Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 31, 2011
Patent Application Number
11946153
Date Filed
November 28, 2007
Patent Primary Examiner
Patent abstract
A semiconductor includes a channel region in a semiconductor substrate, a gate dielectric film on the channel region, and a gate on the gate dielectric film. The gate includes a doped metal nitride film, formed from a nitride of a first metal and doped with a second metal which is different from the first metal, and a conductive polysilicon layer formed on the doped metal nitride film. The gate may further include a metal containing capping layer interposed between the doped metal nitride film and the conductive polysilicon layer.
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