JP2009277732A - 固体撮像装置の製造方法 - Google Patents
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Abstract
【解決手段】光入射面側にオンチップカラーフィルタ19及びオンチップマイクロレンズ21aを形成した後に、前記光入射面側にパッド部の開口部20を形成する工程を有する。
【選択図】図8
Description
本実施形態に係る固体撮像装置1は、図1に示すように、撮像領域3と周辺回路6、7と周辺の複数のパッド部5を有して構成される。
この構成体を形成する方法としては、例えば、シリコン半導体基板の一の面側に複数の画素を形成し、その一の面側上に多層配線層9を形成し、さらに接着層15を介して例えばシリコン基板による支持基板8を張り合わせ、シリコン半導体基板の他方の面側からシリコン半導体層10として残る厚さまで除去する方法がある。
Claims (9)
- 光電変換部を形成した半導体基板の一方の面側に層間絶縁膜を介して信号回路が形成され、他方の面側から前記光電変換部に光が入射される固体撮像装置の製造方法であって、
光入射面側にオンチップカラーフィルタ及びオンチップマイクロレンズを形成した後に、前記光入射面側にパッド部の開口部を形成する工程を有する
ことを特徴とする固体撮像装置の製造方法。 - 前記オンチップカラーフィルタ及びオンチップマイクロレンズは、それぞれ有機系膜を塗布する工程を有して形成する
ことを特徴とする請求項1記載の固体撮像装置の製造方法。 - 前記オンチップマイクロレンズの形成工程においては、
前記オンチップカラーフィルタを含む面上に、パッド部を形成すべき部分に開口を有する有機系膜によるオンチップマイクロレンズ部材を形成する工程と、
前記オンチップマイクロレンズ部材上の所要部にレンズ形状部材を形成する工程と、
全面エッチバックして、前記オンチップマイクロレンズ部材に1次のオンチップマイクロレンズを転写し、同時に前記オンチップマイクロレンズ部材の開口を通じて、上面から前記半導体基板の途中までエッチングして1次の開口部を形成する工程を有する
ことを特徴とする請求項2記載の固体撮像装置の製造方法。 - 前記1次の開口部を形成した後、
前記1次のオンチップマイクロレンズおよび前記オンチップマイクロレンズ部材の面上に、前記1次の開口部を除いてレジストマスクを形成する工程と、
前記レジストマスクを介して、前記1次の開口部内の前記半導体基板のみを選択的にドライエッチングで除去して2次の開口部を形成する工程を有する
ことを特徴とする請求項3記載の固体撮像装置の製造方法。 - 前記2次の開口部を形成した後、
前記レジストマスクを除去する工程を有する
ことを特徴とする請求項4記載の固体撮像装置の製造方法。 - 前記レジストマスクを除去した後、
全面エッチバックして最終的なオンチップマイクロレンズを形成し、同時に前記2次の開口部の底面の前記層間絶縁膜を除去してワイヤボンディングされる前記信号回路が露出する最終的な開口部を形成する工程を有する
ことを特徴とする請求項5記載の固体撮像装置の製造方法。 - 前記1次の開口部内の半導体基板のエッチングを、SF6 とO2 のガス系を用いて行い、
前記レジストマスクの除去を、有機溶剤、もしくはアッシング処理と有機溶剤により行う
ことを特徴とする請求項6記載の固体撮像装置の製造方法。 - 前記オンチップマイクロレンズ上に形成したレジストマスクを介して、パッド部に対応する部分の前記半導体基板を底部まで選択的にドライエッチングで除去して1次の開口部を形成する工程と、
前記レジストマスクを、有機溶剤、もしくはアッシング処理と有機溶剤で除去する工程を有する
ことを特徴とする請求項2記載の固体撮像装置の製造方法。 - 前記レジストマスクを除去した後、
全面エッチバックして最終的なオンチップマイクロレンズを形成し、同時に前記開口部の底面の前記層間絶縁膜を除去してワイヤボンディングされる前記信号回路が露出する最終的な開口部を形成する工程を有する
ことを特徴とする請求項8記載の固体撮像装置の製造方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008125189A JP5422914B2 (ja) | 2008-05-12 | 2008-05-12 | 固体撮像装置の製造方法 |
TW098112380A TWI409969B (zh) | 2008-05-12 | 2009-04-14 | 製造固態成像器件之方法及製造電子裝置之方法 |
EP09005639A EP2120264B1 (en) | 2008-05-12 | 2009-04-22 | Method of manufacturing solid-state imaging device and method of manufacturing electronic apparatus |
CN2009101373395A CN101582393B (zh) | 2008-05-12 | 2009-04-24 | 固体摄像器件制造方法和电子装置制造方法 |
KR1020090037075A KR20090117982A (ko) | 2008-05-12 | 2009-04-28 | 고체 촬상 장치의 제조 방법 및 전자 기기의 제조 방법 |
US12/463,791 US8076172B2 (en) | 2008-05-12 | 2009-05-11 | Method of manufacturing solid-state imaging device and method of manufacturing electronic apparatus |
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JP2008125189A JP5422914B2 (ja) | 2008-05-12 | 2008-05-12 | 固体撮像装置の製造方法 |
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JP2009277732A true JP2009277732A (ja) | 2009-11-26 |
JP2009277732A5 JP2009277732A5 (ja) | 2011-06-30 |
JP5422914B2 JP5422914B2 (ja) | 2014-02-19 |
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JP2008125189A Expired - Fee Related JP5422914B2 (ja) | 2008-05-12 | 2008-05-12 | 固体撮像装置の製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8076172B2 (ja) |
EP (1) | EP2120264B1 (ja) |
JP (1) | JP5422914B2 (ja) |
KR (1) | KR20090117982A (ja) |
CN (1) | CN101582393B (ja) |
TW (1) | TWI409969B (ja) |
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Also Published As
Publication number | Publication date |
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TW201001739A (en) | 2010-01-01 |
EP2120264B1 (en) | 2013-01-30 |
EP2120264A2 (en) | 2009-11-18 |
CN101582393A (zh) | 2009-11-18 |
CN101582393B (zh) | 2012-10-17 |
EP2120264A3 (en) | 2012-02-22 |
KR20090117982A (ko) | 2009-11-17 |
US20090280596A1 (en) | 2009-11-12 |
TWI409969B (zh) | 2013-09-21 |
JP5422914B2 (ja) | 2014-02-19 |
US8076172B2 (en) | 2011-12-13 |
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