Compact detection array having improved polarization conditions
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United States of America Patent
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Jul 12, 2016
Grant Date -
Nov 13, 2014
app pub date -
Nov 30, 2012
filing date -
Dec 2, 2011
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Abstract
An array of photodetector is organized along a first organizational axis on a semiconductor substrate of a first conductivity type. Each photodetector is at least partially formed in the substrate which forms a first electrode of the photodetector. A peripheral polarization ring is formed around the array of photodetectors. The polarization ring is connected to a polarization voltage generator and to the substrate. A read circuit is connected to a photodetector via the second terminal of the photodetector. A first switch connects the photodetector to a generator of an additional voltage. A second switch connects the photodetector to the associated read circuit. The first and the second switches are in opposite states.
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