Sense amplifier of semiconductor memory device

Details Sense amplifier of semiconductor memory device Sense amplifier of semiconductor memory device

1996-12-27

1998-09-08

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 55, 327 57, G11C 706

Patent

active

058049924

ABSTRACT:
A sense amplifier of a semiconductor memory device which increases a voltage difference between a bit line and a dummy line is disclosed. The sense amplifier includes: a sense amplifying unit which pre-charges voltages of a dummy line connected to a dummy cell and of a bit line connected to a memory cell by a first equalizing signal, and which senses and amplifies data from the memory cell by inputting the voltages of the dummy line and the bit line by a sense amplifier enable signal; and a voltage variable unit which adjusts the voltages of the dummy line and the bit line by a second equalizing signal, said voltage variable unit having a first voltage variable part which adjusts the voltage of the dummy line by the second equalizing signal and a second voltage variable part which adjusts the voltage of the bit line by the second equalizing signal.

REFERENCES:
patent: 4716320 (1987-12-01), McAdams
patent: 5247483 (1993-09-01), Okamoto
patent: 5491435 (1996-02-01), Mun et al.
patent: 5559737 (1996-09-01), Tanaka et al.
patent: 5668765 (1997-09-01), Ang

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