Non-volatile semiconductor memory device

Details Non-volatile semiconductor memory device Non-volatile semiconductor memory device

1993-01-28

1994-10-04

Yoo, Do Hyun

Static information storage and retrieval

Floating gate

Particular biasing

36518909, 365205, 365208, 3652335, G11C 700, G11C 1140

Patent

active

053532490

ABSTRACT:
A non-volatile semiconductor device includes a bus line; a plurality of bit lines coupled to the bus line; a cell transistor, connected between each of the bit lines and a word line, for storing electrical information; an output circuit, coupled to the bus line, for outputting a signal corresponding to the electrical information stored in the cell transistor under a condition in which the bus line has been charged to a predetermined voltage level; a constant voltage circuit coupled to the bus line, the constant voltage circuit generating a voltage having an approximately constant level when a current flows through the constant voltage circuit; and a current supply circuit, coupled to the bus line, for supplying a current to the constant voltage circuit via the bus line in accordance with a control signal supplied from an external unit, whereby the bus line is charged to a predetermined voltage level by the voltage generated by the constant voltage circuit.

REFERENCES:
patent: 4698789 (1987-10-01), Iizuka
patent: 5018107 (1991-05-01), Yoshida

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