Patent ID: 8946075
Filing Date: 2015-02-03
Classification: H01L

Abstract:
1. A method of forming a transistor, said transistor having a gate structure comprised of a conductive material and a source/drain region, comprising: forming at least one layer of insulating material above said source/drain region; performing at least one first etching process to form a contact opening in said at least one layer of insulating material above at least a portion of said source/drain region, wherein, after the completion of said first etching process, at least an upper surface portion of said gate structure is exposed; performing a second etching process on said exposed portion of said gate structure to thereby define a gate recess in said gate structure, said recess having a bottom surface that is below an upper surface of said gate structure; selectively forming an oxidizable material at least in said gate recess; after selectively forming the oxidizable material, performing an oxidation process to convert at least a portion of said oxidizable material to an oxide material; and forming a conductive contact in at least said contact opening that is conductively coupled to said source/drain region.