The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2007
Filed:
Jan. 23, 2002
Heinz Schicht, Bethau, DE;
Herbert Schindler, Torgau, DE;
Lars Ihlo, Torgau, DE;
Uwe Schmidt, Falkenberg, DE;
Heinz Schicht, Bethau, DE;
Herbert Schindler, Torgau, DE;
Lars Ihlo, Torgau, DE;
Uwe Schmidt, Falkenberg, DE;
Saint-Gobain Glass France, Courbevoie, FR;
Abstract
A multilayer film, capable of withstanding high thermal stresses, with silver as functional layer, a sacrificial metal layer placed on top of the silver layer and antireflection dielectric layers, has a metal nitride layer between the silver layer and the sacrificial metal layer. This metal nitride layer is composed in particular of SiNand/or AlN and constitutes an effective diffusion barrier. The optical and energy properties of the silver layer consequently remain, for the most part, preserved, even after undergoing high thermal stresses (for example of the bending or toughening type when curving and/or prestressing a window pane provided with the multilayer film).