KR20220117841A - 순차적인 플라즈마 및 열적 처리 - Google Patents
순차적인 플라즈마 및 열적 처리 Download PDFInfo
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Abstract
Description
[0008] 도 1은 본원에서 설명되는 실시예들에 따른 방법의 일 실시예의 프로세스 흐름도를 묘사하고;
[0009] 도 2a는 하나 이상의 실시예들에 따른 디바이스의 단면도를 예시하고;
[0010] 도 2b는 하나 이상의 실시예들에 따른, 도 2a의 기판의 구역(103)의 단면도를 예시하고;
[0011] 도 3은 하나 이상의 실시예들에 따른 디바이스의 단면도를 예시하고;
[0012] 도 4는 하나 이상의 실시예들에 따른 디바이스의 단면도를 예시하고;
[0013] 도 5는 하나 이상의 실시예들에 따른 디바이스의 단면도를 예시하고; 그리고
[0014] 도 6은 하나 이상의 실시예들에 따른 클러스터 툴을 예시한다.
Claims (20)
- 프로세싱 방법으로서,
막 스택의 리세스된 구역에 실리콘-함유 유전체 층을 선택적으로 증착하는 단계 ― 상기 막 스택은 제1 재료 층과 제2 재료 층의 교번하는 층들을 포함하고, 그리고 상기 막 스택을 관통해 연장되는 메모리 홀을 가짐 ―;
500℃ 이하의 온도 및 1 Torr 미만의 압력에서 고밀도 플라즈마에 상기 실리콘-함유 유전체 층을 노출시키는 단계; 및
4 Å/min 미만의 습식 에칭 레이트를 갖는 실리콘-함유 유전체 막을 제공하기 위해 800℃ 초과의 온도에서 상기 실리콘-함유 유전체 층을 어닐링하는 단계를 포함하는,
프로세싱 방법. - 제1 항에 있어서,
상기 제2 재료 층은 옥사이드 층을 포함하는,
프로세싱 방법. - 제1 항에 있어서,
상기 리세스된 구역은 상기 메모리 홀을 통해 상기 제2 재료 층에 비해 상기 제1 재료 층을 리세싱함으로써 형성되는,
프로세싱 방법. - 제1 항에 있어서,
상기 제1 재료 층은, 폴리실리콘, 실리콘 나이트라이드, 실리콘 카바이드, 실리콘 카보나이트라이드, 게르마늄, 및 티타늄 나이트라이드 중 하나 이상을 포함하는,
프로세싱 방법. - 제1 항에 있어서,
상기 실리콘-함유 유전체 층은, 실리콘 나이트라이드(SiN), 실리콘 카보나이트라이드(SiCN), 실리콘 옥시나이트라이드, 실리콘 옥시카보나이트라이드, 실리콘 보라이드(SiB), 및 실리콘 보론 나이트라이드(SiBN) 중 하나 이상을 포함하는,
프로세싱 방법. - 제5 항에 있어서,
상기 실리콘-함유 유전체 층은 실리콘 나이트라이드를 포함하는,
프로세싱 방법. - 제1 항에 있어서,
상기 실리콘-함유 유전체 층을 선택적으로 증착하는 단계는 500℃ 미만의 온도에서의 증착을 포함하는,
프로세싱 방법. - 제1 항에 있어서,
상기 실리콘-함유 유전체 막은 1 Å/min 미만의 습식 에칭 레이트를 갖는,
프로세싱 방법. - 제1 항에 있어서,
상기 고밀도 플라즈마는, 헬륨(He), 수소(H2), 네온(Ne), 아르곤(Ar), 크립톤(Kr), 및 크세논(Xe) 중 하나 이상으로부터 선택되는,
프로세싱 방법. - 제1 항에 있어서,
상기 실리콘-함유 유전체 막은 0 Å 초과 내지 25 Å의 범위의 두께를 갖는,
프로세싱 방법. - 제1 항에 있어서,
상기 방법은 진공을 파괴하지 않으면서 프로세싱 챔버에서 수행되는,
프로세싱 방법. - 명령들을 포함하는 비-일시적 컴퓨터 판독가능 매체로서,
상기 명령들은, 프로세싱 챔버의 제어기에 의해 실행될 때, 상기 프로세싱 챔버로 하여금 동작들을 수행하게 하며,
상기 동작들은,
막 스택의 리세스된 구역에 실리콘-함유 유전체 층을 선택적으로 증착하는 동작 ― 상기 막 스택은 제1 재료 층과 제2 재료 층의 교번하는 층들을 포함하고, 그리고 상기 막 스택을 관통해 연장되는 메모리 홀을 가짐 ―;
500℃ 이하의 온도 및 1 Torr 미만의 압력에서 고밀도 플라즈마에 상기 실리콘-함유 유전체 층을 노출시키는 동작; 및
4 Å/min 미만의 습식 에칭 레이트를 갖는 실리콘-함유 유전체 막을 제공하기 위해 800℃ 초과의 온도에서 상기 실리콘-함유 유전체 층을 어닐링하는 동작인,
비-일시적 컴퓨터 판독가능 매체. - 제12 항에 있어서,
상기 제1 재료 층은 옥사이드 층을 포함하는,
비-일시적 컴퓨터 판독가능 매체. - 제12 항에 있어서,
상기 리세스된 구역은 상기 메모리 홀을 통해 상기 제1 재료 층에 비해 상기 제2 재료 층을 리세싱함으로써 형성되는,
비-일시적 컴퓨터 판독가능 매체. - 제12 항에 있어서,
상기 제2 재료 층은, 폴리실리콘, 실리콘 나이트라이드, 실리콘 카바이드, 실리콘 카보나이트라이드, 게르마늄, 및 티타늄 나이트라이드 중 하나 이상을 포함하는,
비-일시적 컴퓨터 판독가능 매체. - 제12 항에 있어서,
상기 실리콘-함유 유전체 층은, 실리콘 나이트라이드(SiN), 실리콘 카보나이트라이드(SiCN), 실리콘 옥시나이트라이드, 실리콘 옥시카보나이트라이드, 실리콘 보라이드(SiB), 및 실리콘 보론 나이트라이드(SiBN) 중 하나 이상을 포함하는,
비-일시적 컴퓨터 판독가능 매체. - 제16 항에 있어서,
상기 실리콘-함유 유전체 층은 실리콘 나이트라이드를 포함하는,
비-일시적 컴퓨터 판독가능 매체. - 제12 항에 있어서,
상기 실리콘-함유 유전체 층을 선택적으로 증착하는 동작은 500℃ 미만의 온도에서의 증착을 포함하는,
비-일시적 컴퓨터 판독가능 매체. - 제12 항에 있어서,
상기 실리콘-함유 유전체 막은 50 Å/min 초과의 습식 에칭 레이트를 갖는,
비-일시적 컴퓨터 판독가능 매체. - 제12 항에 있어서,
상기 고밀도 플라즈마는, 헬륨(He), 수소(H2), 네온(Ne), 아르곤(Ar), 크립톤(Kr), 및 크세논(Xe) 중 하나 이상으로부터 선택되는,
비-일시적 컴퓨터 판독가능 매체.
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