Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ken Takeuchi0
Date of Patent
August 12, 2008
Patent Application Number
11533638
Date Filed
September 20, 2006
Patent Primary Examiner
Patent abstract
A semiconductor integrated circuit device has a first memory cell group including a plurality of rewritable nonvolatile memory cells arranged on a semiconductor chip and a second memory cell group including a plurality of rewritable nonvolatile memory cells arranged on the semiconductor chip. Setting of the write threshold voltage of the memory cell of the first memory cell group and setting of the write threshold voltage of the memory cell of the second memory cell group are variable.
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