Sense amplifier for mask read only memory

Details Sense amplifier for mask read only memory Sense amplifier for mask read only memory

2006-07-11

2006-07-11

Auduong, Gene N. (Department: 2827)

Static information storage and retrieval

Read/write circuit

Flip-flop used for sensing

C365S063000, C365S230020

Reexamination Certificate

active

07075843

ABSTRACT:
A sense amplifier for Mask Read Only Memory comprising a multiplexer, a plurality of comparators, a plurality of first selected transistors, and a plurality of second selected transistors. The gates of both first selected transistor and second selected transistor are connected to a word line select. One doping area of the first selected transistor is connected to the multiplexer for generating a plurality of signals, and another doping area is connected to a selected bit line. One doping area of each of the second selected transistor is connected to each of the comparators, and another doping area is connected to an external voltage. A cell voltage status is determined when each of the signals and one of doping areas of the second selected transistors are connected to each of the comparators.

REFERENCES:
patent: 6205064 (2001-03-01), Ooishi
patent: 6333878 (2001-12-01), Ooishi

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