Semiconductor memory

Details Semiconductor memory Semiconductor memory

2006-10-03

2006-10-03

Elms, Richard (Department: 2824)

Static information storage and retrieval

Read/write circuit

Differential sensing

C365S189090, C365S190000

Reexamination Certificate

active

07116598

ABSTRACT:
A semiconductor memory comprises a memory cell, a pair of reference cells for use in generation of a reference electric potential, a first read circuit which compares a read electric potential obtained from the memory cell with the reference electric potential and determines data in the memory cell, a second read circuit which detects a state of the pair of reference cells and outputs a detection signal indicating the state of the pair of reference cells, and a control circuit which controls a write operation for the pair of reference cells based on the detection signal.

REFERENCES:
patent: 6151246 (2000-11-01), So et al.
patent: 6545906 (2003-04-01), Savtchenko et al.
patent: 2006/0092734 (2006-05-01), Tsuchida et al.

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