Patent ID: 9487438
Filing Date: 2016-11-08
CPC Classification: C03C,C23C

Claim Text:
1. A method of making an insulating glass unit (IGU) comprising a first sheet of glass, a second sheet of glass, and a sealant assembly, the method comprising: a) providing a first sheet of glass and a second sheet of glass; b) depositing online, from a first coater positioned online, a first coating of an optical thin film coating on at least a portion of the first sheet of glass; c) depositing online, from a second coater positioned online, a second coating of the optical thin film coating on at least a portion of the first coating, wherein the second coating comprises fluorine doped tin oxide; and d) disposing a sealant assembly around the periphery of the first sheet of glass and the second sheet of glass for maintaining the first sheet and the second sheet in a spaced-apart relationship from each other; wherein the second coating is deposited from a gas stream comprising at least one precursor gas and an oxidizing agent at an elevated temperature; wherein the oxidizing agent is a solution of 10%-100% nitric acid.