发明名称 |
Multi spectral sensor |
摘要 |
A light sensor having a light conversion element between first and second electrodes is disclosed. The light conversion element includes a body of semiconductor material having first and second surfaces. The body of semiconductor material is of a first conductivity type and has doping elements in a concentration gradient that creates a first electrostatic field having a magnitude that varies monotonically from the first surface to the second surface. A bias circuit applies a variable potential between the first and second electrodes to create a second electrostatic field having a direction opposite to that of the first electrostatic field and a magnitude determined by the potential. One of the electrodes is transparent to light in a predetermined band of wavelengths. The body of semiconductor material can include an epitaxial body having a monotonically increasing concentration of a doping element as a function of the distance from one the surfaces.
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申请公布号 |
US8071410(B2) |
申请公布日期 |
2011.12.06 |
申请号 |
US20090637633 |
申请日期 |
2009.12.14 |
申请人 |
WEN DAVID D.;LIU XINQIAO;VU AHN N.;ONISHI STEVEN KIYOSHI;BAE SYSTEMS IMAGING SOLUTIONS INC. |
发明人 |
WEN DAVID D.;LIU XINQIAO;VU AHN N.;ONISHI STEVEN KIYOSHI |
分类号 |
H01L21/00;H01L21/331;H01L21/336;H01L21/8234;H01L27/148;H04N5/361;H04N5/372;H04N5/376 |
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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