Patent ID: 11948796
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 14:
15. A method of processing a substrate in a process chamber, comprising:
exposing the substrate having one or more fins into a process volume of the process chamber, wherein each of the one or more fins has a {100} plane and a {110} plane;
introducing precursor gases into the process chamber;
growing an epitaxial layer on the {100} plane of each of the one or more fins; and
etching an epitaxial layer on the {110} plane of each of the one or more fins, wherein:
growing the epitaxial layer and etching the epitaxial layer on the {110} plane of each of the one or more fins occur simultaneously,
growth of the epitaxial layer in the {100} plane of each of the one or more fins occurs at a greater rate than etch, and
etch of the epitaxial layer on the {110} plane of each of the one or more fins occurs at a greater rate than growth.