Patent ID: 8278176

Claim:
A method of selectively forming semiconductor material in semiconductor windows, comprising: providing a substrate within a chemical vapor deposition chamber, the substrate comprising insulating surfaces and single-crystal semiconductor surfaces; blanket depositing semiconductor material over the substrate to deposit non-epitaxial semiconductor material over the insulating surfaces and simultaneously deposit epitaxial semiconductor material over the single-crystal semiconductor surfaces of the substrate, wherein blanket depositing includes manipulating a thickness ratio of the non-epitaxial semiconductor material over the insulating surfaces to the epitaxial semiconductor material over the single-crystal semiconductor surfaces to be less than about 1.6:1; and selectively removing the non-epitaxial semiconductor material from over the insulating surfaces, wherein blanket depositing and selectively removing are conducted within the chemical vapor deposition chamber further comprising repeating blanket depositing and selectively removing in a plurality of cycles, wherein each cycle adds to a thickness of epitaxial material over the single-crystal semiconductor surfaces.