Patent ID: 8609260
Filing Date: 2013-12-17
Classification: C03C,Y10T

Abstract:
1. A coated article including a coating supported by a substrate, the coating comprising: a first dielectric layer; a first IR reflecting layer, wherein the first dielectric layer is located between at least the substrate and the first IR reflecting layer; a contact layer comprising Ni and/or Cr located over and directly contacting the first IR reflecting layer; a second IR reflecting layer, wherein the first IR reflecting layer is located between the substrate and the second IR reflecting layer; a dielectric film located between at least the first and second IR reflecting layers, wherein the dielectric film located between at least the first and second IR reflecting layers comprises first and second layers comprising tin oxide that are spaced apart by at least a layer comprising silicon nitride, and wherein the first layer comprising tin oxide is located over and directly contacting the contact layer comprising Ni and/or Cr and is located closer to the substrate than is the second layer comprising tin oxide; and wherein the first layer comprising tin oxide is from 200-700 angstroms thick and is thicker than is the second layer comprising tin oxide, and wherein the second layer comprising tin oxide is from 50-200 angstroms thick.