Semiconductor device manufacturing: process – Making device or circuit responsive to nonelectrical signal – Responsive to electromagnetic radiation
Reexamination Certificate
2010-02-25
2011-10-04
Sandvik, Benjamin (Department: 2826)
Semiconductor device manufacturing: process
Making device or circuit responsive to nonelectrical signal
Responsive to electromagnetic radiation
C257SE31124
Reexamination Certificate
active
08030122
ABSTRACT:
A method and apparatus for a photoinduced electromotive force sensor. The sensor has an active substrate formed of a semi-insulating photoconductor with sufficient carrier trap density to form an effective charge grating and pairs of electrodes disposed on the active substrate, where the sensor is configured to reduce the photovoltaic effect caused by the incident light in the vicinity of the electrodes. The shape or composition of the electrodes may be selected to reduce the photovoltaic effect or the electrodes may be disposed on the substrate to average out the photovoltaic effect arising from each one of the electrodes.
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Bacher Gerald David
Dunning Gilmore J.
Klein Marvin B.
Pepper David M.
Pouet Bruno
HRL Laboratories LLC
Kuo W. Wendy
Ladas & Parry
Sandvik Benjamin
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