Patent ID: 7547615

Claim:
A method of reducing the number of steps in a semiconductor device manufacturing process, comprising: identifying a semiconductor device manufacturing process that comprises: (a) depositing a first silicon-containing film onto a single-crystal surface and a non-epitaxial surface, (b) forming a mask over the non-epitaxial surface to protect the first silicon-containing film over the non-epitaxial surface, (c) etching the first silicon-containing film over the single-crystal surface to expose the single-crystal surface, and (d) depositing a second silicon-containing film onto the exposed single-crystal surface; and modifying the semiconductor device manufacturing process by eliminating steps (b), (c), and (d) to provide a modified process capable of depositing in a single step a silicon-containing film that is epitaxial on the single-crystal surface and non-epitaxial on the non-epitaxial surface.