Patent ID: 9136131
Filing Date: 2015-09-15
Classification: H01L

Abstract:
1. A method comprising: providing a semiconductor structure, the structure comprising: a semiconductor substrate; a source region, a drain region and a channel region between the source region and the drain region; a gate region electrically coupled to the channel region; a source contact region electrically coupled to the source region; and a drain contact region electrically coupled to the drain region; wherein adjacent gate and contact regions are separated by spacers; filling the source and drain contact regions with a first filler material; filling the gate region with a second filler material that is planarizable and removable selective to the first filler material; creating a blanket layer of the second filler material over the filled regions; removing the second filler material layer selective to the first filler material from over the source and drain contact regions; removing the first filler material from the source and drain contact regions after removing the second filler material layer thereover; and simultaneously filling the gate region and the source and drain contact regions with a conductive material.