JP5460703B2 - 背面照射型イメージセンサ及びその製造方法 - Google Patents
背面照射型イメージセンサ及びその製造方法 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14683—Processes or apparatus peculiar to the manufacture or treatment of these devices or parts thereof
- H01L27/1469—Assemblies, i.e. hybrid integration
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/481—Internal lead connections, e.g. via connections, feedthrough structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14632—Wafer-level processed structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14636—Interconnect structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1464—Back illuminated imager structures
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- H01—ELECTRIC ELEMENTS
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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- Solid State Image Pick-Up Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Description
Claims (14)
- イメージセンサにおいて、
第1の面と第2の面を有する第1の基板であって、前記第1の基板の前記第2の面からの光を受けるように構成された受光素子を含む、第1の基板と、
前記第1の基板の前記第1の面に接合された第2の基板であって、前記受光素子に関連する信号を処理するように構成された周辺回路を含む、第2の基板と、
前記第1の基板と前記第2の基板との間に位置する層間絶縁層と、
前記層間絶縁層及び前記第1の基板を通って形成されたビアホールと、
前記ビアホールの内側壁上に形成されたスペーサと、
前記ビアホールを充填するように構成され、前記イメージセンサの製造中に使用されるように適合されて、前記第1の基板の前記第2の面の背面研磨を制御する導電性アライメントキーと、
前記ビアホールの内面に沿って前記スペーサと前記導電性アライメントキーとの間に位置する障壁層と、
相互接続層の少なくとも1つの層が前記導電性アライメントキーに結合されて前記層間絶縁層と前記第2の基板との間に形成された相互接続層と、
前記第1の基板の前記第2の面上に形成され、前記導電性アライメントキーに結合されたパッドと、を含む、イメージセンサ。 - いずれも前記第1の基板の前記第2の面上に形成された色フィルタ及びマイクロレンズをさらに含み、前記色フィルタ及び前記マイクロレンズは光を前記受光素子に向けて配向するように構成されている、請求項1に記載のイメージセンサ。
- 前記障壁層と前記スペーサとの間に形成された接着剤層をさらに含む、請求項1に記載のイメージセンサ。
- 前記障壁層が、Ti、TiN、Ta、TaN、AlSiTiN、NiTi、TiBN、ZrBN、TiAlN、TiB2、Ti/TiN、及びTa/TaNからなる群より選択される層を含む、請求項1に記載のイメージセンサ。
- 前記第1の基板と前記色フィルタとの間に位置する反光散乱層をさらに含む、請求項2に記載のイメージセンサ。
- 前記層間絶縁層上に形成される不活性化層をさらに含む、請求項1に記載のイメージセンサ。
- 前記第1の基板は埋め込み酸化物層を含み、前記導電性アライメントキーが、前記第1の基板の前記埋め込み酸化物層を通って延在する、請求項1に記載のイメージセンサ。
- イメージセンサの製造方法において、
第1の基板の第1の面に受光素子を形成するステップと、
前記第1の基板の前記第1の面及び前記受光素子の上に層間絶縁層を形成するステップと、
前記層間絶縁層及び前記第1の基板を通るビアホールを形成するために、前記層間絶縁層及び前記第1の基板をエッチングするステップと、
前記ビアホールの内側壁上にスペーサを形成するステップと、
前記スペーサ形成ステップの後に前記ビアホールの内面に沿って障壁層を形成するステップと、
前記障壁層上にアライメントキーを形成するために、前記ビアホールに導電性材料を充填するステップと、
前記層間絶縁層及び前記アライメントキー上に相互接続層を形成するステップと、
前記相互接続層を通じて前記第1の基板の前記第1の面に第2の基板を接合するステップと、
背面研磨処理において、前記第1の基板の前記第1の面とは反対側の前記第1の基板の第2の面上に前記導電性アライメントキーを露出させるステップと、
前記導電性アライメントキーに結合された前記第1の基板の前記第2の面上にパッドを形成するステップと、
を含む、方法。 - 前記第1の基板の前記第2の面上に色フィルタ及びマイクロレンズの両方を形成するステップをさらに含み、前記色フィルタ及びマイクロレンズは光を受光素子に向けて配向するように構成されている、請求項8に記載の方法。
- 前記ビアホールの前記内面に沿って接着剤層を形成するステップをさらに含む、請求項8に記載の方法。
- 前記第1の基板の前記第2の面上に反光散乱層を形成するステップをさらに含む、請求項8に記載の方法。
- 前記第1の基板が埋め込み酸化物層を含み、
前記導電性のアライメントキーを露出させるステップが、
前記第1の基板の前記第2の面を背面研磨するステップと、
前記導電性のアライメントキーを露出させるために前記第1の基板の前記埋め込み酸化物層をエッチングするステップと、
を含む、請求項8に記載の方法。 - 前記第1の基板が埋め込み酸化物層を含み、
前記第1の基板の前記埋め込み酸化物層の領域を除去するステップをさらに含み、前記領域は前記受光素子に対応する、請求項8に記載の方法。 - 前記第2の基板を前記第1の基板の前記第1の面に接合するステップに先立って、前記相互接続層の上に不活性化層を形成するステップをさらに含む、請求項8に記載の方法。
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KR1020080054876A KR20090128899A (ko) | 2008-06-11 | 2008-06-11 | 후면 조사 이미지 센서 및 그 제조방법 |
KR10-2008-0054876 | 2008-06-11 | ||
PCT/KR2009/003113 WO2009151274A2 (ko) | 2008-06-11 | 2009-06-10 | 후면 조사 이미지 센서 및 그 제조방법 |
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US (2) | US8564135B2 (ja) |
EP (1) | EP2302680A4 (ja) |
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KR (1) | KR20090128899A (ja) |
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JP2011216865A (ja) * | 2010-03-17 | 2011-10-27 | Canon Inc | 固体撮像装置 |
TWI463646B (zh) * | 2010-07-16 | 2014-12-01 | United Microelectronics Corp | 背照式影像感測器 |
US8779452B2 (en) | 2010-09-02 | 2014-07-15 | Tzu-Hsiang HUNG | Chip package |
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US8564135B2 (en) | 2013-10-22 |
JP2011524633A (ja) | 2011-09-01 |
US20110186951A1 (en) | 2011-08-04 |
JP5731024B2 (ja) | 2015-06-10 |
WO2009151274A2 (ko) | 2009-12-17 |
JP2014116615A (ja) | 2014-06-26 |
EP2302680A2 (en) | 2011-03-30 |
CN102119442A (zh) | 2011-07-06 |
EP2302680A4 (en) | 2012-04-18 |
US8969194B2 (en) | 2015-03-03 |
US20140038337A1 (en) | 2014-02-06 |
CN102119442B (zh) | 2013-04-24 |
KR20090128899A (ko) | 2009-12-16 |
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