Patent ID: 9570555
Date: 2017-02-14
CPC Classifications: H01L

Claim:
1. A method of forming a semiconductor device comprising: providing a first set of fin structures having a first pitch, and a second set of fin structure having a second pitch, wherein the second pitch is greater than the first pitch; forming an epitaxial semiconductor material on the first and second set of fin structures, wherein the epitaxial semiconductor material on the first fin structures is merging epitaxial material extending into contact between adjacent fin structures and the epitaxial material on the second fin structures is non-merging epitaxial material; forming a dielectric liner atop the epitaxial semiconductor material that is present on the first and second sets of fin structures; removing the dielectric liner from a portion of the non-merging epitaxial material that is present on the second set of fin structures; and forming a bridging epitaxial semiconductor material on exposed surfaces of the non-merging epitaxial material, the bridging epitaxial semiconductor material extending into contact between adjacent fin structures in the second set of fin structures.