Patent ID: 9644259
Date: 2017-05-09
CPC Classifications: C23C,H01J

Claim:
1. An apparatus for coating substrates with a coating material, comprising: a frame internal to a vacuum chamber and mounted on a door that at least partially forms the vacuum chamber when closed; a crucible arrangement including a first crucible and a second crucible disposed offset from one another in a horizontal plane, wherein the crucible arrangement is disposed on the frame; an electron gun in the vacuum chamber, wherein an electron beam of the electron gun is directed to a point of impact on the horizontal plane; at least one first shaft associated with the first crucible and at least one second shaft associated with the second crucible, wherein the at least one first and second shafts are disposed in the frame beneath the first and second crucibles, respectively; and a first lifting device associated with the at least one first shaft and a separate second lifting device associated with the at least one second shaft, wherein the first and second lifting devices are disposed in the frame and movable therewith; wherein the frame is linearly displaceable internal to and in the horizontal plane of the vacuum chamber, whereby the displacement is a back and forth movement inside the vacuum chamber in the direction of the offset such that one of the crucibles is placed in the a point of impact on the horizontal plane and the coating material in the crucible is vaporized when hit by the electron beam from the electron gun.