Patent ID: 8791012

Claim:
A method of manufacturing a semiconductor device comprising: providing a substrate; forming a dielectric layer over the substrate; forming conductive support structures for elements of a microelectromechanical system (MEMS) device at laterally spaced intervals and disposed outwardly from the dielectric layer; forming an anti-reflective layer by blanket deposition over the support structures and dielectric layer, the anti-reflective layer having an index of refraction greater than a minimum index of refraction of materials forming surfaces, including sidewalls, of the support structures; selectively removing portions of the anti-reflective layer from over the dielectric layer centrally in the intervals between the support structures, leaving other portions of the anti-reflective layer remaining over the sidewalls and top surfaces of the support structures, respective ones of the remaining portions encasing corresponding ones of the support structures; forming an anti-reflective coating (ARC) oxide layer over the remaining portions of the anti-reflective layer; and selectively removing portions of the ARC oxide layer to expose corresponding portions of the support structure top surfaces for conductive contact with the MEMS device elements.