Patent ID: 9212417
Filing Date: 2015-12-15
Classification: C03C,C23C,Y02B,Y10T

Abstract:
1. An insulating glass (IG) window unit including a coated article including a coating supported by a glass substrate, the coating comprising: first and second infrared (IR) reflecting layers comprising silver, wherein said IR reflecting layers are spaced apart from one another by at least one dielectric layer that is located therebetween, and wherein the first IR reflecting layer is located closer to the glass substrate than is the second IR reflecting layer, wherein the first IR reflecting layer has a thickness of from about 125 to 150 Å, and the second IR reflecting layer has a thickness of from about 140 to 200 Å, and wherein the thickness of the second IR reflecting layer is greater than that of the first IR reflecting layer; a bottom dielectric stack provided between the first IR reflecting layer and the glass substrate, wherein the bottom dielectric stack comprises moving away from the glass substrate a first layer comprising silicon nitride, a layer comprising titanium oxide having a thickness of from about 70-120 Å, and a dielectric layer, and wherein the layer comprising titanium oxide is located between and directly contacting the first layer comprising silicon nitride and the dielectric layer; a center dielectric stack provided between the first and second IR reflecting layers, wherein the center dielectric stack comprises, moving away from the glass substrate, a first layer comprising tin oxide, a layer comprising silicon nitride, and a layer comprising zinc oxide, wherein the layer comprising zinc oxide is located directly under and contacting the second IR reflecting layer; a contact layer from about 4-12 Å thick and comprising Ni and Cr located over and directly contacting at least one of the IR reflecting layers comprising silver; and wherein the glass substrate is spaced apart from another glass substrate in the IG window unit, and wherein the IG window unit has an LSG value (T