发明名称 |
HIGH EFFICIENCY CMOS IMAGE SENSOR PIXEL EMPLOYING DYNAMIC VOLTAGE SUPPLY |
摘要 |
A global shutter compatible pixel circuit comprising a reset gate (RG) transistor is provided in which a dynamic voltage is applied to the drain of the reset gate transistor in order to reduce a floating diffusion (FD) leakage therethrough during signal hold time. The drain voltage of the reset gate transistor is held at a lower voltage than a circuit supply voltage to minimize the off-state leakage through the RG transistor, thus reducing the change in the voltage at the floating diffusion during the signal hold time. In addition, a design structure for such a circuit providing a dynamic voltage to the drain of a reset gate of a pixel circuit is also provided.
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申请公布号 |
US2010097511(A1) |
申请公布日期 |
2010.04.22 |
申请号 |
US20090641589 |
申请日期 |
2009.12.18 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ADKISSON JAMES W.;ELLIS-MONAGHAN JOHN J.;JAFFE MARK D.;MUSANTE CHARLES F.;RASSEL RICHARD J. |
分类号 |
G06F17/50;H04N5/359;H04N5/374 |
主分类号 |
G06F17/50 |
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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