Patent ID: 9653261
Date: 2017-05-16
CPC Classifications: B82Y,H01J

Claim:
1. A charged particle lithography system for exposing a target, the system comprising: a charged particle beam generator for generating a charged particle beam; an aperture array for forming a plurality of beamlets from the charged particle beam; and a beamlet projector for projecting the beamlets onto a surface of the target, wherein the charged particle beam generator comprises: a charged particle source for generating a diverging charged particle beam; a collimator system for refracting the diverging charged particle beam, wherein the collimator system comprises a body comprising electrodes, wherein the electrodes define an inner surface of the body; and a cooling arrangement for removing heat from the collimator system, wherein the cooling arrangement is formed by the body, wherein the body comprises one or more cooling channels defined within the body and arranged for accommodating a flow of cooling fluid.