JP6924703B2 - イメージセンサ画素のゲートレスリセット - Google Patents
イメージセンサ画素のゲートレスリセット Download PDFInfo
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- JP6924703B2 JP6924703B2 JP2017564782A JP2017564782A JP6924703B2 JP 6924703 B2 JP6924703 B2 JP 6924703B2 JP 2017564782 A JP2017564782 A JP 2017564782A JP 2017564782 A JP2017564782 A JP 2017564782A JP 6924703 B2 JP6924703 B2 JP 6924703B2
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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
- H01L27/14609—Pixel-elements with integrated switching, control, storage or amplification elements
- H01L27/14612—Pixel-elements with integrated switching, control, storage or amplification elements involving a transistor
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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
- H01L27/14641—Electronic components shared by two or more pixel-elements, e.g. one amplifier shared by two pixel elements
-
- 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
- H01L27/14643—Photodiode arrays; MOS imagers
-
- 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
- H01L27/14643—Photodiode arrays; MOS imagers
- H01L27/14645—Colour imagers
-
- 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
- H01L27/14689—MOS based technologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
- H04N25/75—Circuitry for providing, modifying or processing image signals from the pixel array
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
- H04N25/77—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
- H04N25/77—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
- H04N25/778—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising amplifiers shared between a plurality of pixels, i.e. at least one part of the amplifier must be on the sensor array itself
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
- H04N25/78—Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Description
本出願は、2015年3月5日に出願された米国仮特許出願第62/128,983号の利益を主張するものであり、この文献は、引用による組み入れが許可されている、又は禁止されていない各PCT加盟国及び加盟地域のために、その全体が引用により本明細書に組み入れられる。
16 n型領域
21 導体
22 p+ピニング層
24 n型電荷貯蔵/蓄積領域
26 移送ゲート電極/導体
28 ゲート誘電体
32 列バス
Claims (13)
- 複数の画素を備えたイメージセンサであって、少なくとも1つの画素は、
半導体基板内に形成された浮遊拡散と、
光電荷を生成して蓄積するように構成されたフォトダイオードと、
前記フォトダイオードに蓄積された光電荷の前記浮遊拡散への移動を選択的に引き起こすように構成された移送ゲートと、
前記半導体基板内に形成され、介在する半導体領域によって前記浮遊拡散から離間したリセットドレインと、
を含み、前記介在する半導体領域は、前記リセットドレイン及び前記浮遊拡散のドーパント型とは反対のドーパント型を有し、
ゲート電極スタックは、前記浮遊拡散と前記リセットドレインとの間の前記介在する半導体領域の上方に形成されず、
前記リセットドレイン及び前記介在する半導体領域は、前記リセットドレインに選択的に付与された電圧パルスに応答して前記浮遊拡散がパンチスルーなしに静電ポテンシャルに対して選択的にリセットされ、前記浮遊拡散と前記リセットドレインの間の静電ポテンシャル障壁が選択的に設定されるように構成される、
ことを特徴とするイメージセンサ。 - (i)前記リセットドレインに第1の電圧が付与された時に、前記介在する半導体領域が、前記浮遊拡散と前記リセットドレインとの間の電荷の流れを防ぐ電位障壁をもたらし、(ii)前記リセットドレインに第2の電圧が付与された時に、浮遊拡散領域と前記リセットドレインとの間の前記電位障壁が低下することによって、前記浮遊拡散に蓄積された電荷が前記リセットドレインに移動するようになる、
請求項1に記載のイメージセンサ。 - 前記浮遊拡散が、複数の画素間で共有されることにより、前記浮遊拡散を共有するそれぞれの前記複数の画素に蓄積されたそれぞれの光電荷が前記浮遊拡散へ選択的に移動できるようになる、
請求項1又は2のいずれかに記載のイメージセンサ。 - それぞれの前記複数の画素が、それぞれの浮遊拡散を共有するように構成されることにより、各浮遊拡散が、2又は3以上の隣接する画素間で共有されるようになる、
請求項1から3のいずれかに記載のイメージセンサ。 - 前記画素は、前記浮遊拡散の前記静電ポテンシャルが、前記フォトダイオードから前記浮遊拡散に移動した前記フォトダイオードのフルウェルキャパシティの量の光電荷に対応する状態からリセットされた時点で500mV未満だけ変化するように構成される、
請求項1から4のいずれかに記載のイメージセンサ。 - 前記センサは、シングルビット量子イメージセンサ又はマルチビット量子イメージセンサである、
請求項1から5のいずれかに記載のイメージセンサ。 - 前記センサは、CMOSアクティブ画素イメージセンサである、
請求項1から6のいずれかに記載のイメージセンサ。 - 前記センサは、光子計数イメージセンサである、
請求項1から7のいずれかに記載のイメージセンサ。 - 前記センサは、ポンプゲート型光検出器デバイスベースのイメージセンサである、
請求項1から8のいずれかに記載のイメージセンサ。 - 前記浮遊拡散は、接合型電界効果トランジスタのゲートとして機能し、又は該ゲートに接続される、
請求項1から9のいずれかに記載のイメージセンサ。 - 前記浮遊拡散は、MOS型電界効果トランジスタのゲートに接続される、
請求項1から10のいずれかに記載のイメージセンサ。 - 前記フォトダイオードは、埋め込みフォトダイオードである、
請求項1に記載のイメージセンサ。 - 複数の画素を備えたイメージセンサを提供する方法であって、
半導体基板内に画素の浮遊拡散を形成するステップと、
前記半導体基板内に前記画素のフォトダイオードを形成するステップであって、前記フォトダイオードが光電荷を生成して蓄積するように構成される、フォトダイオードを形成するステップと、
前記半導体基板内に前記画素の移送ゲートを形成するステップであって、前記移送ゲートは、前記フォトダイオードに蓄積された光電荷の前記浮遊拡散への移動を選択的に引き起こすように構成される、移送ゲートを形成するステップと、
前記半導体基板内に前記画素のリセットドレインを形成するステップと、
を含み、
前記リセットドレインは、該リセットドレイン及び前記浮遊拡散のドーパント型とは反対のドーパント型を有する介在する半導体領域によって前記浮遊拡散から離間し、
ゲート電極スタックは、前記浮遊拡散と前記リセットドレインとの間の前記介在する半導体領域の上方に形成されず、
前記リセットドレイン及び前記介在する半導体領域は、該リセットドレインに選択的に付与された電圧パルスに応答して前記浮遊拡散がパンチスルーなしに静電ポテンシャルに対して選択的にリセットされ、前記浮遊拡散と前記リセットドレインの間の静電ポテンシャル障壁が選択的に設定されるように構成される、
ことを特徴とする方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562128983P | 2015-03-05 | 2015-03-05 | |
US62/128,983 | 2015-03-05 | ||
PCT/US2016/021280 WO2016141388A1 (en) | 2015-03-05 | 2016-03-07 | Gateless reset for image sensor pixels |
Publications (2)
Publication Number | Publication Date |
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JP2018510516A JP2018510516A (ja) | 2018-04-12 |
JP6924703B2 true JP6924703B2 (ja) | 2021-08-25 |
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JP2017564782A Active JP6924703B2 (ja) | 2015-03-05 | 2016-03-07 | イメージセンサ画素のゲートレスリセット |
Country Status (6)
Country | Link |
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US (2) | US10283539B2 (ja) |
EP (1) | EP3266045B1 (ja) |
JP (1) | JP6924703B2 (ja) |
CN (1) | CN108140652B (ja) |
ES (1) | ES2852777T3 (ja) |
WO (1) | WO2016141388A1 (ja) |
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US11496703B2 (en) | 2019-07-25 | 2022-11-08 | Trustees Of Dartmouth College | High conversion gain and high fill-factor image sensors with pump-gate and vertical charge storage well for global-shutter and high-speed applications |
CN112397530A (zh) * | 2019-08-12 | 2021-02-23 | 天津大学青岛海洋技术研究院 | 一种提高电荷电压转换增益的四管有源像素结构 |
US11437420B2 (en) * | 2020-01-03 | 2022-09-06 | Taiwan Semiconductor Manufacturing Company, Ltd. | Image sensor with overlap of backside trench isolation structure and vertical transfer gate |
CN112565638B (zh) * | 2020-12-03 | 2022-09-30 | 天津大学合肥创新发展研究院 | 一种降低量子图像传感器子像素读出噪声的电路及方法 |
US20230215885A1 (en) * | 2021-12-30 | 2023-07-06 | Shenzhen GOODIX Technology Co., Ltd. | Adjustable well capacity pixel for semiconductor imaging sensors |
CN115799289A (zh) * | 2023-01-31 | 2023-03-14 | 天津海芯微电子技术有限公司 | 一种4t有源像素结构及其工作方法 |
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US10283539B2 (en) | 2019-05-07 |
EP3266045A4 (en) | 2018-11-07 |
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US10978504B2 (en) | 2021-04-13 |
WO2016141388A1 (en) | 2016-09-09 |
EP3266045A1 (en) | 2018-01-10 |
US20180047769A1 (en) | 2018-02-15 |
CN108140652B (zh) | 2022-08-30 |
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CN108140652A (zh) | 2018-06-08 |
ES2852777T3 (es) | 2021-09-14 |
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