Static information storage and retrieval – Read/write circuit – Flip-flop used for sensing
Reexamination Certificate
2007-02-27
2007-02-27
Auduong, Gene N. (Department: 2827)
Static information storage and retrieval
Read/write circuit
Flip-flop used for sensing
C365S189050, C365S189070
Reexamination Certificate
active
11283195
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: 5517462 (1996-05-01), Iwamoto et al.
patent: 5717632 (1998-02-01), Richart et al.
patent: 6191989 (2001-02-01), Luk 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: 6621259 (2003-09-01), Jones et al.
patent: 6744300 (2004-06-01), Taguchi et al.
patent: 6865099 (2005-03-01), Tran et al.
patent: 6885600 (2005-04-01), Tran et al.
patent: 7038960 (2006-05-01), Tran et al.
Briner Michael Stephen
Frayer Jack Edward
Saiki William John
Tran Hieu Van
Auduong Gene N.
DLA Piper (US) LLP
Silicon Storage Technology, Inc.
LandOfFree
High speed and high precision sensing for digital multilevel... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High speed and high precision sensing for digital multilevel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High speed and high precision sensing for digital multilevel... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3829867