Patent ID: 6117770
Filing Date: 2000-09-12
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device, comprising said steps of:providing a semiconductor substrate with a dielectric layer formed thereon, wherein said dielectric layer overlays a region on said semiconductor substrate;forming an opening in said dielectric layer, said opening defined by walls of said dielectric layer and exposes a portion of said region on said semiconductor substrate;forming a barrier layer over said dielectric layer and in said opening, including along said walls, said barrier layer formed to a thickness insufficient to fill said opening;forming a conductive layer over said barrier layer and in said opening, including along said walls, said [barrier]conductive layer formed to a thickness sufficient to fill said opening;removing said conductive layer to said barrier layer outside said opening;implanting an implant material into said conductive layer and said barrier layer after said step of removing said conductive layer to said barrier layer outside said opening; andremoving said barrier layer outside said opening.