Patent ID: 6534133
Filing Date: 2003-03-18
Classification: C23C,H01L

Abstract:
A chemical vapor deposition process for the in-situ preparation of conformal copper-doped aluminum coatings on a substrate in a chemical vapor deposition (CVD) reactor comprising:a. generating a first flow of a first reactant vapor directed to said substrate in said reactor, said first reactant vapor comprising a copper source precursor; b. heating said substrate to a temperature sufficient to decompose said first reactant vapor and form, directly on a surface of the substrate, a copper layer having a thickness of less than 10 nm; c. generating a second flow of a second reactant vapor directed to said substrate in said reactor, said second reactant vapor consisting of an aluminum source precursor, and optionally, a carrier gas; d. heating said substrate to a temperature higher than 185Â° C. to decompose said second reactant vapor and form a copper-doped aluminum film.