Static information storage and retrieval – Read/write circuit – Including reference or bias voltage generator
Patent
1993-08-23
1995-04-11
Popek, Joseph A.
Static information storage and retrieval
Read/write circuit
Including reference or bias voltage generator
365185, 365218, 365226, 365900, G11C 1300
Patent
active
054065178
ABSTRACT:
A distributed negative gate power supply for generating and selectively supplying a relatively high negative voltage to control gates of memory cells in selected half-sectors via wordlines in an array of flash EEPROM memory cells during flash erasure. The distributed negative gate power supply includes a main charge pumping circuit (20a, 20b), a plurality of distribution sector pumping means (18a-18p). Each of the plurality of distribution sector pumping circuits is responsive to a half-sector select signal for selectively connecting the primary negative voltage to the wordlines of the selected half-sectors.
REFERENCES:
patent: 5077691 (1991-12-01), Haddad et al.
patent: 5168466 (1992-12-01), Kuo et al.
patent: 5282170 (1994-01-01), Van Buskirk et al.
Chang Chung K.
Chen Johnny C.
Cleveland Lee E.
Van Buskirk Michael A.
Advanced Micro Devices , Inc.
Chin Davis
Popek Joseph A.
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