KR100530296B1 - 집적 회로 내에 거의 평탄한 유전체막을 제조하는 방법 - Google Patents
집적 회로 내에 거의 평탄한 유전체막을 제조하는 방법 Download PDFInfo
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- KR100530296B1 KR100530296B1 KR10-2002-7011717A KR20027011717A KR100530296B1 KR 100530296 B1 KR100530296 B1 KR 100530296B1 KR 20027011717 A KR20027011717 A KR 20027011717A KR 100530296 B1 KR100530296 B1 KR 100530296B1
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Abstract
Description
Claims (39)
- 금속층 상에 거의 평탄한 유전체막을 형성하는 방법에 있어서,소정의 최대 특징(feature) 간격을 갖는 금속층을 형성하는 단계와;TEOS계 절차를 사용하여 상기 금속층 상에 산화층을 형성하는 단계와;상기 산화층을 패싯 에칭하는 단계와;상기 산화층의 적어도 일부를 재유동시키는 단계를 포함하는 방법.
- 제1항에 있어서, 상기 금속층을 형성하는 단계는 0.3 ㎛의 최대 특징 간격으로 금속층을 형성하는 단계를 포함하는 방법.
- 제1항에 있어서, 상기 금속층을 형성하는 단계는 금속 러너를 형성하는 단계를 포함하고, 상기 산화층을 형성하는 단계는 상기 금속 러너의 하나 이상의 측벽 상에 산화물을 형성하는 방법.
- 제1항에 있어서, 상기 산화층을 형성하는 단계는 제1 증착 속도로 TEOS계 절차를 사용하여 상기 산화층의 일부를 형성하는 단계와, 제1 증착 속도보다 작은 제2 증착 속도로 TEOS계 절차를 사용하여 상기 산화층의 일부를 형성하는 단계를 포함하는 방법.
- 제1항에 있어서, 상기 산화층을 형성하는 단계는 보이드를 형성하는 경향을 갖는 제1 증착 속도로 TEOS계 절차를 사용하여 상기 산화층의 일부를 형성하는 단계와, 실질적으로 어떠한 보이드도 형성하지 않거나 제1 증착 속도보다 적은 보이드를 형성하는 경향을 갖는 제2 증착 속도로 TEOS계 절차를 사용하여 상기 산화층의 일부를 형성하는 단계를 포함하는 방법.
- 제1항에 있어서, 금속층 내의 금속 특징들 사이의 간극과 중첩되는 상기 산화층 내의 임의의 트렌치의 엄격도(severity)를 감소시키도록 상기 산화층을 패싯 에칭하는 단계를 더 포함하는 방법.
- 금속층 상에 거의 평탄한 유전체막을 형성하는 방법에 있어서,단지 약 0.3 ㎛의 최대 특징 간격을 갖는 상기 금속층을 형성하는 단계와;상기 금속층 상에 제1 증착 속도로 TEOS계 절차를 사용하여 제1 산화층을 형성하는 단계와;제1 증착 속도보다 작은 제2 증착 속도로 TEOS계 절차를 사용하여 상기 제1 산화층 상에 제2 산화층을 형성하는 단계와;상기 제2 산화층을 패싯 에칭하는 단계를 포함하는 방법.
- 제7항에 있어서, 상기 금속층 상에 측방향 에칭에 저항하는 막을 증착하는 단계를 더 포함하는 방법.
- 제8항에 있어서, 2개 이상의 산화물 스페이서들 사이에 대략 상기 소정의 최대 특징 간격보다 작은 유효 공간을 제공하도록 상기 금속층의 2개 이상의 금속 특징 상에 2개 이상의 산화물 스페이서를 형성하는 단계를 더 포함하는 방법.
- 제7항에 있어서, 제1 증착 속도는 보이드를 형성하는 경향을 갖고 제2 증착 속도는 제1 증착 속도보다 적은 보이드를 형성하는 경향을 갖는 방법.
- 제7항에 있어서, 상기 금속층 내의 금속 특징들 사이의 간극과 중첩되는 상기 제2 산화층 내의 임의의 트렌치의 엄격도를 감소시키도록 상기 제2 산화층을 패싯 에칭하는 단계를 더 포함하는 방법.
- 최대 특징 간격이 측방향 전기 커플링 문제 때문에 감소될 수 없는, 금속층 상에 거의 평탄한 유전체막을 제조하는 방법에 있어서,약 5 ㎛의 최대 특징 간격으로 금속 특징을 형성하는 단계와;약 5 ㎛보다 작은 유효 공간을 상기 금속층의 하나 이상의 금속 특징 상에 산화물 스페이서를 형성하는 단계와;상기 금속층 및 상기 산화물 스페이서 상에 실질적으로 보이드가 없는 산화층을 형성하도록 FLOW-FILL 절차를 수행하는 단계를 포함하는 방법.
- 제12항에 있어서, 상기 금속 패턴을 형성하는 단계는 금속층을 형성하는 단계와; 상기 금속층 상에 측방향 에칭에 저항하는 막을 증착하는 단계와; 상기 금속 패턴을 형성하도록 상기 금속층을 에칭하는 단계를 포함하는 방법.
- 제13항에 있어서, 측방향 에칭에 저항하는 상기 막은 TEOS, 산질화막인 방법.
- 제12항에 있어서, 상기 금속 패턴을 형성하는 단계는 큰 개방 영역을 회피하도록 넓은 세리프 특징을 구비한 패턴을 형성하는 단계를 포함하는 방법.
- 유전체층을 제조하는 방법에 있어서,보이드를 형성하는 경향을 갖는 제1 증착 속도로 유전체 재료를 증착하는 단계와;실질적으로 어떠한 보이드도 형성하지 않거나 제1 증착 속도보다 적은 보이드를 형성하는 경향을 갖는 제2 증착 속도로 상기 증착된 유전체 재료 상에 다른 유전체 재료를 증착하는 단계를 포함하는 방법.
- 제16항에 있어서, 상기 제1 증착 속도 및 상기 제2 증착 속도로 유전체 재료를 증착하는 단계는 TEOS계 절차를 사용하여 유전체 재료를 증착하는 단계를 포함하는 방법.
- 금속 레이아웃의 패턴 충전 밀도를 증가시키는 방법에 있어서,부동 금속으로 상기 금속 레이아웃의 개방 영역을 확인하여 충전하는 단계와;상기 금속 레이아웃의 노치를 확인하여 충전하는 단계와;상기 금속 레이아웃의 코너를 확인하여 충전하는 단계를 포함하는 방법.
- 제18항에 있어서, 상기 나열된 단계들은 나열된 순서대로 실행되는 방법.
- 제18항에 있어서, 상기 금속 레이아웃의 활성 금속 영역의 대향 모서리들 사이를 확인하여 충전하는 단계를 더 포함하는 방법.
- 계층적 금속 레이아웃 패턴 한정부의 패턴 충전 밀도를 증가시키는 방법에 있어서,제1 유도 금속 레이아웃 패턴 한정부를 한정하도록 상기 금속 레이아웃의 하나 이상의 노치, 내부 라인 및 코너를 확인하여 충전하는 단계와;상기 제1 유도 금속 레이아웃 패턴 한정부가 소정 패턴 충전 밀도를 갖는 지를 결정하는 단계와;제2 유도 금속 레이아웃 패턴 한정부를 한정하도록 상기 금속 레이아웃의 하나 이상의 노치 및 코너를 확인하여 충전하는 단계와;상기 제2 유도 금속 레이아웃 패턴 한정부가 소정 패턴 충전 밀도를 갖는 지를 결정하는 단계와;상기 제2 유도 금속 레이아웃이 상기 소정 패턴 충전 밀도를 갖지 않는다는 결정에 따라 상기 제2 유도 금속 레이아웃의 하나 이상의 모서리를 재한정하는 단계를 포함하는 방법.
- 제18항, 제19항, 제20항, 또는 제21항의 상기 방법을 실행하기 위해 지시부를 포함하는 컴퓨터로 판독 가능한 매체.
- 제1 내지 제17항 중의 어느 한항의 상기 방법의 실행에 기인하는 적어도 일부를 포함하는 집적 회로.
- 프로세서와;제1 내지 제17항 중의 어느 한항의 상기 방법의 실행에 기인하는 적어도 일부를 포함하는 적어도 하나의 집적 메모리 회로를 포함하는 시스템.
- 제24항에 있어서, 상기 프로세서는 디지털 신호 프로세서인 시스템.
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2001
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- 2001-03-07 AU AU2001249109A patent/AU2001249109A1/en not_active Abandoned
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- 2001-03-07 JP JP2001566176A patent/JP2004501503A/ja active Pending
- 2001-03-07 WO PCT/US2001/007336 patent/WO2001067500A2/en active IP Right Grant
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WO2001067500A3 (en) | 2002-02-14 |
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US7235865B2 (en) | 2007-06-26 |
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US20010053612A1 (en) | 2001-12-20 |
US7125800B2 (en) | 2006-10-24 |
WO2001067500A2 (en) | 2001-09-13 |
JP2004501503A (ja) | 2004-01-15 |
KR20020080474A (ko) | 2002-10-23 |
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