Patent ID: 6444577
Filing Date: 2002-09-03
Classification: H01L

Abstract:
A method of forming a semiconductor structure, comprising:providing a silicon substrate on which said semiconductor junction is to be fabricated; fabricating a field oxide layer on said silicon substrate, said field oxide layer having a boundary along at least one edge thereof and forming a bird's beak at said boundary; doping a region of said silicon substrate, said region having a first boundary adjoining the boundary of said field oxide layer and a second boundary extending along an edge thereof opposite of the first boundary; depositing a silicon dioxide mask layer over said field oxide layer and a portion of said doped region to overly said bird's beak and the second boundary of the region, said mask layer leaving a portion of said doped region exposed; depositing a metal on at least part of the exposed portion of said doped region of said substrate; processing said metal to form a silicide layer covering at least part of the exposed portion of said doped region of said substrate; and forming an insulating layer on said field oxide layers, the mask layer and portions of the silicide layer.