Patent ID: 9437546
Filing Date: 2016-09-06
CPC Classification: H01L

Claim Text:
1. A device structure comprising: a first gate structure on a substrate, the first gate structure comprising a first gate electrode layer; a second gate structure on the substrate, the second gate structure comprising a second gate electrode layer; a source /drain region in the substrate between a first side of the first side of the first gate structure and a second side of the second gate structure; a first spacer on the first side of the first gate structure and directly adjacent to the first side of the first gate structure; a second spacer on the second side of the second gate structure and directly adjacent to the second side of the second gate structure; a nitride etch stop layer directly adjacent to the second spacer; an interlayer dielectric directly adjacent to the nitride etch stop layer directly adjacent to the second spacer; and a first contact metal coupled to the source/drain region and in direct contact with the first spacer on the first side of first gate structure and in direct contact with the interlayer dielectric directly adjacent to the nitride etch stop layer directly adjacent to second spacer directly adjacent to the second side of the second gate structure.