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

1995-05-15

1997-01-07

Clawson, Jr., Joseph E.

Static information storage and retrieval

Floating gate

Particular biasing

36518523, 36518525, 36518529, 36518533, G11C 1606

Patent

active

055924190

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: 5099143 (1992-03-01), Arakawa
patent: 5136541 (1992-08-01), Arakawa
patent: 5253200 (1993-10-01), Arakawa
patent: 5270979 (1993-12-01), Harari et al.
patent: 5289411 (1994-02-01), Jeng et al.
patent: 5369609 (1994-11-01), Wang et al.

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