The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 1990
Filed:
Mar. 17, 1989
Rainer Buhl, Sargans, CH;
Balzers Aktiengesellschaft, Balzers, LI;
Abstract
A method and arrangement for the vacuum coating of workpieces by arc evaporation, comprises at least one evaporating cathode with a surface to be evaporated, an axis of the cathode intersecting the cathode surface. Workpieces to be coated are arranged around the axis at locations which are spaced radially outwardly and at an axial distance from the cathode surface. In order to prevent direct line of sight communication between the cathode surface and the workpieces, a visual shield is positioned between the cathode surface and the workpieces, which at least partly surrounds the axis. In this way, the ions which are evaporated from the cathode surface are deflected outwardly around the visual shield and toward the workpieces.