Patent ID: 6939578

Claim:
A process for forming copper deposits on a substrate comprising: a. contacting a substrate with a copper complex, (I), to form a deposit of the copper complex on the substrate; and b. contacting the deposited copper complex with a reducing agent, wherein R 1 and R 4 are independently selected from the group consisting of H, C 1 -C 5 alkyl, and dimethylamino; R 2 and R 3 are independently selected from the group consisting of H, C 1 -C 5 alkyl, phenyl, benzyl, and 4-pyridinyl, with the proviso that the total number of carbons in R 1 -R 4 is 4-12; and the reducing agent is selected from the group consisting of 9-BBN, borane, dihydrobenzofuran, pyrazoline, diethylsilane, dimethylsilane, ethylsilane, methylsilane, phenylsilane and silane.