Invention Grant
- Patent Title: Visual inspection apparatus, visual inspection method, and peripheral edge inspection unit that can be mounted on visual inspection apparatus
- Patent Title (中): 目视检查装置,目视检查方法和外围检查装置,可以安装在目视检查装置上
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Application No.: US11977880Application Date: 2007-10-26
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Publication No.: US07684031B2Publication Date: 2010-03-23
- Inventor: Atsutoshi Yokota , Hiroyasu Hebiishi , Shinichi Dosaka
- Applicant: Atsutoshi Yokota , Hiroyasu Hebiishi , Shinichi Dosaka
- Applicant Address: JP Tokyo
- Assignee: Olympus Corporation
- Current Assignee: Olympus Corporation
- Current Assignee Address: JP Tokyo
- Agency: Frishauf, Holtz, Goodman & Chick, P.C.
- Main IPC: G01N21/00
- IPC: G01N21/00

Abstract:
This visual inspection apparatus has a macro-inspection section and a micro-inspection section. In the micro-inspection section, a inspection stage and a microscope are loaded into a loading plate. The inspection stage can be moved in any directions of the X, Y, and Z directions, and can also be rotated in the θ direction. Moreover, a peripheral edge inspection section that acquires an enlarged image of a peripheral edge of wafer W is fixed to the loading plate. The peripheral edge inspection section is arranged so as to image the peripheral edge of wafer W held by the inspection stage.
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