Non-volatile solid state image pickup device and its drive

Details Non-volatile solid state image pickup device and its drive Non-volatile solid state image pickup device and its drive

2007-03-27

2007-03-27

Epps, Georgia (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C257S291000, C257S315000

Reexamination Certificate

active

10660772

ABSTRACT:
A solid state image pickup device has: an n-type semiconductor substrate; a p-type layer formed in the n-type substrate; a first n-type region formed in the p-type layer and constituting a photodiode therewith; a first gate structure including a charge storage region and a control gate, formed on the semiconductor substrate adjacent to the first region; a second n-type region formed adjacent to the first gate structure on opposite side to the first region, constituting a non-volatile memory element with the first region and the first gate structure; and a control circuit for applying write and read voltages to the control gate, for tunneling and writing charges, and for reading stored information. A solid state image pickup device is provided which can execute a novel pixel signal read operation.

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