Patent ID: 7998878
Filing Date: 2011-08-16
Classification: C23C

Abstract:
1. A deposition method for forming a patterned thin film comprising: A) applying a composition comprising a deposition inhibitor material to a substrate, B) simultaneously or subsequently to step A), patterning the deposition inhibitor material to provide selected areas on the substrate where the deposition inhibitor material is absent, and C) depositing an inorganic thin film on the substrate by chemical vapor deposition only in those areas where the deposition inhibitor material is absent, wherein the deposition inhibitor material is a hydrophilic polymer that is soluble in an aqueous solution that comprises at least 50% by weight of water, and that has a free acid content of less than 2.5 meq/g of polymer, and wherein the hydrophilic polymer satisfies both of the following tests: a) it is soluble to at least 1% by weight in a solution containing at least 50 weight % water as measured at 40° C., and b) it provides an inhibition power of at least 200 Å to deposition of zinc oxide by an atomic layer deposition process.