Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Patent
1995-05-08
1998-06-23
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
327534, 36518527, 36518529, H03K 508
Patent
active
057709637
ABSTRACT:
A flash memory performs channel erasing or source erasing by applying a negative voltage to a control gate. The device includes a voltage restriction device which restricts the negative voltage to be applied to the control gate so that the negative voltage will be a constant value relative to the voltage of the channel or source. Alternatively, two voltage restricting devices restrict the negative voltage applied to the control gate and the voltage to be applied to the source so that the voltages will be a constant value relative to a common reference voltage.
REFERENCES:
patent: 4438346 (1984-03-01), Chuang et al.
patent: 4920280 (1990-04-01), Cho et al.
patent: 5029282 (1991-07-01), Ito
patent: 5180928 (1993-01-01), Choi
patent: 5200919 (1993-04-01), Kaya
patent: 5235544 (1993-08-01), Caywood
patent: 5251169 (1993-10-01), Josephson
patent: 5341342 (1994-08-01), Brahmbhatt
patent: 5379253 (1995-01-01), Bergemont
patent: 5406524 (1995-04-01), Kawamura et al.
patent: 5416738 (1995-05-01), Shrivastaba
patent: 5438542 (1995-08-01), Atsumi et al.
patent: 5557565 (1996-09-01), Kaya et al.
Akaogi Takao
Hagiwara Ryoji
Itano Kiyoshi
Kasa Yasushi
Kawamura Shouichi
Callahan Timothy P.
Fujitsu Limited
Kim Jung Ho
LandOfFree
Flash memory with improved erasability and its circuitry does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flash memory with improved erasability and its circuitry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flash memory with improved erasability and its circuitry will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1397218