Abstract: A cover arrangement comprised of at least two pieces for covering a crucible within an electron beam source assembly. The cover includes a cover body and a cover insert to be separate from and carried by the cover body, when the cover body is raised and lowered. This arrangement also allows the cover insert to be lowered until it comes to rest on top of the crucible. Upon contact between the cover insert and the crucible, the cover insert can partially decouple from the cover body, allowing the cover body to travel down slightly further, allowing it to come into contact with the water-cooled body that surrounds the crucible, while insuring that the crucible insert is in good contact with the crucible. Closing this gap helps stop material that is evaporating from the active crucible pocket from migrating to inactive pockets, located under the cover, during the evaporation process.

Abstract: A cover arrangement comprised of at least two pieces for covering a crucible within an electron beam source assembly. The cover includes a cover body and a cover insert to be separate from and carried by the cover body, when the cover body is raised and lowered. This arrangement also allows the cover insert to be lowered until it comes to rest on top of the crucible. Upon contact between the cover insert and the crucible, the cover insert can partially decouple from the cover body, allowing the cover body to travel down slightly further, allowing it to come into contact with the water-cooled body that surrounds the crucible, while insuring that the crucible insert is in good contact with the crucible. Closing this gap helps stop material that is evaporating from the active crucible pocket from migrating to inactive pockets, located under the cover, during the evaporation process.

Abstract: A cover arrangement comprised of at least two pieces for covering a crucible within an electron beam source assembly. The cover includes a cover body and a cover insert to be separate from and carried by the cover body, when the cover body is raised and lowered. This arrangement also allows the cover insert to be lowered until it comes to rest on top of the crucible. Upon contact between the cover insert and the crucible, the cover insert can partially decouple from the cover body, allowing the cover body to travel down slightly further, allowing it to come into contact with the water-cooled body that surrounds the crucible, while insuring that the crucible insert is in good contact with the crucible. Closing this gap helps stop material that is evaporating from the active crucible pocket from migrating to inactive pockets, located under the cover, during the evaporation process.

Abstract: A cover arrangement comprised of at least two pieces for covering a crucible within an electron beam source assembly. The cover includes a cover body and a cover insert to be separate from and carried by the cover body, when the cover body is raised and lowered. This arrangement also allows the cover insert to be lowered until it comes to rest on top of the crucible. Upon contact between the cover insert and the crucible, the cover insert can partially decouple from the cover body, allowing the cover body to travel down slightly further, allowing it to come into contact with the water-cooled body that surrounds the crucible, while insuring that the crucible insert is in good contact with the crucible. Closing this gap helps stop material that is evaporating from the active crucible pocket from migrating to inactive pockets, located under the cover, during the evaporation process.

Abstract: A non-contact magnetic drive assembly with mechanical stop elements for a vacuum deposition system employing a lift-off process having a HULA configuration featuring a plurality of magnets coupled in an annular orientation to a central ring and an orbital ring, each magnet of the orbital ring becomes superposed with a magnet of the central ring as the orbital ring rotates, and a central drive component driving either the central ring, the orbital ring around the central ring or both simultaneously, the central drive component provides a rotational speed allowing non-contact, magnetic drive rotation of the orbital ring around the central ring until a difference between a magnetic drive torque of the superposed magnets and the rotational speed of the central drive component causes the superposed magnets to decouple enabling mechanical drive rotation by interactive contact between a plurality of central ring teeth and a plurality of orbital ring.

Abstract: An electron beam gun with an arched shaped beam former as an integral part of a massive cathode block which conducts heat away from the beam former and with a filament mounted to the cathode block for improved alignment.

Abstract: A physical vapor deposition coating system to produce orthogonal lift-off coatings. The system incorporates multiple domes that rotate about the source centerline and about another axis of rotation in order to assure an even coating and to utilize a large percentage of a material evaporated from the source.