发明名称 INSPECTION SYSTEM
摘要 PURPOSE:To contrive improvement in working efficiency, to improve the reliability of inspection as well as to contrive improvement in the yield of production by a method wherein all the transfer processes of pattern to be used for inspection using a dummy wafer and the like are abbreviated, and foreign matters are inspected by performing a direct inspection on a reticle pattern. CONSTITUTION:Before a projection and exposing process is performed on the pattern of reticle 4 on a wafer 6, an X-Y table 7 is shifted, and a CCD17 is positioned at a point directly below a projection optical system 5. Under the above-mentioned condition, the pattern of the reticle 4 is projected on the CCD17, and at the same time, the X-Y table 7 is shifted in the direction of X and Y, and the CCD17 is scanned on the projected pattern 4A. At this time, the shifting of the X-Y table 7 is performed by controlling the X-Y table 7 position detecting action of a laser optical system 13 and a laser controlling circuit 14, and the driving action of a Y-driving part 11 and a table controlling circuit 12 using a stepper control circuit 16 and a central controlling part 19.
申请公布号 JPS61152012(A) 申请公布日期 1986.07.10
申请号 JP19840272822 申请日期 1984.12.26
申请人 HITACHI LTD 发明人 MAEJIMA HIROSHI;KOMORIYA SUSUMU;NAITOU TAKAMASA;WAKIYAMA FUMITOSHI;CHIKAOKA RYOSAKU
分类号 G01N21/88;G01N21/94;G01N21/956;G03F1/84;G03F7/20;H01L21/027;H01L21/30;H01L21/66 主分类号 G01N21/88
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