CMOS eprom sense amplifier

Details CMOS eprom sense amplifier CMOS eprom sense amplifier

1984-02-21

1988-02-16

Hecker, Stuart N.

Static information storage and retrieval

Read/write circuit

Having particular data buffer or latch

365185, 365210, G11C 700

Patent

active

047259841

ABSTRACT:
Individual CMOS floating-gate memory cells capable of storing data are arranged in an array structure and selected with horizontal and vertical access lines. Current flow through the array cells is measured, amplified, and then compared with an unprogrammed cell using the sense amplifier of the present invention. The sense amplifier tolerates increased variation in the characteristics of programmed or unprogrammed cells and therefore increases the manufacturing yields of the arrays. It additionally achieves fast accessing and sensing of the stored data.

REFERENCES:
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patent: 4179626 (1979-12-01), Oehler
patent: 4223394 (1980-09-01), Pathak et al.
patent: 4301518 (1981-11-01), Klaas
patent: 4342102 (1982-07-01), Puar
patent: 4434479 (1984-02-01), Chen et al.
patent: 4459497 (1984-07-01), Kuo et al.
patent: 4464591 (1984-08-01), Rapp
patent: 4494219 (1985-01-01), Tanaka et al.

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