Patent ID: 7759508

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 a copper complex on the substrate; and b. contacting the deposited copper complex with a reducing agent, wherein L is selected from the group consisting of C 2 -C 15 olefins, C 2 -C 15 alkynes, and aromatic heterocycles; R 1 and R 4 are the same and are selected from the group consisting of H, isobutyl, and neopentyl; or R 1 is isobutyl and R 4 is methyl, ethyl, isopropyl or neopentyl; or R 1 is neopentyl and R 4 is isopropyl; R 2 and R 3 are independently methyl or ethyl; R 5 is H; and the reducing agent is selected from the group consisting of 9-BBN (9-borabicyclo[3.3.1]nonane); diborane; boranes of the form BR x H 3-x , where x=0, 1 or 2, and R is independently selected from the group consisting of phenyl and C 1 -C 10 alkyl groups; dihydrobenzofuran; pyrazoline; disilane; silanes of the form SiR′ y H 4-y , where y=0, 1, 2 or 3, and R′ is independently selected from the group consisting of phenyl and C 1 -C 10 alkyl groups; and germanes of the form GeR″ z H 4-z , where z=0, 1, 2, or 3, and R″ is independently selected from the group consisting of phenyl and C 1 -C 10 alkyl groups.