Coated article having a protective coating containing silicon nitride and/or silicon oxynitride
AssigneeVitro Flat Glass LLC
InventorsAshtosh Ganjoo, Sudarshan Narayanan, James J. Finley, Paul V. Medwick
Life of this patent
Estimating the term…
Abstract
A coated article includes a substrate, a functional layer over at least a portion of the substrate, and a protective coating over at least a portion of the functional layer, wherein an uppermost layer of the functional layer is a metal oxide layer, and wherein the protective coating comprises a metal nitride layer and a metal oxynitride layer that is disposed between and in contact with at least part of the metal nitride layer and the metal oxide layer of the functional layer.
Claims14
A coated article comprising:
- a substrate;
- a first functional layer over at least a portion of the substrate, the first functional layer comprising a silver layer over at least a portion of the substrate and an uppermost layer comprising a metal oxide over at least a portion of the silver layer;
- a metal oxynitride layer comprising silicon directly over at least a portion of the uppermost layer comprising a metal oxide;
- a metal nitride layer comprising silicon over at least a portion of the metal oxynitride layer;
- and
- a protective layer comprising TiAlO over at least a portion of the metal nitride layer.
A coated article, comprising:
- a glass substrate;
- a first layer of zinc stannate directly over at least a portion of the glass substrate;
- a layer of zinc oxide directly over at least a portion of the layer of zinc stannate;
- a layer of silver directly over at least a portion of the layer of zinc oxide;
- a primer layer comprising Ti, TiAl, and/or oxides of either of the preceding directly over at least a portion of the layer of silver;
- a second layer of zinc stannate directly over at least a portion of the primer layer;
- a metal oxynitride layer comprising silicon directly over at least a portion of the second layer of zinc stannate;
- a metal nitride layer comprising silicon directly over at least a portion of the metal oxynitride layer;
- and
- a protective layer comprising TiAlO directly over at least a portion of the metal nitride layer.
A coated article, comprising:
- a glass substrate;
- a first layer of zinc stannate over at least a portion of the glass substrate and having a thickness ranging from 250 Å to 400 Å;
- a layer of zinc oxide over at least a portion of the layer of zinc stannate and having a thickness ranging from 70 Å to 90 Å;
- a layer of silver over at least a portion of the layer of zinc oxide and having a thickness ranging from 70 Å to 90 Å;
- a primer layer comprising Ti over at least a portion of the layer of silver and having a thickness ranging from 10 Å to 30 Å;
- a second layer of zinc stannate over at least a portion of the primer layer and having a thickness ranging from 30 Å to 100 Å;
- a metal oxynitride layer comprising SiON directly over at least a portion of the second layer of zinc stannate and having a thickness ranging from 70 Å to 400 Å;
- a metal nitride layer comprising SiN directly over at least a portion of the metal oxynitride layer and having a thickness ranging from 100 Å to 400 Å;
- and
- a protective layer comprising TiAlO over the metal nitride layer and having a thickness ranging from 100 Å to 400 Å.
Dependencies are inferred from the claim text.