JP2015179731A - 固体撮像装置 - Google Patents
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Abstract
Description
なお、以下の説明で用いられる図面においては、各構成要素を見やすくするため、構成要素によって寸法の縮尺を異ならせて示すことがある。また、以下の説明で例示される材料、寸法等は一例であって、実施形態はそれらに必ずしも限定されるものではなく、本発明の要旨を変更しない範囲で適宜変更して実施することが可能である。
固体撮像装置1は、図1に示すように、CMOSイメージセンサーとして、例えばシリコン基板などを有する半導体基板部2の面内に、複数の画素3がマトリックス状に配列された画素部(撮像領域)4を備えている。
次に、第1の実施形態として図2に示す固体撮像装置1Aについて説明する。
図2は、第1の実施形態の固体撮像装置1Aが備える1つの画素3に対応した断面構造を示す断面図である。なお、第1の実施形態の固体撮像装置1Aでは、上記図1に示す固体撮像装置1と同等の部位については、説明を省略すると共に、図面において同じ符号を付すものとする。
0.21<αB・dB<2.3 …(1)
1.4<αR・dR<2.6 …(2)
100<n・d<125 …(3)
次に、第2の実施形態として図6に示す固体撮像装置1Bについて説明する。
図6は、第2の実施形態の固体撮像装置1Bが備える1つの画素3に対応した断面構造を示す断面図である。なお、第2の実施形態の固体撮像装置1Bでは、上記図2に示す第1の実施形態の固体撮像装置1Aと同等の部位については、説明を省略すると共に、図面において同じ符号を付すものとする。
次に、第3の実施形態として図7に示す固体撮像装置1Cについて説明する。
図7は、第3の実施形態の固体撮像装置1Cが備える1つの画素3に対応した断面構造を示す断面図である。なお、第3の実施形態の固体撮像装置1Cでは、上記図2に示す第1の実施形態の固体撮像装置1Aと同等の部位については、説明を省略すると共に、図面において同じ符号を付すものとする。
Claims (11)
- 第1の無機光電変換部と、
前記第1の無機光電変換部と対向し、光が入射する受光面と、読み出し回路を含む回路が形成された回路形成面とを有し、内部に第2の無機光電変換部を有する半導体基板部と、
前記第1の無機光電変換部と前記第2の無機光電変換部との間に配置された微細構造体とを備える第1の部分を含む固体撮像装置。 - 前記受光面側から入射した光のうち、前記第1の無機光電変換部で吸収される第1の波長成分の光が前記微細構造体で反射され、前記第2の無機光電変換部で吸収される第2の波長成分の光が前記微細構造体を透過する請求項1に記載の固体撮像装置。
- 前記微細構造体は、アレイ状に並ぶ複数のドットにより構成され、
前記各ドットは、面内で対称な平面形状を有する請求項1または2に記載の固体撮像装置。 - 前記第1の波長成分の光が青色光であり、前記第2の波長成分の光が赤色光であり、
前記微細構造体において、各ドットの幅が20〜300nmの範囲にあり、各ドットの厚みが10〜300nmの範囲にあり、隣接する各ドットの間隔が20〜250nmの範囲にある請求項3に記載の固体撮像装置。 - 前記第1の無機光電変換部は、前記青色光を吸収する青色吸収層を含み、
前記第2の無機光電変換部は、前記赤色光を吸収する赤色吸収層を含み、
前記青色吸収層の吸収係数をαB[nm−1]とし、前記青色吸収層の厚みをdB[nm]としたときに、
0.21<αB・dB<2.3
の関係を満足し、
前記赤色吸収層の吸収係数をαR[nm−1]とし、前記赤色吸収層の厚みをdR[nm]としたときに、
1.4<αR・dR<2.6
の関係を満足する請求項4に記載の固体撮像装置。 - 前記青色吸収層がアモルファスシリコンを含む請求項5に記載の固体撮像装置。
- 前記青色吸収層と前記微細構造体との間にシリコン酸化膜を含み、
前記シリコン酸化膜の屈折率をnとし、前記シリコン酸化膜の厚みをd[nm]としたときに、
100<n・d<125
の関係を満足する請求項5又は6に記載の固体撮像装置。 - 前記半導体基板部の前記受光面側の面上に形成された有機光電変換部を備え、
前記有機光電変換部は、第3の波長成分の光を吸収する有機光電変換膜を含む請求項4〜7の何れか一項に記載の固体撮像装置。 - 前記第3の波長成分の光が緑色光であり、
前記有機光電変換部は、前記第1の無機光電変換部及び前記第2の無機光電変換部の形成位置と平面視で重なる位置に設けられている請求項8に記載の固体撮像装置。 - 前記第1の部分の隣に設けられ、前記第2の無機光電変換部を有する第2の部分と、
前記第1の部分における前記第1の無機光電変換部と対向して設けられ、前記第1の波長成分の光及び前記第2の波長成分の光を吸収する第1のカラーフィルターと、
前記第2の部分における前記第2の無機光電変換部と対向して設けられ、第3の波長成分の光を吸収する第2のカラーフィルターとを有する請求項1に記載の固体撮像装置。 - 前記第1の無機光電変換部及び前記第2の無機光電変換部は、それぞれ前記読み出し回路に対して独立に接続されている請求項1〜10の何れか一項に記載の固体撮像装置。
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CN201410698275.7A CN104934453A (zh) | 2014-03-19 | 2014-11-27 | 固体摄像装置 |
US14/555,889 US9331125B2 (en) | 2014-03-19 | 2014-11-28 | Solid-state imaging device using plasmon resonator filter |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2018098341A (ja) * | 2016-12-13 | 2018-06-21 | 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、電子機器 |
WO2019049633A1 (ja) * | 2017-09-05 | 2019-03-14 | ソニーセミコンダクタソリューションズ株式会社 | 撮像素子及び固体撮像装置 |
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US10522582B2 (en) * | 2015-10-05 | 2019-12-31 | Sony Semiconductor Solutions Corporation | Imaging apparatus |
JP2017112169A (ja) * | 2015-12-15 | 2017-06-22 | ソニー株式会社 | イメージセンサ、撮像システム及びイメージセンサの製造方法 |
JP6677594B2 (ja) * | 2016-06-30 | 2020-04-08 | キヤノン株式会社 | 光電変換装置 |
US20190371847A1 (en) * | 2016-09-29 | 2019-12-05 | Nikon Corporation | Image sensor, focus detection apparatus, and electronic camera |
KR20240124435A (ko) | 2017-11-20 | 2024-08-16 | 소니그룹주식회사 | 광전변환 소자 및 고체 촬상 장치 |
CN110650301B (zh) * | 2019-10-14 | 2022-03-01 | Oppo广东移动通信有限公司 | 图像传感器及成像方法、设备 |
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US20150270314A1 (en) | 2015-09-24 |
US9331125B2 (en) | 2016-05-03 |
CN104934453A (zh) | 2015-09-23 |
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