Apparatus for mounting columns for grid array electronic...

Details Apparatus for mounting columns for grid array electronic... Apparatus for mounting columns for grid array electronic...

2007-11-13

2007-11-13

Vo, Peter (Department: 3709)

Metal working

Method of mechanical manufacture

Electrical device making

C294S064200, C294S065000, C248S362000, C248S363000, C269S021000, C174S250000, C336S200000, C430S005000, C430S311000

Reexamination Certificate

active

10904851

ABSTRACT:
A vacuum controlled fixture is provided for positioning columns on sites of an electronic substrate. The fixture includes an internal chamber having spaced apart first and second surfaces extending beneath its principal face. A regular array of column receiving holes extends from the principal face through the first surface of the chamber, and a plurality of vacuum ducts extend from ports in the second surface of the chamber to a vacuum source to evacuate the internal chamber. The ports in the second face of the chamber are laterally offset from the receiving holes in the first face of the chamber to allow seating of the interior ends of the columns on coplanar portions of the rear surface. The ports are preferably centered, equidistant from the closest adjacent receiving holes, thereby providing centering of the columns by means of a vacuum driven air flow around the latter.

REFERENCES:
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patent: 6202918 (2001-03-01), Hertz
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patent: 6510977 (2003-01-01), Hertz
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patent: 6805274 (2004-10-01), Inoue
patent: 2003/0042287 (2003-03-01), Inoue
patent: 2001298035 (2001-10-01), None

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