Printed circuit board inspection apparatus and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 21, 2000
Grant Date -
N/A
app pub date -
Aug 28, 1997
filing date -
Aug 29, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A printed circuit board inspection apparatus having upper and lower jigs with the former moveable horizontally and the latter movable vertically and with a camera mounted on the former. Reference holes are provided on the upper jig and on a positioning plate mounted on the lower jig and, in accordance with the method of the invention, photographs are taken of the reference marks simultaneously with the positioning plate engaging the upper jig. Reference mark alignment is calculated from the photographs and the upper jig is moved horizontally to correct misalignment.
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