发明名称 |
Method of forming a pixel sensor cell for collecting electrons and holes |
摘要 |
The present invention is a pixel sensor cell and method of making the same. The pixel sensor cell approximately doubles the available signal for a given quanta of light. The device of the present invention utilizes the holes produced by impinging photons in a pixel sensor cell circuit. A pixel sensor cell having reduced complexity includes an n-type collection well region formed beneath a surface of a substrate for collecting electrons generated by electromagnetic radiation impinging on the pixel sensor cell and a p-type collection well region formed beneath the surface of the substrate for collecting holes generated by the impinging photons. A circuit structure having a first input is coupled to the n-type collection well region and a second input is coupled to the p-type collection well region, wherein an output signal of the pixel sensor cell is the magnitude of the difference of a signal of the first input and a signal of the second input.
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申请公布号 |
US7563636(B2) |
申请公布日期 |
2009.07.21 |
申请号 |
US20080172304 |
申请日期 |
2008.07.14 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ADKISSON JAMES W.;BRYANT ANDRES;ELLIS-MONAGHAN JOHN J.;JAFFE MARK D.;JOHNSON JEFFREY B.;LOISEAU ALAIN |
分类号 |
H01L21/00 |
主分类号 |
H01L21/00 |
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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