Patent ID: 6686050
Filing Date: 2004-02-03
Classification: B32B,C03C,C23C,Y10T

Abstract:
A coated article comprising:a coating provided on a glass substrate, said coating comprising: a) at least one dielectric layer; b) a first contact layer; c) a first IR reflecting layer; d) a second contact layer, said first IR reflecting layer contacting each of said first and second contact layers; e) at least one dielectric layer; f) a third contact layer; g) a second IR reflecting layer; h) a fourth contact layer, said second IR reflecting layer contacting each of said third and fourth contact layers; i) at least one dielectric layer; wherein after being heat treated (HT) said coated article has a visible transmittance of at least 70%, a Tsolar no greater than 50%, an Rsolar of at least 26%, and a sheet resistance (Rs) of no greater than 8.0 ohms/sq; and wherein said a) at least one dielectric layer comprises Si-rich SixNy where x/y is from 0.76 to 1.5.