)는 상기 중간 절연층들보다 낮고, 상기 상부 절연층들의 경도는 상기 중간 절연층들보다 높은 반도체 소자. - 제9 항에 있어서,
상기 셀 필라의 상단은 제1 폭을 가지고, 상기 셀 필라의 상단과 실질적으로 동일한 수평 레벨에 있어서 상기 더미 필라는 제2 폭을 가지되,
상기 제1 폭은 상기 제2 폭보다 좁은 반도체 소자.
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