Invention Grant
- Patent Title: Charged particle beam device, charged particle beam influencing device, and method of operating a charged particle beam device
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Application No.: US15648931Application Date: 2017-07-13
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Publication No.: US10249472B2Publication Date: 2019-04-02
- Inventor: Dieter Winkler , Guy Eytan , Zvi Nir
- Applicant: ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH
- Applicant Address: DE Heimstetten
- Assignee: ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH
- Current Assignee: ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH
- Current Assignee Address: DE Heimstetten
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: H01J37/09
- IPC: H01J37/09 ; H01J37/21 ; H01J37/145 ; H01J37/147 ; H01J37/28 ; H01J37/244

Abstract:
A charged particle beam device is described, which includes: a beam source configured to generate a charged particle beam propagating along an optical axis (A); an aperture device with a first number of apertures configured to create a first number of beamlets from the charged particle beam, wherein the first number is five or more, wherein the apertures are arranged on a ring line around the optical axis (A) such that perpendiculars of the apertures onto a tangent of the ring line are evenly spaced. The charged particle beam device further includes an electrostatic multipole device configured to individually influence the beamlets. Further, a charged particle beam influencing device and a method of operating a charged particle beam device are described.
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