KR100830581B1 - 관통전극을 구비한 반도체 소자 및 그 형성방법 - Google Patents
관통전극을 구비한 반도체 소자 및 그 형성방법 Download PDFInfo
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- KR100830581B1 KR100830581B1 KR1020060109132A KR20060109132A KR100830581B1 KR 100830581 B1 KR100830581 B1 KR 100830581B1 KR 1020060109132 A KR1020060109132 A KR 1020060109132A KR 20060109132 A KR20060109132 A KR 20060109132A KR 100830581 B1 KR100830581 B1 KR 100830581B1
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Abstract
Description
Claims (24)
- 절연막이 형성된 활성면과 그 반대면인 비활성면을 가지며, 상기 절연막 상에 패드를 갖는 웨이퍼를 제공하는 단계와;상기 절연막 내에 제1 홀을 형성하는 단계와;상기 제1 홀의 내벽에 제1 홀 절연막을 형성하는 단계와;상기 제1 홀로부터 연장되며 상기 웨이퍼 내에 제2 홀을 형성하는 단계와;상기 제2 홀의 내벽에 제2 홀 절연막을 형성하는 단계;를 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제1항에 있어서,상기 제1 홀을 형성하는 단계는,상기 제1 홀의 하단부가 상기 웨이퍼의 활성면에 미치지 아니하도록 상기 절연막을 일부 제거하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제2항에 있어서,상기 제1 홀을 형성하는 단계는,상기 제1 홀이 상기 패드를 관통하도록 상기 패드를 일부 제거하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제1항에 있어서,상기 제1 홀 절연막을 형성하는 단계는,상기 제1 홀 절연막이 상기 패드의 일부를 피복하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제2항에 있어서,상기 제2 홀을 형성하는 단계는,상기 제1 홀 형성시 제거되지 않은 상기 절연막을 제거하고, 이와 동시에 상기 웨이퍼의 상기 활성면과 비활성면 사이를 일부 제거하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제5항에 있어서,상기 제1 홀 형성시 제거되지 않은 상기 절연막을 제거하는 단계는,상기 제1 홀의 하부벽의 일부가 잔류하도록 상기 절연막의 일부를 제거하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제5항에 있어서,상기 제1 홀 형성시 제거되지 않은 상기 절연막을 제거하는 단계는,상기 제1 홀의 하부벽이 잔류되지 않도록 상기 절연막을 제거하는 단계를 포 함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제1항에 있어서,상기 제2 홀 절연막을 형성하는 단계는,상기 제2 홀 절연막을 상기 제1 홀 절연막 상에 형성하고, 이와 동시에 상기 제2 홀의 측벽 및 하부벽에 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제1항에 있어서,상기 제1 홀 및 제2 홀을 전도체로 채워넣어 관통전극을 형성하는 단계와;상기 웨이퍼의 비활성면을 일부 제거하여 상기 관통전극의 일부를 노출시키는 단계;를 더 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제9항에 있어서,상기 관통전극의 일부를 노출시키는 단계는:상기 관통전극의 하단부가 노출되지 않도록 상기 웨이퍼 중에서 상기 비활성면과 활성면 사이를 제거하는 단계와;상기 관통전극의 하단부가 돌출되도록 상기 웨이퍼를 일부 제거하는 단계;를 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제9항에 있어서,상기 관통전극의 일부를 노출시키는 단계는,상기 관통전극의 하단부가 일부 제거되도록 상기 웨이퍼 중에서 상기 비활성면과 활성면 사이를 제거하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 제11항에 있어서,상기 관통전극의 일부를 노출시키는 단계 이후에,상기 관통전극의 하단부에 접속단자를 부착시키는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 형성방법.
- 절연막이 형성된 활성면과 그 반대면인 비활성면을 가지는 웨이퍼와;상기 절연막 상에 형성된 패드와;상기 절연막 상에 형성되어 상기 패드의 일부는 덮는 보호막과;상기 절연막을 관통하는 제1 홀과, 상기 제1 홀로부터 연장되며 상기 웨이퍼를 관통하는 제2 홀을 포함하는 관통전극 홀과;상기 제1 홀의 내벽에 형성된 제1 홀 절연막과, 상기 제1 홀 및 제2 홀의 내벽에 형성된 제2 홀 절연막을 포함하는 홀 절연막과; 그리고상기 관통전극 홀에 형성된 관통전극;을 포함하는 것을 특징으로 하는 반도체 소자.
- 제13항에 있어서,상기 제1 홀은 그 하단부가 상기 활성면에 미치지 아니하는 것을 특징으로 하는 반도체 소자.
- 제14항에 있어서,상기 제1 홀은 제1 측벽과 하부벽을 포함하고, 상기 제2 홀은 상기 하부벽으로부터 연장된 제2 측벽을 포함하는 것을 특징으로 하는 반도체 소자.
- 제15항에 있어서,상기 제1 홀 절연막은 상기 제1 측벽과 하부벽을 덮으며; 상기 제2 홀 절연막은 상기 제1 홀 절연막 및 상기 제2 측벽을 덮으므로써,상기 제1 홀에는 상기 제1 및 제2 홀 절연막을 포함하는 다중 절연막이 형성되고; 상기 제2 홀에는 상기 제2 홀 절연막을 포함하는 단일 절연막이 형성된 것을 특징으로 하는 반도체 소자.
- 제14항에 있어서,상기 제1 홀은 제1 측벽을 포함하고, 상기 제2 홀은 상기 제1 측벽으로부터 연장된 제2 측벽을 포함하는 것을 특징으로 하는 반도체 소자.
- 제17항에 있어서,상기 제1 홀 절연막은 상기 제1 측벽을 덮으며; 상기 제2 홀 절연막은 상기 제1 홀 절연막 및 상기 제2 측벽을 덮으므로써,상기 제1 홀에는 상기 제1 및 제2 홀 절연막을 포함하는 다중 절연막이 형성되고; 상기 제2 홀에는 상기 제2 홀 절연막을 포함하는 단일 절연막이 형성된 것을 특징으로 하는 반도체 소자.
- 제13항에 있어서,상기 제1 홀은 제1 폭을 가지며, 상기 제2 홀은 상기 제1 폭과 동일하거나 작은 제2 폭을 가지는 것을 특징으로 하는 반도체 소자.
- 제13항에 있어서,상기 관통전극은 상기 활성면으로부터 돌출되고 상기 패드를 관통하는 상단부와, 상기 비활성면을 통해 노출된 하단부를 포함하는 것을 특징으로 하는 반도체 소자.
- 제20항에 있어서,상기 관통전극의 하단부는 상기 비활성면으로부터 돌출된 것을 특징으로 하는 반도체 소자.
- 제13항에 있어서,상기 관통전극의 하단부와 전기적으로 연결되는 접속단자를 더 포함하는 것을 특징으로 하는 반도체 소자.
- 제13항에 있어서,상기 홀 절연막과 관통전극 사이에 기저층을 더 포함하는 것을 특징으로 하는 반도체 소자.
- 제13항에 있어서,상기 홀 절연막은 상기 보호막에 의해 덮히지 아니한 상기 패드의 나머지 일부를 덮는 것을 특징으로 하는 반도체 소자.
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