Patent ID: 9716165
Date: 2017-07-25
CPC Classifications: H01L

Claim:
1. A semiconductor device, comprising: a semiconductor substrate; a gate structure formed over the semiconductor substrate; an epitaxial structure, as one of a source or drain region corresponding to the gate structure, formed partially within the semiconductor substrate, a vertically extending portion of the epitaxial structure extending vertically above a top surface of the semiconductor substrate in an area adjacent the gate structure, a laterally extending portion of the epitaxial structure extending laterally at an area below the top surface of the semiconductor substrate in a direction toward an area below the gate structure and beyond an area where the epitaxial structure extends vertically; an interlayer dielectric layer between a side surface of the vertically extending portion of the epitaxial structure and a side surface of the gate structure, wherein a top surface of the laterally extending portion of the epitaxial structure directly contacts the interlayer dielectric layer.