Patent ID: 7704780
Filing Date: 2010-04-27
Classification: H01L

Abstract:
1. A method of fabricating a semiconductor integrated circuit structure, the method comprising the steps of: disposing a cover dielectric over a light sensitive device integral with a semiconductor substrate; and disposing a lens-formation dielectric over the cover dielectric, the lens-formation dielectric formed from a silicon-rich oxynitride having an index of refraction adjustable by changing relative atomic percentages of silicon, oxygen and nitrogen, wherein the step of disposing the cover dielectric over the light sensitive device comprises the steps of: applying a photoresist over the light sensitive device; exposing the photoresist in a preselected pattern; developing the photoresist in a preselected pattern, to remove the photoresist in conformance with the preselected pattern; etching the light sensitive device in the area where the photoresist has been exposed; and removing the photoresist remaining after etching to form the cover dielectric in the etched areas.