Sense amp circuit, and semiconductor memory device using the...

Details Sense amp circuit, and semiconductor memory device using the... Sense amp circuit, and semiconductor memory device using the...

2011-04-12

2011-04-12

Phung, Ana (Department: 2824)

Static information storage and retrieval

Read/write circuit

Flip-flop used for sensing

C365S207000

Reexamination Certificate

active

07924642

ABSTRACT:
A differential input circuit receives differential input signals at a pair of differential input terminals and produces a pair of first differential output signals. A sensing circuit senses at least one of the pair of first differential output signals reaching a certain voltage and provides an activation signal. A latch-type amplifier provides a pair of second differential output signals when activated in accordance with the activation signal. A cutoff circuit establishes connection between the differential input circuit and the latch-type amplifier and breaks connection between the differential input circuit and the latch-type amplifier in accordance with the activation signal.

REFERENCES:
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patent: 2005/0007842 (2005-01-01), Nakashima
patent: 2009/0231939 (2009-09-01), Hsu et al.
Hiroshi Ito, et al., “Pure CMOS One-time Programmable Memory using Gate-Ox Anti-fuse,” IEEE 2004 Custom Integrated Circuits Conference, 2004, pp. 469-472.

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