发明授权
- 专利标题: Inspection apparatus and inspection method
- 专利标题(中): 检验仪器和检验方法
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申请号: US13469071申请日: 2012-05-10
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公开(公告)号: US08525984B2公开(公告)日: 2013-09-03
- 发明人: Hiroyuki Yamashita , Yukihisa Mohara , Eiji Imai
- 申请人: Hiroyuki Yamashita , Yukihisa Mohara , Eiji Imai
- 申请人地址: JP Tokyo
- 专利权人: Hitachi High-Technologies Corporation
- 当前专利权人: Hitachi High-Technologies Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Miles & Stockbridge P.C.
- 优先权: JP2007-083486 20070328
- 主分类号: G01N21/00
- IPC分类号: G01N21/00
摘要:
An inspection apparatus includes a wafer stage for carrying a wafer, an illumination module which irradiates an inspection beam on the wafer carried on the wafer stage, a detection module which detects scattering rays or reflection rays from the wafer on the wafer stage and outputs an image signal, a coordinates control module which stores information about the arrangement of individual inspection areas on the wafer, and an imperfect area recognition module which recognizes, on the basis of the inspection area arrangement information stored in the coordinates control module, an imperfect inspection area interfering with a wafer edge.
公开/授权文献
- US20120224173A1 INSPECTION APPARATUS AND INSPECTION METHOD 公开/授权日:2012-09-06
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