A method and its corresponding apparatus for the formation of at least two different layers superposed coating on a surface of an article. (Machine-translation by Google Translate, not legally binding)

摘要

A method and its corresponding apparatus for the formation of at least two different superimposed layers of coating on a surface of an article by vacuum deposition, characterized the method by which different sources of emission of atoms or molecules are used for the different layers of coating, being stationary during the deposition the surface and the emission focus; wherein the coating layers are formed in the same chamber without interrupting the partial vacuum between the deposition of the different successive layers; but in that after the deposition of a coating layer the emission sources are displaced in relation to the article so that during the deposition of the next layer the emission focus for such layer is in it, or substantially the same, oppositional relationship with the surface to be coated, which was the focus of emission for the previous layer when it was used. (Machine-translation by Google Translate, not legally binding)