Patent ID: 8888982
Filing Date: 2014-11-18
Classification: C23C,C25D,H01J

Abstract:
1. A method of creating an oxide layer over a surface of an object comprising aluminum, copper and magnesium for use in a semiconductor processing system, the method comprising: providing the object, the object comprising a bulk material having: depositing a layer of a second material on the surface of the object, the second material having a second copper concentration less than the bulk copper concentration, oxidizing the surface of the object using a plasma electrolytic oxidation process to form the oxide layer comprising alumina and an oxide of magnesium, the step of oxidizing the surface of the object using a plasma electrolytic oxidation process comprising oxidizing at least a portion of a thickness of the layer of second material; and increasing a magnesium concentration of the layer of second material before formation of the oxide layer.