Patent ID: 9484187
Filing Date: 2016-11-01
CPC Classification: B82Y,F15D,G03F,G21K,H01J,Y10T

Claim Text:
1. Electron beam system comprising: a beamlet generator for generating a plurality of electron beamlets; a beamlet manipulator comprising an array of apertures for manipulating the plurality of electron beamlets; a frame part arranged to support the beamlet manipulator; a frame arranged to support the frame part via vibration damping elements; a plasma generator comprising a chamber in which a plasma may be formed, the chamber comprising a plasma chamber inlet for receiving an input gas, and one or more plasma chamber outlets for removal of at least one of the plasma and radicals created therein, the plasma generator further comprising one or more plasma generator outlets in flow connection with the one or more plasma chamber outlets, wherein the chamber is integrated into the frame part supporting the beamlet manipulator; a hollow guiding body for guiding radicals formed in the plasma towards the array of apertures at which contaminant deposition is to be removed; and a cover for placement over a connection between the hollow guiding body and an extended portion of a plasma generator outlet, wherein the hollow guiding body is removably connectable to the extended portion of the plasma generator outlet by said cover.