Patent ID: 7914620
Filing Date: 2011-03-29
Classification: C23C

Abstract:
1. A device for supporting a heating crucible, comprising: a supporting table having an upper surface in which a plurality of holes are formed; a heating wire arranged in each of the holes of the supporting table, the heating crucible positioned within each of the holes of the supporting table; and a contamination prevention plate arranged at an entrance of each of the holes of the supporting table, the contamination prevention plate including an opening portion corresponding to the hole and extending outside of the hole, and a shield portion extending along only a partial portion of an inner wall of the hole, wherein: a portion of the heating wire is between a lower portion of the shield portion of the contamination prevention plate and an upper portion of the heating crucible, and substantially an entire length of the shield portion that extends along the inner wall of the hole and surrounds the heating crucible has a constant radius, and the contamination prevention plate includes a protruding portion extending toward a central axis of the hole and overlapping the heating wire.