Image sensor having an array of operative and dummy bipolar tran

Details Image sensor having an array of operative and dummy bipolar tran Image sensor having an array of operative and dummy bipolar tran

1991-01-04

1992-09-29

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

35821312, H01J 4014

Patent

active

051515873

ABSTRACT:
The image sensor is comprised of an array of operative bipolar transistors. Another array of optically shielded dummy bipolar transistors are formed adjacently to the operative bipolar transistors. Reset switches are connected to base regions of the operative and dummy bipolar transistors so as to reduce variation in dark image output, to ensure linearity of output signal, and to eliminate image storage.

REFERENCES:
patent: 4819071 (1989-04-01), Nakamura

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