Process for the treatment of thin films having properties of electrical conduction and/or reflection in the infrared

摘要

A method is provided for generating one or more differentiated zones of electrical conductivity or infrared emissivity in a thin semi-conducting layer of metallic oxide or oxides, comprising: subjecting the thin semi-conducting layer to an ion beam having sufficient energy to cause a change in electrical conductivity or infrared emissivity of the one or more zones without atomizing the thin semi-conducting layer, wherein the thin semi-conducting layer is at a high temperature during the subjecting step and the use of the method to prepare films for incorporation into transparent heating panes having uniform heating characteristics, especially for use in vehicles.