Method for obtaining a heated glazing
AssigneeSaint-Gobain Glass France
InventorsGeorges Zagdoun, Pierre Chaussade, Vincent Legois
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Abstract
The subject of the invention is a method of obtaining a heated window, comprising depositing a continuous thin film of a transparent electronically conductive oxide, having a sheet resistance that is uniform over the entire area of the film, on a glass sheet; and subjecting the thin film to a plasma treatment in which a device that emits excited species of an oxygen plasma is placed facing a region of the thin film, and then a relative movement is created between the thin film and the device in order to treat differentially the various regions of the thin film, so that after the thin film has been treated it has regions with different sheet resistances.
Claims15
A method of obtaining a heated window, comprising:
- depositing a continuous thin film of a transparent electronically conductive oxide, having a sheet resistance that is uniform over the entire area of the film, on a glass sheet;
- and
- subjecting the thin film to a plasma treatment in which a device that emits excited species of an oxygen plasma is placed facing a region of the thin film, and then a relative movement is created between the thin film and the device in order to treat differentially the various regions of the thin film, so that after the thin film has been treated it has regions with different sheet resistances,
- wherein the excited species of the oxygen plasma locally increases the resistivity of the film subjected to the plasma treatment, and
- wherein the transparent electronically conductive oxide comprises at least one member selected from the group consisting of indium tin oxide, aluminium- or gallium-doped zinc oxide and fluorine- or antimony-doped tin oxide.
Dependencies are inferred from the claim text.