发明名称 |
PUMPED PINNED PHOTODIODE PIXEL ARRAY |
摘要 |
The present invention relates to a pumped pixel that includes a first photo-diode accumulating charge in response to impinging photons, a second photo-diode and a floating diffusion positioned on a substrate of the pixel. The pixel also includes a charge barrier positioned on the substrate between the first photo-diode and the second photo-diode, where the charge barrier temporarily blocks charge transfer between the first photo-diode and the second photo-diode. Also included is a pump gate positioned on the substrate adjacent to the charge barrier. The pump gate pumps the accumulated charge from the first photo-diode to the second photo-diode through the charge barrier in response to a pump voltage applied by a controller. Also included is a transfer gate positioned on the substrate between the second photo-diode and the floating diffusion. The transfer gate transfers the pumped charge from the second photo-diode to the floating diffusion in response to a transfer voltage applied by a controller.
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申请公布号 |
US2012241591(A1) |
申请公布日期 |
2012.09.27 |
申请号 |
US201113242865 |
申请日期 |
2011.09.23 |
申请人 |
WAN CHUNG CHUN;LI XIANGLI;APTINA IMAGING CORPORATION |
发明人 |
WAN CHUNG CHUN;LI XIANGLI |
分类号 |
H01L27/148;H01L31/112 |
主分类号 |
H01L27/148 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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