Geometrical instruments – Gauge – Straightness – flatness – or alignment
Reexamination Certificate
2006-11-07
2006-11-07
Guadalupe-McCall, Yaritza (Department: 2859)
Geometrical instruments
Gauge
Straightness, flatness, or alignment
C033S549000, C033S613000, C033S365000
Reexamination Certificate
active
07131209
ABSTRACT:
An apparatus for measuring a horizontal level of a wafer chuck, including a measuring part for contacting the wafer chuck to measure a horizontal level, a mounting part on which the measuring part is mounted, and a supporting part for supporting the mounting part. The measuring part may include a center gage and a plurality of edge gages.
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F. Chau & Associates LLC
Guadalupe-McCall Yaritza
Samsung Electronics Co,. Ltd.
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