- 专利标题: Systems and approaches for semiconductor metrology and surface analysis using secondary ion mass spectrometry
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申请号: US17821785申请日: 2022-08-23
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公开(公告)号: US11764050B2公开(公告)日: 2023-09-19
- 发明人: David A. Reed , Bruno W. Schueler , Bruce H. Newcome , Rodney Smedt , Chris Bevis
- 申请人: NOVA MEASURING INSTRUMENTS INC.
- 申请人地址: US CA Freemont
- 专利权人: NOVA MEASURING INSTRUMENTS INC.
- 当前专利权人: NOVA MEASURING INSTRUMENTS INC.
- 当前专利权人地址: US CA Freemont
- 代理机构: Reches Patents
- 主分类号: G01N23/2258
- IPC分类号: G01N23/2258 ; G01N23/22 ; H01J49/14 ; H01L21/66 ; H01J49/12 ; G01Q10/04 ; H01J49/26
摘要:
Systems and approaches for semiconductor metrology and surface analysis using Secondary Ion Mass Spectrometry (SIMS) are disclosed. In an example, a secondary ion mass spectrometry (SIMS) system includes a sample stage. A primary ion beam is directed to the sample stage. An extraction lens is directed at the sample stage. The extraction lens is configured to provide a low extraction field for secondary ions emitted from a sample on the sample stage. A magnetic sector spectrograph is coupled to the extraction lens along an optical path of the SIMS system. The magnetic sector spectrograph includes an electrostatic analyzer (ESA) coupled to a magnetic sector analyzer (MSA).
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