Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Young-Hoon Oh0
Kwang-Myoung Rho0
Date of Patent
June 29, 2010
0Patent Application Number
123541580
Date Filed
January 15, 2009
0Patent Primary Examiner
Patent abstract
A semiconductor memory device includes: a variable delay for delaying a delay locked loop (DLL) clock by a predetermined delay time to output a delayed DLL clock; an output driver for outputting data and data strobe signal in response to the delayed DLL clock; and a calibration controller for controlling the predetermined delay time of the variable delay in response to output AC parameters.
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