Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 23, 2018
Patent Application Number
14687447
Date Filed
April 15, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present disclosure provides a semiconductor structure in accordance with some embodiments. The semiconductor structure includes a semiconductor substrate; and a gate stack disposed on the semiconductor substrate; wherein the gate stack includes a high k dielectric material layer, and various metal layers disposed on the high-k dielectric material layer, wherein the gate stack has a convex top surface.
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