Patent ID: 6632736
Filing Date: 2003-10-14
Classification: C23C,H01L

Abstract:
A process of making a contact structure for an integrated circuit comprising:providing a silicon region on a surface of a semiconductor wafer for making electrical contact thereto; depositing a dielectric layer over at least a portion of the silicon region; etching a contact opening through the dielectric layer for exposing a portion of the silicon region, the contact opening having a side wall; depositing a titanium metal layer within the contact opening for covering the portion of the silicon region exposed by the contact opening; depositing a predominantly amorphous titanium carbonitride film having predominantly no definite crystalline structure and having predominantly no crystalline titanium therein, the predominantly amorphous titanium carbonitride film for lining the side wall of the contact opening to overlay the titanium metal layer covering the portion of the silicon region exposed by the contact opening; and filling at least a portion of the contact opening using a conductive material.