Measuring and testing – Instrument proving or calibrating – Displacement – motion – distance – or position
Reexamination Certificate
2005-09-13
2005-09-13
Williams, Hezron (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Displacement, motion, distance, or position
C073S865800, C356S243400, C356S243700, C702S104000
Reexamination Certificate
active
06941792
ABSTRACT:
A surface inspection system, comprising a calibration wafer where particles of known specifications are spread, a wafer transport unit having a transport robot, a surface inspection unit, and a calibration wafer accommodation unit for accommodating the calibration wafer.
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Isozaki Hisashi
Matsuda Masanori
Fayyaz Nashmiya
Kabushiki Kaisha TOPCON
Nields & Lemack
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