Patent ID: 7582356

Claim:
A glazing assembly comprising at least one transparent substrate, provided with a thin-film multilayer comprising, in the following order starting from the substrate: (a) a first dielectric layer comprising a barrier layer acting as a barrier to the diffusion of oxygen and comprising silicon nitrides; (b) a lower stabilizing layer made of at least one metal or metal alloy X selected from the group consisting of titanium, nickel, chromium, niobium, zirconium, tantalum, aluminum or a metal alloy containing at least one of these metals; (c) a functional layer having reflection properties in the infrared and/or in the solar radiation; (d) an upper metal blocking layer made of at least one metal or metal alloy Y selected from the group consisting of titanium, nickel, chromium, niobium, zirconium, tantalum, aluminum or a metal alloy containing at least one of these metals; (e) a second dielectric layer comprising a barrier layer acting as a barrier to the diffusion of oxygen and chosen from silicon nitrides; and (f) optionally, a protective oxide layer; in which multilayer the metal or alloy X of the lower stabilizing layer is different from the metal or alloy Y of the upper blocking layer.