Static information storage and retrieval – Systems using particular element – Flip-flop
Reexamination Certificate
2006-07-18
2006-07-18
Auduong, Gene N. (Department: 2827)
Static information storage and retrieval
Systems using particular element
Flip-flop
C365S189090, C365S226000
Reexamination Certificate
active
07079413
ABSTRACT:
A substrate potential setting circuits are provided which control substrate potentials in units of columns of a memory cell array at least in data writing. Upon data writing, the potential of the substrate region of memory cell transistors on a selected column is changed to reduce the data holding characteristics (static noise margin) to ensure high-speed data writing to the memory cells. Data writing is performed at high speed without impairing stability of data retention.
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Hiroshi Kawaguchi et al., “Dynamic Leakage Cutt-Off Scheme for Low-Voltage SRAM's”, IEEE 1998 Symposium on VLSI Circuits Digest of Technical Papers, pp. 140-141.
Nii Koji
Tsukamoto Yasumasa
Auduong Gene N.
McDermott Will & Emery LLP
Renesas Technology Corp.
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