Static information storage and retrieval – Read/write circuit – Particular write circuit
Reexamination Certificate
2008-07-03
2010-10-19
Mai, Son L (Department: 2827)
Static information storage and retrieval
Read/write circuit
Particular write circuit
C365S154000, C365S156000, C365S189090, C365S189110
Reexamination Certificate
active
07817481
ABSTRACT:
A static random access memory decoder circuit includes a first cell supply line coupled to provide a first column of memory cells a first cell supply voltage and a second cell supply line coupled to provide a first column of memory cells a first cell supply voltage. The decoder circuit further includes a write assist circuit having a first threshold transistor coupled to the first cell supply line and a second threshold transistor coupled to the second cell supply line. In response to a write assist signal, the write assist circuit connects one of the first and second cell supply lines selected by control circuitry to an associated one of the first and second threshold transistors, such that a cell supply voltage of the selected one of the first and second cell supply lines is reduced toward the threshold voltage of the threshold transistor.
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Adams Chad Allen
Braceras George M.
Christensen Todd A.
Pilo Harold
Dillon & Yudell LLP
International Business Machines - Corporation
Mai Son L
Williams Robert R.
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