Heat treatable coated article with anti-migration barrier between dielectric and solar control layer portion, and methods of making same
US6667121B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 2001 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Dec 30, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12944
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A heat treatable coated article includes an oxidation graded layer designed so as to include an at least partially oxided anti-migration or barrier layer(s) portion provided between a solar management layer portion (e.g., NiCr layer portion) and a dielectric layer (e.g., silicon nitride). In certain example embodiments, the anti-migration or barrier layer(s) portion may include a metal oxide, and function(s) to prevent element(s) from migrating between the solar management layer and the dielectric layer upon heat treatment (HT) of the coated article. As a result, the coated article has improved color stability (and thus a lower &Dgr;E* value) upon HT. In certain example embodiments, a single target may be used to sputter the graded layer including the anti-migration layer portions and the more metallic central portion. Coated articles herein may be used in the context of insulating glass (IG) window units, other architectural windows, vehicle windows, or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.