Static information storage and retrieval – Floating gate – Particular biasing
Patent
1987-02-20
1988-07-19
Fears, Terrell W.
Static information storage and retrieval
Floating gate
Particular biasing
365189, 365218, 357 45, G11C 1300, G11C 1140
Patent
active
047589868
ABSTRACT:
A single transistor EEPROM cell comprises a source, a channel, a drain, a floating gate and a control gate. The control gate and the floating gate are co-extensive over the channel. Programming is achieved by charge injection from the channel and erasing is achieved by tunneling to the source. An array organization is disclosed which features a source/erase control line shared between two adjacent rows of the array, providing efficient byte-at-a-time erasing. An erasure scheme is disclosed which involves repetitive erase pulse-read-erase pulse cycles together with means for assuring complete erasure while preventing over-erasure from driving any cell in the array into depletion mode.
REFERENCES:
patent: 4531203 (1985-07-01), Masyoka et al.
Fears Terrell W.
Fisher John A.
Meyer Jonathan P.
Motorola Inc.
Myers Jeffrey V.
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