发明名称 |
Design methods and apparatuses of photodiodes with adaptive structure to achieve smooth and wavelength-selective photo-responses |
摘要 |
The design methods and apparatuses of photodiodes with adaptive structures to achieve smooth and wavelength-selective responses are proposed. By using the adequate sizes of the photo-sensing areas and gains of the back-end amplifiers towards the different photo-responses of multiple photodiodes, the photo-responses from these photodiodes are summed together to yield the uniform distribution of the total photo-responses. Based on the physical characteristics of the process parameters, the equation of the photo-responses for the PN junction is derived to find the optimized values of the process parameters for increasing the photo-response and achieving the peak value of the photo-responses at a specific wavelength. The photodiode with multiple PN junctions and multiple switches is designed to achieve multiple photo-responses in a single photodiode. By using the switches to turn off the unused PN junctions, the selected PN junctions can generate the required photo-responses. Hence, this kind of the photodiode can sense multiple colors without using color filters.
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申请公布号 |
US2004133863(A1) |
申请公布日期 |
2004.07.08 |
申请号 |
US20030672748 |
申请日期 |
2003.09.27 |
申请人 |
CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
DAI LI-KUO;WENG PING-KUO;JIH FAR-WEN;HUANG KAUNG-HSIN;LIU WEI-JEAN;CHEN OSCAL TZYH-CHIANG |
分类号 |
G06F9/45;G06F17/50;H01L31/04;(IPC1-7):G06F9/45 |
主分类号 |
G06F9/45 |
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