Invention Grant
- Patent Title: Charged particle beam device
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Application No.: US16275775Application Date: 2019-02-14
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Publication No.: US10720306B2Publication Date: 2020-07-21
- Inventor: Toshiyuki Yokosuka , Chahn Lee , Hideyuki Kazumi , Hajime Kawano , Shahedul Hoque , Kumiko Shimizu , Hiroyuki Takahashi
- Applicant: Hitachi High-Technologies Corporation
- Applicant Address: JP Tokyo
- Assignee: Hitachi High-Tech Corporation
- Current Assignee: Hitachi High-Tech Corporation
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2ce540ea
- Main IPC: H01J37/28
- IPC: H01J37/28 ; H01J37/147 ; H01J37/20 ; H01J37/22

Abstract:
The scanning charged particle beam microscope according to the present application is characterized in that, in acquiring an image of the FOV (field of view), interspaced beam irradiation points are set, and then, a deflector is controlled so that a charged particle beam scan is performed faster when the charged particle beam irradiates a position on the sample between each of the irradiation points than when the charged particle beam irradiates a position on the sample corresponding to each of the irradiation points (a position on the sample corresponding to each pixel detecting a signal). This allows the effects from a micro-domain electrification occurring within the FOV to be mitigated or controlled.
Public/Granted literature
- US20190180979A1 CHARGED PARTICLE BEAM DEVICE Public/Granted day:2019-06-13
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