System and method for multiple mode inspection of a sample

    公开(公告)号:US10295476B1

    公开(公告)日:2019-05-21

    申请号:US16103535

    申请日:2018-08-14

    Abstract: A system and method for multiple mode inspection of a sample. The system includes a radiation source, an objective lens, a bright field detection module, a dark field detection module and optics. The optics, when the system operates at a first mode, is configured to direct the input beam through a first opening, without substantially blocking any part of the input beam, towards a first region of the objective lens. The optics, when the system operates at a second mode, is configured to direct the input beam through a second opening, without substantially blocking any part of the input beam, towards a second region of the objective lens. The first region of the objective lens differs from the second region of the objective lens.

Patent Agency Ranking