Static information storage and retrieval – Read/write circuit – Flip-flop used for sensing
Reexamination Certificate
2006-05-02
2006-05-02
Auduong, Gene N. (Department: 2827)
Static information storage and retrieval
Read/write circuit
Flip-flop used for sensing
C365S189070, C365S210130
Reexamination Certificate
active
07038960
ABSTRACT:
A digital multilevel non-volatile memory includes a massive sensing system that includes a plurality of sense amplifiers disposed adjacent subarrays of memory cells. The sense amplifier includes a high speed load, a wide output range intermediate stage and a low impedance output driver. The high speed load provides high speed sensing. The wide output range provides a sensing margin at high speed on the comparison node. The low impedance output driver drives a heavy noisy load of a differential comparator. A precharge circuit coupled to the input and output of the sense amplifier increases the speed of sensing. A differential comparator has an architecture that includes analog bootstrap. A reference sense amplifier has the same architecture as the differential amplifier to reduce errors in offset. The reference differential amplifier also includes a signal multiplexing for detecting the contents of redundant cells and reference cells.
REFERENCES:
patent: 4242739 (1980-12-01), Hori et al.
patent: 5493533 (1996-02-01), Lambrache
patent: 5517462 (1996-05-01), Iwamoto et al.
patent: 5717632 (1998-02-01), Richart et al.
patent: 6282145 (2001-08-01), Tran et al.
patent: 6574129 (2003-06-01), Tran
patent: 6597598 (2003-07-01), Tran et al.
patent: 6788608 (2004-09-01), Tran et al.
patent: 6885600 (2005-04-01), Tran et al.
patent: 6940744 (2005-09-01), Rinerson et al.
Briner Michael Stephen
Frayer Jack Edward
Saiki William John
Tran Hieu Van
Auduong Gene N.
DLA Piper Rudnick Gray Cary US LLP
Silicon Storage Technology, Inc.
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