JP6353354B2 - 撮像装置およびその製造方法 - Google Patents
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Description
ここでは、電極パッドと配線とが、壁型導電性貫通部によって電気的に接続された撮像装置について説明する。
上述した撮像装置ISでは、電極パッドPADが配置される領域に形成される壁型導電性貫通部TB1として、5つの壁型導電性貫通部TB1が形成されている場合を例に挙げて説明した。壁型導電性貫通部TB1の数として、5つに限られるものではなく、図33に示すように、さらに多くの壁型導電性貫通部TB1を形成してもよい。
図1に示すように、撮像装置ISでは、耐湿性を確保するために、チップ形成領域TFRおよび電極パッドPADが配置される領域を取り囲むように、シールリングSLRが形成されている。そのシールリングSLRの構造として、図34に示すように、電極パッドPADが配置される領域の壁型導電性貫通部TB1等を形成する工程と同時に形成した構造であってもよい。
ここでは、電極パッドと配線とが、壁型導電性貫通部を組み合わせて枠状にした枠型導電性貫通部によって電気的に接続された撮像装置について説明する。
まず、電極パッドPADは、反射防止膜ARCに形成された開口部SOH1(図47参照)を埋め込むように形成されたアルミニウム膜をパターニングすることによって形成される。一方、実施の形態1に係る撮像装置ISでは、電極パッドPADは、反射防止膜ARCとシリコン酸化膜SOF3に形成された開口部SOH(図16参照)を埋め込むように形成されたアルミニウム膜をパターニングすることによって形成される。
実施の形態1では、電極パッドPADが配置される領域に、壁型導電性貫通部TB1が形成された構造について説明した。また、実施の形態2では、電極パッドPADが配置される領域に、壁型導電性貫通部を枠状に配置した枠型導電性貫通部TB2が形成された構造について説明した。
Claims (9)
- 対向する第1主表面および第2主表面を有する半導体層の前記第1主表面側に形成された受光センサ部と、
前記半導体層の前記第1主表面側に、層間絶縁層を介在させて形成された支持基板と、
前記層間絶縁層の層間に形成された複数の配線層と、
前記半導体層の前記第2主表面側に形成された、光を入射させる領域と、
前記半導体層の前記第2主表面側に形成された電極パッドと、
前記半導体層を貫通して、前記電極パッドに接触する態様で形成され、前記電極パッドと複数の前記配線層のうちの一の配線層とを電気的に接続する、壁状の壁型導電性貫通部を含む導電性貫通部と、
前記受光センサ部および前記電極パッドが配置されている領域を取り囲むように形成されたシールリングと
を備え、
前記シールリングは、前記導電性貫通部を形成する層と同じ層から形成され、
前記導電性貫通部は、平面視的に前記シールリングが延在する方向に沿って前記壁型導電性貫通部が延在する部分を含む、撮像装置。 - 前記導電性貫通部は、前記半導体層の前記第2主表面から突出するように形成された、請求項1記載の撮像装置。
- 前記導電性貫通部の前記壁型導電性貫通部は、それぞれ一方向に延在し、互いに前記一方向と交差する第2方向に間隔を隔てられる態様で複数配置された、請求項1または2に記載の撮像装置。
- 前記導電性貫通部は、前記壁型導電性貫通部を枠状に配置した枠型導電性貫通部を含む、請求項1または2に記載の撮像装置。
- 前記光を入射させる領域には、遮光膜、カラーフィルタおよびマイクロレンズが形成された、請求項1記載の撮像装置。
- 第1支持基板に支持された半導体層の第1主表面に、受光センサ部を形成する工程と、
前記半導体層の前記第1主表面側から前記第1主表面と対向する第2主表面に至る、前記半導体層を貫通する溝状の溝型貫通孔を含む貫通孔を形成する工程と、
前記半導体層とは電気的に絶縁される態様で導電性膜を前記貫通孔に形成し、前記溝型貫通孔に対応する壁状の壁型導電性貫通部を含む導電性貫通部を形成する工程と、
前記半導体層の前記第1主表面側に、前記導電性貫通部に電気的に接続される配線層を含む複数の配線層および層間絶縁膜を形成する工程と、
前記層間絶縁膜に第2支持基板を張り付ける工程と、
前記第1支持基板を取り除く工程と、
前記半導体層の前記第2主表面側に、前記導電性貫通部に接触する態様で電気的に接続される電極パッドを形成する工程と、
前記受光センサ部および前記電極パッドが配置される領域を取り囲むように、シールリングを形成する工程と
を備え、
前記シールリングを形成する工程と前記導電性貫通部を形成する工程とは、併行して行われ、
前記導電性貫通部は、平面視的に前記シールリングが延在する方向に沿って前記壁型導電性貫通部が延在する部分を含むように形成される、撮像装置の製造方法。 - 前記導電性貫通部を形成する工程は、前記半導体層の前記第2主表面から突出させる態様で前記導電性貫通部を形成する工程を含み、
前記半導体層の前記第2主表面側に、前記導電性貫通部をアライメントマークとして、
少なくとも遮光膜、カラーフィルタおよびマイクロレンズをそれぞれ形成する工程を含む、請求項6記載の撮像装置の製造方法。 - 前記遮光膜を形成する工程と前記電極パッドを形成する工程とは、同時に行われる、請求項7記載の撮像装置の製造方法。
- 前記半導体層の前記第1主表面側に、前記受光センサ部と複数の前記配線層のうちの他の配線層とを電気的に接続する導電性プラグを形成する工程を含み、
前記導電性プラグを形成する工程と前記導電性貫通部を形成する工程とは、同時に行われる、請求項6記載の撮像装置の製造方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014251855A JP6353354B2 (ja) | 2014-12-12 | 2014-12-12 | 撮像装置およびその製造方法 |
US14/952,543 US9768219B2 (en) | 2014-12-12 | 2015-11-25 | Imaging device and method of manufacturing the same |
TW104140020A TW201633520A (zh) | 2014-12-12 | 2015-12-01 | 攝影裝置及其製造方法 |
KR1020150172274A KR20160072028A (ko) | 2014-12-12 | 2015-12-04 | 촬상 장치 및 그 제조 방법 |
CN201510920936.0A CN105702693A (zh) | 2014-12-12 | 2015-12-11 | 摄像装置及摄像装置的制造方法 |
US15/678,837 US20170345863A1 (en) | 2014-12-12 | 2017-08-16 | Imaging device and method of manufacturing the same |
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JP6200835B2 (ja) * | 2014-02-28 | 2017-09-20 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
TWI655753B (zh) * | 2015-03-11 | 2019-04-01 | 日商新力股份有限公司 | Solid-state imaging device and manufacturing method, semiconductor wafer, and electronic device |
FR3037720A1 (fr) * | 2015-06-19 | 2016-12-23 | St Microelectronics Crolles 2 Sas | Composant electronique et son procede de fabrication |
KR102646901B1 (ko) * | 2016-12-23 | 2024-03-12 | 삼성전자주식회사 | 이미지 센서 및 그 제조 방법 |
CN107634074B (zh) * | 2017-08-16 | 2020-02-21 | 上海微阱电子科技有限公司 | 防止划片损伤的cmos图像传感器结构及其制作方法 |
EP3719841B1 (en) * | 2019-04-01 | 2022-02-16 | Detection Technology Oy | Radiation sensor element and method |
WO2021090545A1 (ja) * | 2019-11-08 | 2021-05-14 | ソニーセミコンダクタソリューションズ株式会社 | 撮像素子および撮像装置 |
JP2023144526A (ja) * | 2022-03-28 | 2023-10-11 | ソニーセミコンダクタソリューションズ株式会社 | 光検出装置及び電子機器 |
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US7453158B2 (en) * | 2003-07-31 | 2008-11-18 | Nvidia Corporation | Pad over active circuit system and method with meshed support structure |
CN1617312A (zh) * | 2003-11-10 | 2005-05-18 | 松下电器产业株式会社 | 半导体器件及其制造方法 |
JP3962402B2 (ja) * | 2003-11-10 | 2007-08-22 | 松下電器産業株式会社 | 半導体装置 |
JP4046069B2 (ja) | 2003-11-17 | 2008-02-13 | ソニー株式会社 | 固体撮像素子及び固体撮像素子の製造方法 |
CN101960608A (zh) * | 2008-03-11 | 2011-01-26 | 松下电器产业株式会社 | 半导体设备以及半导体设备的制造方法 |
KR20090128899A (ko) * | 2008-06-11 | 2009-12-16 | 크로스텍 캐피탈, 엘엘씨 | 후면 조사 이미지 센서 및 그 제조방법 |
JP2011014674A (ja) | 2009-07-01 | 2011-01-20 | Panasonic Corp | 固体撮像装置の製造方法 |
JP2011086709A (ja) * | 2009-10-14 | 2011-04-28 | Toshiba Corp | 固体撮像装置及びその製造方法 |
JP2011243656A (ja) * | 2010-05-14 | 2011-12-01 | Toshiba Corp | 固体撮像装置およびその製造方法 |
US8435824B2 (en) * | 2011-07-07 | 2013-05-07 | Taiwan Semiconductor Manufacturing Company, Ltd. | Backside illumination sensor having a bonding pad structure and method of making the same |
JP2013041878A (ja) * | 2011-08-11 | 2013-02-28 | Sony Corp | 撮像装置およびカメラモジュール |
JP5696081B2 (ja) * | 2012-03-23 | 2015-04-08 | 株式会社東芝 | 固体撮像装置 |
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CN105702693A (zh) | 2016-06-22 |
KR20160072028A (ko) | 2016-06-22 |
US9768219B2 (en) | 2017-09-19 |
US20170345863A1 (en) | 2017-11-30 |
JP2016115757A (ja) | 2016-06-23 |
US20160172405A1 (en) | 2016-06-16 |
TW201633520A (zh) | 2016-09-16 |
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