公开(公告)号：US20240071713A1

公开(公告)日：2024-02-29

申请号：US18270707

申请日：2021-12-09

Applicant: ASML Netherlands B.V.

Inventor： Niels Johannes Maria BOSCH ,  Xu WANG ,  Peter Paul HEMPENIUS ,  Yongqiang WANG ,  Hans BUTLER ,  Youjin WANG ,  Jasper Hendrik GRASMAN ,  Jianzi SUI ,  Tianming CHEN ,  Aimin WU

IPC: H01J37/20

CPC classification number: H01J37/20 ,  H01J37/28 ,  H01J2237/20235

Abstract: There is provided a charged particle apparatus comprising: a particle beam generator, optics, a first and a second positioning device, both configured for positioning the substrate relative to the particle beam generator along its optical axis, and a controller configured for switching between a first operational mode and a second operational mode. The apparatus is configured, when operating in the first operational mode, for irradiating the substrate by the particle beam at a first landing energy of the particle beam and, when operating in the second operational mode, for irradiating the substrate at a second, different landing energy. When operating in the first operational mode, the second positioning device is configured to position the substrate relative to the particle beam generator at a first focus position of the particle beam and in the second operational mode, to position the substrate at a second, different focus position.