Patent ID: 7329433

Claim:
A method of making a coated article, comprising the steps of: A) providing a substrate; B) depositing one or more dielectric layers over the substrate, the dielectric layers comprising: i) a first dielectric film comprising at least one film of zinc oxide, silicon oxide, tin oxide, silicon nitride, silicon oxynitride, or an oxide of an alloy of zinc and tin having zinc in a weight percent range of equal to or greater than 10 and equal to or less than 90 and tin in a weight percent range of equal to or less than 90 and equal to or greater than 10, and ii) a second dielectric film deposited over the first dielectric film, the second dielectric film comprising at least: a zinc oxide, tin oxide film, wherein the zinc oxide, tin oxide film has tin in a weight percent range of greater than 0 to less than 10 and the majority of the balance being zinc; and C) depositing one or more infrared reflective layers on at least one of the dielectric layers.