KR20090079618A - 반도체 디바이스 및 그 제조 방법 - Google Patents
반도체 디바이스 및 그 제조 방법 Download PDFInfo
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- KR20090079618A KR20090079618A KR1020080005728A KR20080005728A KR20090079618A KR 20090079618 A KR20090079618 A KR 20090079618A KR 1020080005728 A KR1020080005728 A KR 1020080005728A KR 20080005728 A KR20080005728 A KR 20080005728A KR 20090079618 A KR20090079618 A KR 20090079618A
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Abstract
Description
Claims (23)
- 평평하게 형성된 제 1면 및 상기 제 1면의 반대면으로서 평평하게 형성된 제2면을 갖고, 상기 제 1면에 다수의 본드 패드를 갖는 반도체 다이;상기 본드 패드의 에지를 덮도록 상기 반도체 다이의 제 1면에 형성되는 패시베이션층;상기 본드 패드가 형성된 영역에서 상기 반도체 다이를 관통하며, 단부에 상기 반도체 다이의 제 2면으로 돌출되는 돌출부를 갖는 관통 전극;상기 돌출부를 덮도록 상기 반도체 다이의 제 2면에 형성되는 금속층; 및상기 금속층을 덮도록 상기 반도체 다이의 제 2면에 형성되는 솔더를 포함하는 것을 특징으로 하는 반도체 디바이스.
- 제 1항에 있어서,상기 관통 전극은 금, 은 및 구리 중에서 선택된 어느 하나 또는 이들의 조합으로 형성되는 것을 특징으로 하는 반도체 디바이스.
- 제 1항에 있어서,상기 돌출부는 상기 반도체 다이의 제 2면으로부터 상기 제 2면에 수직한 방향으로 5㎛ 내지 50㎛로 돌출되어 있는 것을 특징으로 하는 반도체 디바이스.
- 제 1항에 있어서,상기 금속층은 상호간에 이격되어 배열된 것을 특징으로 하는 반도체 디바이스.
- 제 1항에 있어서,상기 솔더는 상호간에 이격되어 형성되는 것을 특징으로 하는 반도체 디바이스.
- 제 1항에 있어서,상기 관통 전극의 돌출부와 상기 금속층 사이에는 UBM이 더 형성되어 있는 것을 특징으로 하는 반도체 디바이스.
- 평평하게 형성된 제 1면 및 상기 제 1면의 반대면으로서 평평하게 형성된 제2면을 갖고, 상기 제 1면에 다수의 본드 패드를 갖는 반도체 다이;상기 본드 패드의 에지를 덮으면서 상기 반도체 다이의 제 1면에 형성되는 패시베이션층;상기 본드 패드가 형성된 영역에서 상기 반도체 다이를 관통하며, 그 단부에 상기 반도체 다이의 제 2면으로 돌출되는 돌출부를 갖는 관통 전극;일단이 상기 관통 전극의 돌출부를 덮고, 타단이 상기 돌출부로부터 연장되어 상기 반도체 다이의 제 2면에 형성되는 연장부를 갖는 UBM;상기 UBM의 상기 연장부를 제외한 영역을 덮으면서 상기 반도체 다이의 제 2면에 형성되는 금속층; 및상기 금속층을 덮으면서 상기 UBM을 따라 접하도록 상기 반도체 다이의 제 2면에 형성되는 솔더를 포함하는 것을 특징으로 하는 반도체 디바이스.
- 제 7항에 있어서,상기 UBM의 연장부는 상기 반도체 다이의 제 2면에서 상기 관통 전극에 수직한 일방향으로 배열되는 것을 특징으로 하는 반도체 디바이스.
- 상부에 다수의 본드 패드를 갖고, 상기 본드 패드가 형성된 영역에서 상기 웨이퍼를 관통하는 관통 전극을 갖는 웨이퍼를 구비하는 웨이퍼 구비 단계;상기 웨이퍼의 하면을 식각하여 상기 관통 전극의 단부인 돌출부가 노출되도록 하고, 제 1면 및 그 반대면인 제 2면을 갖는 반도체 다이를 구비하는 웨이퍼 백 에칭 단계;상기 돌출부를 덮도록 상기 웨이퍼의 제 2면에 금속층을 형성하는 금속층 형성 단계; 및상기 금속층을 덮도록 상기 웨이퍼의 제 2면에 솔더를 형성하는 솔더 형성 단계를 포함하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 9항에 있어서,상기 웨이퍼 백 에칭 단계는 상기 관통 전극의 돌출부가 5㎛ 내지 50㎛로 노출되도록 상기 웨이퍼의 제 2면을 식각하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 9항에 있어서,상기 웨이퍼 백 에칭 단계는 건식 식각 방법으로 이루어지는 것을 특징으로하는 반도체 디바이스의 제조 방법.
- 제 9항에 있어서,상기 웨이퍼 백 에칭 단계는 식각 가스로서 SF6 또는 CF4를 사용하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 9항에 있어서,상기 금속층 형성 단계는 상기 돌출부의 주변에만 상기 금속층을 형성하고, 상기 금속층은 상호간에 이격되어 형성되도록 하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 9항에 있어서,상기 금속층 형성 단계는 전해 도금 방법을 이용하여 이루어지는 것을 특징 으로 하는 반도체 디바이스의 제조 방법.
- 제 9항에 있어서,상기 금속층 형성 단계는 상기 금속층을 금, 은, 구리 중에서 선택된 적어도 어느 하나 또는 이들의 조합으로 형성하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 9항에 있어서,상기 솔더 형성 단계는 상기 금속층의 주변에만 상기 솔더를 형성하고, 상기 솔더를 상호간에 이격되도록 형성하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 9항에 있어서,상기 솔더 형성 단계는 전해 도금 방법을 이용하여 이루어지는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 9항에 있어서,상기 솔더 형성 단계는 상기 솔더를 주석으로 형성하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 상부면에 다수의 본드 패드를 갖고, 상기 본드 패드가 형성된 영역에서 관통되는 관통 전극을 갖는 웨이퍼를 구비하는 웨이퍼 구비 단계;상기 웨이퍼의 하부면을 식각하여 상기 관통 전극의 단부인 돌출부를 노출시키도록 하는 웨이퍼 백 에칭 단계;상기 관통 전극의 돌출부를 덮도록 상기 웨이퍼의 하부면에 UBM층을 형성하는 UBM층 형성 단계;상기 웨이퍼의 하부면에 전면적으로 포토레지스트를 도포하는 포토레지스트 도포 단계;상기 포토레지스트를 노광하고 현상하여 포토레지스트에 패턴을 형성하는 포토레지스트 패턴 단계;상기 포토레지스트의 패턴에 금속을 채워넣어 상기 돌출부를 덮는 금속층 및 솔더를 형성하는 금속층 및 솔더 형성 단계;상기 포토레지스트를 제거하는 포토레지스트 제거 단계; 및상기 UBM층을 패턴하여 전기적으로 독립한 UBM을 형성하는 UBM층 식각 단계를 포함하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 19항에 있어서,상기 금속층 및 솔더 형성 단계는 상기 금속층을 전해 도금 방법을 이용하여 형성하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 19항에 있어서,상기 금속층 및 솔더 형성 단계는 상기 솔더를 전해 도금 방법을 이용하여 형성하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 19항에 있어서,상기 금속층 및 솔더 형성 단계는 상기 UBM층을 시드층(seed layer)으로 하는 전해 도금 방법으로 이루어지는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 19항에 있어서,상기 UBM층 식각 단계는 상기 웨이퍼의 하부면을 따라 상기 관통 전극의 돌출부로부터 일방향으로 연장되어 형성되는 연장부를 갖는 UBM을 형성하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
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