Invention Grant
- Patent Title: Inspection apparatus and inspection method
- Patent Title (中): 检验仪器和检验方法
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Application No.: US12771842Application Date: 2010-04-30
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Publication No.: US07999932B2Publication Date: 2011-08-16
- Inventor: Hiroyuki Yamashita , Yukihisa Mohara , Eiji Imai
- Applicant: Hiroyuki Yamashita , Yukihisa Mohara , Eiji Imai
- Applicant Address: JP Tokyo
- Assignee: Hitachi High-Technologies Corporation
- Current Assignee: Hitachi High-Technologies Corporation
- Current Assignee Address: JP Tokyo
- Agency: Miles & Stockbridge P.C.
- Priority: JP2007-083486 20070328
- Main IPC: G01N21/00
- IPC: G01N21/00 ; G01B11/02

Abstract:
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.
Public/Granted literature
- US20100208251A1 INSPECTION APPARATUS AND INSPECTION METHOD Public/Granted day:2010-08-19
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