Patent ID: 6824814
Filing Date: 2004-11-30
Classification: C23C,G11C,H01L

Abstract:
A method of forming a perovskite thin film comprising:preparing a perovskite precursor solution including the following hydrated metal acetic acids: La(OACa)3.H2O, Ca(OACa)2.H2O, Pb(OACa)2.3H2O, and Mn(OACa)3.2H2O; preparing a silicon substrate for deposition of a perovskite thin film, including forming a bottom electrode on the substrate; securing the substrate in a spin-coating apparatus and spinning the substrate at a predetermined spin rate; injecting the perovskite precursor into the spin-coating apparatus thereby coating the substrate with the perovskite precursor solution to form a coated substrate; baking the coated substrate at temperatures which increase incrementally from about 90Â° C. to 300Â° C.; and annealing the coated substrate at a temperature of between about 500Â° C. to 800Â° C. for between about five minutes to fifteen minutes.