Invention Grant
- Patent Title: Method and apparatus for charged particle beam inspection
- Patent Title (中): 带电粒子束检查的方法和装置
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Application No.: US12506475Application Date: 2009-07-21
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Publication No.: US08368018B2Publication Date: 2013-02-05
- Inventor: Masahiro Hatakeyama , Takumi Ota
- Applicant: Masahiro Hatakeyama , Takumi Ota
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Ebara Corporation,Kabushiki Kaisha Toshiba
- Current Assignee: Ebara Corporation,Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2008-188214 20080722
- Main IPC: G01N23/00
- IPC: G01N23/00

Abstract:
A charged particle beam inspection apparatus comprises: an electron gun for irradiating an electron beam onto a sample; a detector for detecting a signal obtained from the sample; an image processor for forming an image from the signal obtained from the detector, and an energy controller for controlling the beam energy of the electron beam to be irradiated onto the sample. An identical charged particle beam inspection apparatus carries out a plurality of types of inspections. An inspection apparatus of a projection type may be applied thereto. A pattern defect inspection, a foreign material inspection, and an inspection for a defect in a multilayer are carried out. Beam energies E1, E2, and E3 in those inspections have a relation E1>E2 and E3>E2. Charge removal is performed in a transport chamber or other vacuum chamber before an inspection.
Public/Granted literature
- US20100019147A1 METHOD AND APPARATUS FOR CHARGED PARTICLE BEAM INSPECTION Public/Granted day:2010-01-28
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