Patent ID: 9281200
Filing Date: 2016-03-08
CPC Classification: H01L

Claim Text:
1. A method of forming a semiconductor device, the method comprising: forming a gate layer stack above a first active region and a second active region, said gate layer stack comprising a semiconductor electrode material having a uniform material composition; forming a first gate electrode structure above said first active region and a second gate electrode structure above said second active region from said gate layer stack; forming a mask material laterally adjacent to said first and second gate electrode structures so as to cover said first and second active regions; forming a patterned implantation mask above said mask material, said patterned implantation mask covering said second gate electrode structure and exposing said first gate electrode structure; implanting a dopant species selectively into said semiconductor electrode material of said first gate electrode structure through said patterned implantation mask and in the presence of said mask material; removing said patterned implantation mask and said mask material from above said first and second active regions during a same material removal process; and performing an anneal process so as to distribute said dopant species.