Patent ID: 9481603
Filing Date: 2016-11-01
CPC Classification: C03C

Claim Text:
1. A process for producing a substrate with a low emissivity (low-E) thin-film multilayer, the process comprising: (a) depositing a thin-film multilayer comprising a thin silver film between at least two thin dielectric films and an absorbent thin film on a face of a substrate, to obtain a coated face; and (b) heat treating the coated face with a source of laser radiation which emits a wavelength between 800 and 2000 nm, to obtain a treated face, wherein the heat treating reduces by at least 5% at least one selected from the group consisting of an emissivity and a sheet resistance of the multilayer, wherein the absorbent thin film absorbs the laser radiation during the heat treating, wherein the absorbent thin film is in contact with the air, and comprises: wherein the absorbent thin film has a thickness less than 5 nm.