Patent ID: 7550179
Filing Date: 2009-06-23
Classification: C07F,C23C,H01L,Y02P

Abstract:
1. A method for depositing a copper-containing film on a surface of a substrate, comprising the steps of: i) dissolving a copper-containing precursor in a solvent, wherein the dissolving results in a supercritical or near-supercritical solution; wherein the precursor has a structural unit represented by Structure 1; and wherein L is a neutral ligand selected from a group consisting of alkynes, alkenes, nitriles, diazabutadiene and aromatic nitrogen heterocycles selected from a group consisting of pyridines, pyrazines, triazines, and N-substituted imidazoles, pyrazoles and triazoles; n=0.5,1, or 2; R iso-butyl and neopentyl; A is O (oxygen) or NR A ′ is O (oxygen) or NR R R ii) contacting the substrate with the solution; iii) heating the substrate to a temperature between about 60° C. and less than 150° C.; and iv) forming a copper-containing film on at least a portion of the substrate surface.