Patent ID: 6649521
Filing Date: 2003-11-18
Classification: C23C

Abstract:
A method for determining relevant deposition parameters in i-PVD processes, which comprises:transporting metal atoms and metal ions in a gas plasma, under an influence of electromagnetic fields, to a substrate and depositing the metal atoms and the metal ions on the substrate by: (A) calculating reaction rates for desired reagents of the gas plasma and of a material to be deposited, the material selected from at least one of the group consisting of a metal and a metal compound; (B) simulating an edge coverage of a predetermined structure with the deposited material based upon the reaction rates calculated in step (A) with simultaneous systematic variation of the relevant deposition parameters; (C) compiling, from results of the simulation of step (B), variant tables for the relevant deposition parameters for the predetermined structure; (D) executing an i-PVD process in a selected gas plasma and using a selected material over the predetermined structure; (E) experimentally verifying the simulated edge coverage for the product produced in step (D) with an imaging process; and (F) determining the relevant deposition parameters by comparing the experimental verification produced in step (E) with the variant tables compiled in step (C).