| 摘要 |
A method of manufacturing an object in a vacuum treatment apparatus having a vacuum recipient for containing an atmosphere, includes the steps of supporting a substrate on a work piece carrier arrangement in the recipient and treating the substrate to manufacture the object in the vacuum recipient. The treating process includes generating electrical charge carriers in the atmosphere and in the recipient which are of the type that form electrically insulating material and providing at least two electroconductive surfaces in the recipient. Power, such as a DC signal, is supplied to at least one of the electroconductive surfaces so that at least one of the electroconductive surfaces receives the electrically insulating material for covering at least part of that electroconductive surface. This causes electrical isolation of that electroconductive surface which leads to arcing and damage to the object. A control signal is applied to the electroconductive surfaces during repeating and alternating first time spans and second time spans, for prevent arcing at the part of the electroconductive surfaces which is, or is becoming electrically isolated from the atmosphere by being covered by the electrical charge carriers.
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