Patent ID: 8609510
Filing Date: 2013-12-17
Classification: H01L

Abstract:
1. A method for forming a device, the method comprising: providing a set of gate structures and a dummy gate structure over a substrate containing souce/drain regions formed therein; removing an inter poly dielectric (IPD) oxide over the dummy gate structure and the set of gate structures selective to a capping layer; removing the capping layer atop a dummy gate body of the dummy gate structure and atop a gate body of each of the set of gate structures; depositing a first oxide layer over the dummy gate structure and the set of gate structures; forming an opening in the first oxide layer over the dummy gate structure; extending the opening into the substrate; filling the opening with an oxide fill material; removing the first oxide layer and the oxide fill material selective to a gate body of each of the set of gate structures; and removing the gate body of each of the set of gate structures.