KR20120035854A - 그래핀 배선 및 그 제조 방법 - Google Patents
그래핀 배선 및 그 제조 방법 Download PDFInfo
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- KR20120035854A KR20120035854A KR1020110092988A KR20110092988A KR20120035854A KR 20120035854 A KR20120035854 A KR 20120035854A KR 1020110092988 A KR1020110092988 A KR 1020110092988A KR 20110092988 A KR20110092988 A KR 20110092988A KR 20120035854 A KR20120035854 A KR 20120035854A
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Abstract
Description
도 2a 내지 도 6b는 제1 실시예에 따른 그래핀 배선의 제조 단계들을 도시하는 단면도이다.
도 7a 내지 도 8b는 제1 실시예에 따른 그래핀 배선의 변형예에 있어서의 제조 단계들을 도시하는 단면도이다.
도 9는 제2 실시예에 따른 그래핀 배선의 구조를 도시하는 단면도이다.
도 10은 제2 실시예에 따른 그래핀 배선의 제조 단계를 도시하는 단면도이다.
도 11은 제3 실시예에 따른 그래핀 배선의 구조를 도시하는 단면도이다.
도 12는 제3 실시예에 따른 그래핀 배선의 제조 단계를 도시하는 단면도이다.
도 13은 제4 실시예에 따른 그래핀 배선의 구조를 도시하는 단면도이다.
도 14a 및 도 14b는 제4 실시예에 따른 그래핀 배선의 제조 단계를 도시하는 단면도이다.
13: 배선층 절연막
15: 제1 촉매막
16: 제1 그래핀층
16a 내지 16e: 그래핀 시트
18: 제2 촉매막
19: 제2 그래핀층
23: 제2 콘택트 플러그
30: 배선 트렌치
Claims (20)
- 그래핀 배선으로서,
배선 트렌치를 포함하는 제1 절연막,
상기 배선 트렌치의 양측면의 상기 제1 절연막 상에 형성된 제1 촉매막, 및
상기 배선 트렌치의 양측면의 상기 제1 촉매막 상에 형성되고, 상기 양측면에 대하여 수직 방향으로 적층된 그래핀 시트들을 포함하는 제1 그래핀층을 포함하는, 그래핀 배선. - 제1항에 있어서,
상기 배선 트렌치의 양측면의 상기 제1 그래핀층 상에 형성된 제2 촉매막, 및
상기 배선 트렌치의 양측면의 상기 제2 촉매막 상에 형성되고, 상기 양측면에 대하여 수직 방향으로 적층된 복수의 그래핀 시트를 포함하는 제2 그래핀층을 더 포함하는, 그래핀 배선. - 제1항에 있어서,
상기 제1 그래핀층에 전기적으로 접속되는 콘택트 플러그를 더 포함하고,
상기 그래핀 시트들의 단부들은 상기 콘택트 플러그와 직접 접촉되는, 그래핀 배선. - 제3항에 있어서, 상기 제1 촉매막의 단부는 상기 콘택트 플러그와 직접 접촉되는, 그래핀 배선.
- 제3항에 있어서, 상기 배선 트렌치의 양측면의 상기 제1 절연막과 상기 제1 촉매막 사이에 형성된 제1 촉매 하부막을 더 포함하고, 상기 제1 촉매 하부막의 단부는 상기 콘택트 플러그와 직접 접촉되는, 그래핀 배선.
- 제1항에 있어서, 상기 제1 그래핀층은 상기 양측면에 대하여 수직 방향으로 적층된 100매 정도까지의 그래핀 시트를 포함하는, 그래핀 배선.
- 제1항에 있어서, 상기 제1 촉매막은 연속적인 막을 포함하는, 그래핀 배선.
- 제6항에 있어서, 상기 제1 촉매막의 막 두께는 0.5nm 이상인, 그래핀 배선.
- 제1항에 있어서, 상기 제1 촉매막 및 상기 제1 그래핀층의 상단부들은 상기 배선 트렌치로부터 돌출되는, 그래핀 배선.
- 제9항에 있어서, 상기 제1 절연막 상에 형성되고, 상기 제1 촉매막 및 상기 제1 그래핀층의 상단부들보다 낮은 하면, 및 상기 제1 촉매막 및 상기 제1 그래핀층의 상단부들보다 높은 상면을 갖는 캡막을 더 포함하는, 그래핀 배선.
- 제1항에 있어서, 상기 배선 트렌치의 양측면의 상기 제1 그래핀층 상에 형성되고, 상기 배선 트렌치의 중앙부를 충전하는 제2 절연막을 더 포함하는, 그래핀 배선.
- 제1항에 있어서, 상기 제1 촉매막 및 상기 제1 그래핀층의 상단부들 및 하단부들은 둥글고 단차가 있는, 그래핀 배선.
- 그래핀 배선으로서,
배선 트렌치를 포함하는 절연막, 및
상기 배선 트렌치의 양측면의 상기 절연막 상에 형성되고, 상기 양측면에 대하여 수직 방향으로 적층된 복수의 그래핀 시트를 포함하고, 상기 배선 트렌치를 충전하는 그래핀층들을 포함하고,
상기 그래핀층들은,
상기 배선 트렌치의 양측면의 상기 절연막 상의 제1 촉매막 상에 형성된 제1 그래핀층, 및
상기 배선 트렌치의 양측면의 상기 제1 그래핀층 상의 제2 촉매막 상에 형성된 제2 그래핀층을 포함하는, 그래핀 배선. - 제13항에 있어서,
상기 제1 그래핀층 및 상기 제2 그래핀층에 전기적으로 접속된 콘택트 플러그를 더 포함하고,
상기 그래핀 시트들의 단부들은 상기 콘택트 플러그에 직접 접촉되는, 그래핀 배선. - 제13항에 있어서, 상기 제1 촉매막 및 상기 제2 촉매막의 단부들은 상기 콘택트 플러그에 직접 접촉되는, 그래핀 배선.
- 제14항에 있어서,
상기 배선 트렌치의 양측면의 상기 제1 절연막과 상기 제1 촉매막 사이에 형성된 제1 촉매 하부막, 및
상기 배선 트렌치의 양측면의 상기 제1 그래핀층과 상기 제2 촉매막 사이에 형성된 제2 촉매 하부막을 더 포함하고,
상기 제1 촉매 하부막 및 상기 제2 촉매 하부막의 단부들은 상기 콘택트 플러그에 직접 접촉되는, 그래핀 배선. - 제13항에 있어서, 상기 제1 그래핀층 및 상기 제2 그래핀층 각각은 상기 양측면에 대하여 수직 방향으로 적층된 100매 정도까지의 그래핀 시트를 포함하는, 그래핀 배선.
- 제13항에 있어서, 상기 제1 촉매막 및 상기 제2 촉매막 각각은 연속적인 막을 포함하는, 그래핀 배선.
- 제13항에 있어서, 상기 제1 촉매막, 상기 제1 그래핀층, 상기 제2 촉매막, 및 상기 제2 그래핀층의 상단부들은 상기 배선 트렌치로부터 돌출되는, 그래핀 배선.
- 그래핀 배선 제조 방법으로서,
절연막에 배선 트렌치를 형성하는 단계,
상기 배선 트렌치의 양측면의 상기 절연막 상에 제1 촉매막을 형성하는 단계, 및
상기 배선 트렌치의 양측면의 상기 제1 촉매막 상에, 상기 양측면에 대하여 수직 방향으로 적층된 그래핀 시트들을 포함하는 제1 그래핀층을 형성하는 단계를 포함하는, 그래핀 배선 제조 방법.
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