Patent ID: 6316360
Filing Date: 2001-11-13
Classification: H01L

Abstract:
A method of forming a contact interface for a semiconductor device, comprising:providing a semiconductor substrate having a top surface, at least one active-device region, and a dielectric layer deposited over said top surface;creating at least one contact opening extending through said dielectric layer and including at least one sidewall, a bottom surface, and a continuous bottom corner formed where said at least one sidewall and said bottom surface intersect;depositing a conductive material by a high pedestal bias power IMP process to effect deposition of said conductive material along said continuous bottom corner of said at least one contact opening such that said conductive material contacts only a portion of said at least one sidewall adjacent said continuous bottom corner and only covers a portion of said bottom surface of said at least one contact opening adjacent said continuous bottom corner; andannealing said semiconductor substrate to react said conductive material to form a silicide material.