Patent ID: 6274468
Filing Date: 2001-08-14
Classification: H01L

Abstract:
A method of manufacturing a borderless contact, the method comprising the steps of:providing a substrate having a gate structure formed thereon, a plurality of source/drain regions formed therein, and sidewall spacers formed on each side of the gate structure;forming an insulating layer conformal to the substrate profile above the substrate;removing a portion of the insulating layer so that the remaining insulating layer at least covers the gate structure and the source/drain regions;forming a dielectric layer over the substrate;forming an opening in the dielectric layer so that a portion of the insulating layer is exposed;forming a contact opening by removing a portion of the exposed insulating layer at the bottom of the opening so that a portion of the source/drain regions is exposed; andforming a contact inside the contact opening, wherein the contact couples electrically with the source/drain regions.