KR20090052019A - 카메라 모듈 및 그 제조방법 - Google Patents
카메라 모듈 및 그 제조방법 Download PDFInfo
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- KR20090052019A KR20090052019A KR1020070118523A KR20070118523A KR20090052019A KR 20090052019 A KR20090052019 A KR 20090052019A KR 1020070118523 A KR1020070118523 A KR 1020070118523A KR 20070118523 A KR20070118523 A KR 20070118523A KR 20090052019 A KR20090052019 A KR 20090052019A
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Abstract
Description
Claims (20)
- 렌즈부가 어레이를 형성하는 제1 웨이퍼를 준비하는 단계;상기 렌즈부에 각각 대응하는 이미지 센서 칩을 포함하는 이미지 센서 CSP가 어레이를 형성하는 제2 웨이퍼를 준비하는 단계;상기 제2 웨이퍼 상에 상기 제1 웨이퍼를 적층(stack)하는 단계;상기 렌즈부 사이를 경계로 하여 상기 이미지 센서 칩의 상부면을 노출하는 트렌치를 형성하도록 상기 제1 웨이퍼 및 상기 제2 웨이퍼를 제1 커팅하는 단계;상기 트렌치에 하우징을 형성하는 제1 물질을 충진하는 단계; 및상기 렌즈부 사이를 경계로 하여 상기 제1 물질 및 상기 이미지 센서 칩을 제2 커팅하는 단계;를 포함하는 카메라 모듈의 제조방법.
- 제1항에 있어서, 상기 제2 웨이퍼를 준비하는 단계에서 상기 이미지 센서 칩은 관통 비아 접속 구조를 포함하는 이미지 센서 칩인 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제2항에 있어서, 상기 제2 웨이퍼를 준비하는 단계는 상기 이미지 센서 칩의 상부면에 접지 패드를 형성하는 단계를 더 포함하는 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제3항에 있어서, 상기 제1 커팅하는 단계는 상기 이미지 센서 칩의 상부면에 형성된 상기 접지 패드를 노출하는 상기 트렌치를 형성하도록 제1 커팅하는 단계를 포함하는 카메라 모듈의 제조방법.
- 제3항에 있어서, 상기 제2 커팅하는 단계는 인접하는 상기 접지 패드 사이의 경계를 제2 커팅하는 단계를 포함하는 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제1항에 있어서, 상기 제1 물질을 충진하는 단계는 상기 렌즈부의 개구 구조를 형성하기 위하여 광이 차단되는 상기 렌즈부의 외곽부까지 상기 제1 물질을 충진하는 단계를 포함하는 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제1항에 있어서, 상기 제1 물질을 충진하는 단계에서 상기 제1 물질은 도전성 물질을 포함하는 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제1항에 있어서, 상기 제1 물질을 충진하는 단계에서 상기 제1 물질은 광차단성 물질을 포함하는 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제1항에 있어서, 상기 제1 물질을 충진하는 단계에서 상기 제1 물질은 도전성 및 광차단성 물질을 포함하는 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제1항에 있어서, 상기 제1 물질을 충진하는 단계는 상기 제1 물질을 디스펜싱 또는 몰딩의 방법으로 충진하는 단계를 포함하는 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제1항에 있어서, 상기 제1 물질을 충진하는 단계는 상기 제1 물질을 화학 기상 증착법 또는 물리적 기상 증착법의 방법으로 충진하는 단계를 포함하는 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제1항에 있어서, 상기 제1 커팅하는 단계는 제1 폭을 가지는 트렌치를 형성하도록 상기 제1 폭의 커팅 블레이드로 상기 제1 웨이퍼 및 상기 제2 웨이퍼를 제1 커팅하는 단계를 포함하는 것을 특징으로 하는 카메라 모듈 제조방법.
- 제12항에 있어서, 상기 제2 커팅하는 단계는 상기 제1 폭보다 작은 제2폭을 가지는 커팅 블레이드로 상기 제1 물질 및 상기 이미지 센서 칩을 제2 커팅하는 단계를 포함하는 것을 특징으로 하는 카메라 모듈 제조방법.
- 제12항에 있어서, 상기 제2 커팅하는 단계는 상기 제1 폭보다 작은 제2폭을 가지는 레이저 또는 워터-제트(water-jet)로 상기 제1 물질 및 상기 이미지 센서 칩을 제2 커팅하는 단계를 포함하는 것을 특징으로 하는 카메라 모듈 제조방법.
- 제1항에 있어서, 상기 제1 웨이퍼를 준비하는 단계는 상기 렌즈부와 상기 이미지 센서 칩 사이의 촛점거리를 유지하기 위하여 상기 제1 웨이퍼의 하부면에 스페이서 패턴을 형성하는 단계를 더 포함하는 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제1항에 있어서, 상기 제2 웨이퍼를 준비하는 단계는 상기 이미지 센서 칩의 상부면에 커버 글래스 층(cover glass layer)을 형성하는 단계를 더 포함하는 것을 특징으로 하는 카메라 모듈의 제조방법.
- 제1항에 있어서, 상기 이미지 센서 칩의 하단면에 솔더볼을 형성하는 단계를 더 포함하는 카메라 모듈의 제조방법.
- 하나 이상의 렌즈를 포함하는 렌즈부;상기 렌즈부를 통과한 광이 결상되는 이미지 영역을 구비하는 이미지 센서 칩을 포함하는 이미지 센서 CSP; 및상기 이미지 센서 칩의 상부면에 접합되고 도전성 물질을 포함하여 형성되는 하우징;을 포함하고,상기 이미지 센서 칩의 상부면에 접지 패드가 더 형성되고, 상기 하우징은 상기 접지 패드와 접촉되는 것을 특징으로 하는 카메라 모듈.
- 제18항에 있어서, 상기 렌즈와 상기 이미지 센서 칩 사이의 촛점거리를 유지하기 위하여 상기 렌즈부와 상기 이미지 센서 CSP 사이에 형성된 스페이서를 더 포함하는 카메라 모듈.
- 제18항에 있어서, 상기 이미지 센서 CSP는 상기 이미지 센서 칩 상에 형성된 커버 글래스 층을 더 포함하고, 상기 접지 패드는 상기 커버 글래스 층에 의해 노출된 상기 이미지 센서 칩의 상부면에 배치되며, 상기 하우징의 측면은 상기 이미지 센서 칩의 측면과 동일 평면(coplanar)을 형성하는 것을 특징으로 하는 카메라 모듈.
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