Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Sung Soo Chi0
Date of Patent
August 4, 2009
0Patent Application Number
120054800
Date Filed
December 27, 2007
0Patent Primary Examiner
Patent abstract
A column redundancy circuit is disclosed. The column redundancy circuit includes a first control signal generator configured to receive a refresh flag signal having an enable width larger than that of a refresh signal and a control signal and generate a pull-up control signal, a second control signal generator configured to receive the refresh flag signal and an address signal and generate a pull-down control signal, and a column repair fuse circuit configured to receive the pull-up control signal and the pull-down control signal and generate a redundant cell access signal.
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