Patent ID: 7812542
Filing Date: 2010-10-12
Classification: H05G

Abstract:
1. An arrangement for the generation of extreme ultraviolet radiation by means of an electrically operated gas discharge, comprising: a discharge chamber which has a discharge area for a gas discharge for forming a radiation-emitting plasma; a first disk-shaped electrode and a second disk-shaped electrode; at least one of said electrodes being rotatably mounted and having an edge area to be coated by a molten metal; an energy beam source for supplying a pre-ionization beam; and a discharge circuit connected to the electrodes for generating high-voltage pulses; the edge area to be coated having at least one receiving area, which extends in a closed circumferential manner along the electrode edge on the electrode surface and which is formed so as to be wetting for the molten metal; and a coating nozzle for regenerative application of the molten metal having a shutoff valve connected to a valve regulating device being directed to said receiving area.