Patent ID: 7846489
Filing Date: 2010-12-07
Classification: B05B,B82Y,C23C,H01L,Y02E,Y02P

Abstract:
1. A process for forming a film on a substrate by chemical deposition, comprising: providing a first reactant; providing at least a second reactant; flowing the first and second reactants to a micromixer to mix the first and second reactants to form a mixture; heating the mixture for a period of time sufficient to form reaction flux useful for forming a chemical deposition material capable of reacting with a substrate surface; controlling residence time of the mixture in the micromixer to substantially avoid produce a substantially particle-free flux formation; heating a substrate to a temperature less than 90° C. to provide a heated substrate; and depositing the deposition material substantially continuously on the heated substrate using a microchannel applicator without an intermediate isolation step and prior to substantial formation of particles, where the continuously flowing solution removes byproduct formed by mixing the reactants; and allowing the deposition material to form a device-quality continuous film on the substrate by a chemical deposition process without heating to a temperature required for annealing, where the first and second reactants are selected to form Au, Ag, Cu, Co, Cr, Ge, Ni, Pt, Pd, Rh, Se, Si, Ru, Ag2S, Ag2Se, AgO, Ag2O, Al2O3, As2S3, BaO, Bi2S3, Bi2Se3, CdO, CdS, CdSe, CdSnO, CdTe, CdZnS, CeO2, CoS, CoSe, CoO, CrO2, CuBiS2, CuGaSe2, Cu(In,Ga)Se2, CuInSe2, CuInS2, Cu2.xS, Cu2, xSe, Cu20, FeO(OH), Fe203, Fe304, GaAs, GaN, Ga203, GaP, Ge, GeO2, HfO2, HgS, HgSe, InGaAs, InAs, In203, InP, In253, In2Se3, La203, MgO, MnS, MnO2, M002, MoS2, MoSe2, NbO2, NiS, NiSe, NiO, PbHgS, PbS, PbSe, PbTe, PbO2, ReO3, RhO2, RuO2, Sb2S3, Sb2Se3, SiGe, SiO2, SnS, SnS2, SnSe, SnO2, Sb2S3, TiO2, T1S, T1Se, T1203, VO2, WO2, Y203, ZnO, ZnS, ZnSe, ZrO2, or combinations thereof.