Imaging devices with solid-state radiation detector with improved sensitivity
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United States of America Patent
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Dec 1, 2015
Grant Date -
Oct 10, 2013
app pub date -
Jun 5, 2013
filing date -
Feb 2, 2009
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Abstract
A radiation detector includes a semiconductor substrate having opposing front and rear surfaces, a cathode electrode located on the front surface of the semiconductor substrate configured so as to receive radiation, and a plurality of anode electrodes formed on the rear surface of said semiconductor substrate. A work function of the cathode electrode material contacting the front surface of the semiconductor substrate is lower than a work function of the anode electrode material contacting the rear surface of the semiconductor substrate.
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