Patent ID: 6569783
Filing Date: 2003-05-27
Classification: C23C,H01L,Y10S,Y10T

Abstract:
A method for forming a semiconductor device structure, the method comprising:depositing a barrier film on a region of electrically insulating material, the barrier film comprising a compound including nitrogen and at least one of titanium or tantalum, nitrogen in a concentration that varies within the barrier film, and oxygen in a concentration that varies within the barrier film; and depositing an electrically conducting material on at least a portion of the barrier film, wherein said step of depositing a barrier film includes varying the nitrogen content in the barrier film from about 30% to about 60% in atomic percent in the vicinity of the region of insulating material to about 0% in atomic percent in the vicinity of the region of the electrically conducting material, and varying the oxygen content in the barrier film from about 1% to about 5% in the vicinity of the region of insulating material to about 0% in atomic percent in the vicinity of the region of electrically conducting material.