Flash memory with improved erasability and its circuitry

Details Flash memory with improved erasability and its circuitry Flash memory with improved erasability and its circuitry

1995-05-08

1997-03-04

Clawson, Joseph E.

Static information storage and retrieval

Floating gate

Particular biasing

36518511, 36518529, 36518518, 36518526, 36518527, 36518911, 36523006, G11C 1604

Patent

active

056086709

ABSTRACT:
The present invention relates to improvements in erasing a flash memory. An object of the present invention is to shorten the erasing time. During pre-erase writing, at least either word lines or bit lines are selected in units of multiple lines at a time, and data are written in multiple selective transistors simultaneously.

REFERENCES:
patent: 4959812 (1990-09-01), Momodomi et al.
patent: 4967394 (1990-10-01), Minagawa et al.
patent: 5022002 (1991-06-01), Iwahashi
patent: 5077691 (1991-12-01), Haddad et al.
patent: 5097444 (1992-03-01), Fong
patent: 5357463 (1994-10-01), Kinney

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