CMOS imager having on-chip ROM

Details CMOS imager having on-chip ROM CMOS imager having on-chip ROM

2006-04-04

2006-04-04

Thompson, Craig A. (Department: 2813)

Active solid-state devices (e.g., transistors, solid-state diode

Gate arrays

With particular signal path connections

C438S132000, C365S096000

Reexamination Certificate

active

07023031

ABSTRACT:
A CMOS image sensor formed on a chip has a ROM disposed on the chip for recording pixel defect locations, chip-by-chip variations such as bias, and other manufacturing production data. Testing results and repair solutions are written to the ROM after production testing. A simple circuit for writing information to the ROM also is provided on the CMOS chip. During operational use of the image sensor, data is read from the on-chip ROM to assist in compensating for manufacturing process variations.

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