Static information storage and retrieval – Floating gate – Multiple values
Patent
1999-01-27
2000-03-07
Dinh, Son T.
Static information storage and retrieval
Floating gate
Multiple values
36518518, 3651852, G11C 1604
Patent
active
060348887
ABSTRACT:
The reading circuit comprises a current source, which, via a current reflection circuit, supplies a constant predetermined current to a cell to be read, an operational amplifier with a non-inverting input connected to the drain terminal of the cell, and an output connected to the gate terminal of the cell. The source terminal of the cell is connected to ground. Thereby the output voltage of the operational amplifier supplies directly (at the set current) the threshold voltage of the cell, and the drain terminal of the cell is biased to a positive voltage.
REFERENCES:
patent: 5745414 (1998-04-01), Engh et al.
patent: 5808938 (1998-09-01), Tran et al.
patent: 5838612 (1998-11-01), Calligaro et al.
patent: 5946235 (1999-08-01), Kramer et al.
Canegallo Roberto
Chioffi Ernestina
Guaitini Giovanni
Issartel Cedric
Pasotti Marco
Dinh Son T.
Galanthay Theodore E.
STMicroelectronics S.r.l.
Tarleton E. Russell
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