Patent ID: 9647115
Date: 2017-05-09
CPC Classifications: H01L

Claim:
1. A method of forming a semiconductor structure, comprising: forming a first fin structure and a second fin structure on a substrate; epitaxially growing a first epitaxy structure and a second epitaxy structure respectively from the first and second fin structures, wherein the first epitaxy structure is spaced apart from the second epitaxy structure by a gap; epitaxially growing a first sacrificial structure and a second sacrificial structure respectively from the first and second epitaxy structures such that the first and second sacrificial structures are merged at the gap, and each of the first and second sacrificial structures has a material different from a material of the first and second epitaxy structures; forming a dielectric layer covering the first and second sacrificial structures; forming an opening passing through the dielectric layer to partially expose the first and second sacrificial structures; removing portions of the first and second sacrificial structures to expose portions of the first and second epitaxy structures; and forming a contact structure in contact with the exposed portions of the first and second epitaxy structures.