发明名称 |
Scanning electron microscope |
摘要 |
An object of the present invention is to provide a scanning electron microscope including decelerating-electric-field forming means for decreasing the energy of a beam of electrons reaching a sample, and being capable of selectively detecting BSEs with high efficiency. To this end, the scanning electron microscope including the decelerating-electric-field forming means has a detector for detecting electrons. The detector includes a part for receiving the electrons at a position which is positioned outside trajectories of SEs accelerated by the decelerating-electric-field forming means, and which is further away from the optical axis of the beam of electrons than the trajectories of the SEs.
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申请公布号 |
US7705302(B2) |
申请公布日期 |
2010.04.27 |
申请号 |
US20080021810 |
申请日期 |
2008.01.29 |
申请人 |
HITACHI HIGH-TECHNOLOGIES CORPORATION |
发明人 |
AOKI YASUKO;SAWAHATA TETSUYA;ARAKI MINE;MUTO ATSUSHI;TAKEUCHI SHUICHI |
分类号 |
H01J37/28;G01N23/00;H01J37/26 |
主分类号 |
H01J37/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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