Patent ID: 8053348

Claim:
A method of forming a non-planar semiconductor device, said method comprising forming, on an insulator layer, a semiconductor body for said non-planar semiconductor device, said semiconductor body having end portions, a center portion positioned laterally between said end portions, a top surface and opposing sidewalls; forming a gate structure adjacent to said center portion of said semiconductor body such that said gate structure comprises: vertical sections, having vertical sidewalls, adjacent to said opposing sidewalls of said semiconductor body; and a horizontal section adjacent to said top surface of said semiconductor body; forming, on said vertical sidewalls of said vertical sections of said gate structure, sidewall spacers such that each sidewall spacer is non-tapered and has an essentially uniform thickness, said forming comprising selectively growing an epitaxial film on said vertical sidewalls; using said sidewall spacers as masks during at least one subsequent process; and after said using said sidewall spacers as masks, selectively removing said sidewall spacers.