Patent ID: 6210755
Filing Date: 2001-04-03
Classification: C23C

Abstract:
A method for generating a continuous vapor stream containing a compound having gallium therein in monovalent form in a vacuum coating procedure for vacuum coating a substrate, comprising the steps of:providing an evacuation chamber which is closed on all sides and which has a vapor stream exit opening;disposing a multivalent gallium-containing evaporation substance, selected from the group consisting of evaporation substances containing gallium in bivalent form and evaporation substances containing gallium in trivalent form, in said evaporation chamber;disposing metallic gallium in said evaporation chamber;evaporating said evaporation substance in said evaporation chamber and thereby generating a vapor which comes into contact with said metallic gallium, for reducing said multivalent gallium to monovalent gallium and causing a continuous vapor stream, containing said monovalent gallium, to exit from said evacuation chamber via said vapor exit opening.