| US 7,462,398 B2 | ||
| Coated article with zinc oxide over IR reflecting layer and corresponding method | ||
| Jean-Marc Lemmer, Luxembourg (Luxembourg); Pierre Pallotta, Villerupt (France); and Jose Ferreira, Luxembourg (Luxembourg) | ||
| Assigned to Centre Luxembourgeois de Recherches pour le Verre et la Ceramique S.A. (C.R.V.C.), Grand Duche de Luxembourg (Luxembourg) | ||
| Filed on Feb. 27, 2004, as Appl. No. 10/787,823. | ||
| Prior Publication US 2005/0191501 A1, Sep. 01, 2005 | ||
| Int. Cl. B32B 9/00 (2006.01) | ||
| U.S. Cl. 428—426 [428/428; 428/432; 428/434] | 15 Claims |
| 1. A coated article comprising a coating supported by a glass substrate, the coating comprising:
a dielectric layer comprising titanium oxide having a refractive index of at least 2.0 on and directly contacting the glass
substrate;
a layer comprising silicon nitride provided over and contacting the dielectric layer;
a first layer comprising zinc oxide located over and contacting the layer comprising silicon nitride;
an infrared (IR) reflecting layer comprising silver located over and contacting the first layer comprising zinc oxide;
a layer comprising an oxide of NiCr located over and contacting the IR reflecting layer;
a second layer comprising zinc oxide located over and contacting the layer comprising the oxide of NiCr;
another dielectric layer comprising silicon nitride located over the second layer comprising zinc oxide; and
wherein a dielectric layer stack between the glass substrate and the IR reflecting layer consists essentially of (a) said
dielectric layer comprising titanium oxide having the refractive index of at least 2.0 which contacts the glass substrate,
(b) said layer comprising silicon nitride, and (c) said layer comprising zinc oxide which contacts the IR reflecting layer,
so that said dielectric layer comprising titanium oxide contacts said layer comprising silicon nitride in said layer stack
between the glass substrate and the IR reflecting layer.
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