Patent ID: 6090963
Filing Date: 2000-07-18
Classification: C23C

Abstract:
A volatile metal (M) precursor compound for applying chemical vapor deposition (CVD) metal to selected surfaces, the precursor compound having the following structural formula:((R.sup.1)(R.sup.2)C.dbd.C(R.sup.3)(R.sup.4))M.sup.+1 (hfac)in which R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are selected from the group consisting of H, C.sub.1 to C.sub.8 alkyl, C.sub.1 to C.sub.8 haloalkyl, and C.sub.1 to C.sub.8 alkoxyl, whereby a stable alkene ligand precursor capable of high metal deposition rates is formed, the compound further including an alkene additive to create a metal precursor blend, the additive being less than approximately 10% by weight ratio of the precursor blend, the alkene additive having the following structural formula:(R.sup.1)(R.sup.2)C.dbd.C(R.sup.3)(R.sup.4)in which R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are selected from the group consisting of H, C.sub.1 to C.sub.8 alkyl, C.sub.1 to C.sub.8 haloalkyl, and C.sub.1 to C.sub.8 alkoxyl, whereby the precursor is further stabilized in a liquid phase.