Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2005-05-17
2005-05-17
Nelms, David (Department: 2818)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S226000, C250S578100, C257S232000, C257S431000, C257S440000
Reexamination Certificate
active
06894265
ABSTRACT:
A vertical color filter sensor group, formed on a substrate (preferably a semiconductor substrate) by a semiconductor integrated circuit fabrication process, and including at least two vertically stacked, photosensitive sensors. Other aspects of the invention are arrays of such vertical color filter sensor groups, and methods for fabricating such vertical color filter sensor groups and arrays thereof. In some embodiments, the sensor group is a block of solid material having a readout surface. At least two vertically stacked sensors are formed in the block and a trench contact is provided between one of the sensors and the readout surface.
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Martin Russel A.
Merrill Richard B.
Foveon, Inc.
Girard & Equitz LLP
Nelms David
Nguyen Dao H.
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