Patent ID: 8307782
Filing Date: 2012-11-13
Classification: C23C,H01J,H01L

Abstract:
1. A deposition apparatus comprising: a first electrode on which a processing object is placable; a placing stage having a first surface on which the first electrode is mounted and a second surface opposite to the first surface; a second electrode for generating plasma with the first electrode, the second electrode being opposed to the first electrode; and a cooling part for cooling the processing object; wherein the first surface of the placing stage includes at least one concave at which the placing stage separates from the first electrode such that a contact area per unit area between a peripheral part of the processing object and the placing stage is larger than a contact area per unit area between a central part of the processing object and the placing stage, thereby causing a thermal resistance between the central part of the processing object and the cooling part to be larger than a thermal resistance between the peripheral part of the processing object and the cooling part.