Patent ID: 6902625
Filing Date: 2005-06-07
Classification: C23C

Abstract:
1. A crucible cover for a multiple pocket vapor source wherein vapor is produced by an electron beam that can be directed to uncovered crucible pockets, comprising: (a) a crucible having a crucible surface, the surface having a plurality of pockets for holding coating materials to be evaporated; and (b) a crucible cover with a covering surface facing the crucible, where the pockets are covered or uncovered by automatically lifting the crucible cover, rotating the crucible and lowering the crucible cover, and where cover has features isolating each pocket from each adjacent pocket without contact between the cover and the crucible, including isolating the uncovered pocket from the covered pockets such that contamination from heated vapors is minimized and deposition on the cover and crucible does not result in cross-contamination between pockets.