Sense amplifiers including multiple precharge circuits and...

Details Sense amplifiers including multiple precharge circuits and... Sense amplifiers including multiple precharge circuits and...

2006-11-28

2009-02-24

Ho, Hoai V (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185180

Reexamination Certificate

active

07495961

ABSTRACT:
A sense amplifier of a flash memory device maintains a bit line precharge level before a memory cell is sensed. The sense amplifier maintains the voltage of a bias signal sufficiently high using a second precharging circuit in a precharging operation to stably maintain the bit line precharge level set by a first precharging circuit. Accordingly, the sense amplifier can correctly sense an OFF cell using the stabilized bit line precharge voltage. Related methods and memory devices are also disclosed.

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