Patent ID: 8076658

Claim:
An electron beam processing device comprising: a chamber housing defining a chamber interior space and having a first opening, a carriage movable along the first opening, an electron beam generator disposed on the carriage such that an electron beam generated thereby passes through the first opening when the carriage moves along the first opening, and a disk disposed between the chamber housing and the carriage, the disk being rotatable about a rotational axis, which is perpendicular to the first opening, at least between a first rotational position and a second rotational position, wherein a second opening is defined in the disk and extends radially spaced from the rotational axis of the disk, wherein the rotational axis of the disk does not extend through the second opening, and wherein the rotational axis of the disk is stationary relative to the chamber housing during rotation between the first and second rotational positions and is disposed such that the first opening overlaps the second opening at least along an electron beam propagation axis when the disk rotates between the first rotational position and the second rotational position.