Static information storage and retrieval – Systems using particular element – Flip-flop
Reexamination Certificate
2006-04-25
2006-04-25
Auduong, Gene N. (Department: 2827)
Static information storage and retrieval
Systems using particular element
Flip-flop
C365S063000, C365S230050, C257S390000
Reexamination Certificate
active
07035135
ABSTRACT:
In a multiport SRAM memory cell of the present invention, an access transistor of a first port is disposed in a p-type well, and an access transistor of a second port is disposed in a p-type well. The gates of all of transistors disposed in a memory cell extend in the same direction. With the configuration, a semiconductor memory device having a low-power consumption type SRAM memory cell with an increased margin of variations in manufacturing, by which a bit line can be shortened in a multiport SRAM memory cell or an associative memory, can be obtained.
REFERENCES:
patent: 5774393 (1998-06-01), Kuriyama
patent: 5808933 (1998-09-01), Ross et al.
patent: 5966317 (1999-10-01), O'Connor
patent: 6240009 (2001-05-01), Naffziger et al.
patent: 6347062 (2002-02-01), Nii et al.
patent: 6469328 (2002-10-01), Yanai et al.
patent: 6529401 (2003-03-01), Nii
patent: 6535453 (2003-03-01), Nii et al.
patent: 6822300 (2004-11-01), Nii
patent: 2001/0050380 (2001-12-01), Yanai et al.
patent: 2005/0083765 (2005-04-01), Jeong et al.
patent: 06-97393 (1994-04-01), None
patent: 10-178110 (1998-06-01), None
patent: 2001-28401 (2001-01-01), None
Auduong Gene N.
McDermott Will & Emery LLP
Renesas Technology Corp.
LandOfFree
Semiconductor memory device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor memory device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor memory device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3565612