Patent ID: 9246003
Filing Date: 2016-01-26
CPC Classification: H01L

Claim Text:
1. A method of forming a semiconductor structure, the method comprising: forming a gate above a portion of a semiconductor fin on a substrate; forming a spacer on a sidewall of the gate; removing a portion of the semiconductor fin not covered by the spacer or the gate to expose a sidewall of the fin; etching the sidewall of the fin to form an angled recess region beneath the spacer; growing a first epitaxial semiconductor region on the substrate, the first epitaxial semiconductor region filling the angled recess region and contacting the fin; removing portions of the first epitaxial semiconductor region outside of the angled recess region; and growing a second epitaxial semiconductor region on the substrate, the second epitaxial semiconductor region contacting a portion of the first epitaxial semiconductor region in the angled recess region.