Optoelectronic device arranged as a multi-spectral light sensor having a photodiode array with aligned light blocking layers and n-well regions
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United States of America Patent
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Jan 2, 2024
Grant Date -
Dec 24, 2020
app pub date -
Sep 4, 2020
filing date -
Mar 30, 2018
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Abstract
An optoelectronic device is disclosed, comprising: a photodiode array including a plurality of first photodiodes, each first photodiode including a respective n+ region and a respective n-well region; a guide array disposed over the photodiode array, the guide array including a plurality of guide members separated from one another by a layer of light-blocking material, the guide members being aligned with the n+ regions of the first photodiodes, such that each guide member is disposed over a different respective n+ region, and the layer of light-blocking material being aligned with the n-well regions of the first photodiodes; and a filter array disposed over the guide array, the filter array including a plurality of bandpass filters, each bandpass filter being aligned with a different one of the plurality of guide members, each bandpass filter having a different transmission band.
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