Active pixel sensor array with simple floating gate pixels

Details Active pixel sensor array with simple floating gate pixels Active pixel sensor array with simple floating gate pixels

1997-01-22

2000-12-26

Garber, Wendy

Television

Camera, system and detail

Solid-state image sensor

348302, 348250, 348304, H04N 314

Patent

active

061667684

ABSTRACT:
An imaging device formed as a monolithic complementary metal oxide semiconductor integrated circuit in an industry standard complementary metal oxide semiconductor process, the integrated circuit including a focal plane array of pixel cells, each one of the cells including a photogate overlying the substrate for accumulating photo-generated charge in an underlying portion of the substrate and a charge coupled device section formed on the substrate adjacent the photogate having a sensing node and at least one charge coupled device stage for transferring charge from the underlying portion of the substrate to the sensing node. There is also a readout circuit, part of which can be disposed at the bottom of each column of cells and be common to all the cells in the column. A Simple Floating Gate (SFG) pixel structure could also be employed in the imager to provide a non-destructive readout and smaller pixel sizes.

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