Metal working – Method of mechanical manufacture – Electrical device making
Patent
1989-01-05
1990-04-17
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Electrical device making
264220, 361386, 361414, H05K 334
Patent
active
049168070
ABSTRACT:
Surface mounted circuit components having surface mount leads are mounted upon circuit boards having corresponding patterns of surface mount pads by a procedure wherein a male mold is made by positioning mold defining circuit components upon a transparent spacer which, in turn, is positioned over a circuit board or the equivalent. The transparent spacer is provided having vacuum transmission openings in it and the assemblage is positioned within vacuum forming apparatus to provide a transparent female mold. An arrangement for locating alignment pins may also be developed for the female mold. The female molds are mounted upon a universal back board along with alignment pins and production circuit components are inserted therein. Production circuit boards then are positioned over the female molds and inserted circuit components along with an adhesive for use in subsequent flow soldering connections, or a Re-Flow solder for that form of lead connection. A retainer is positioned over the assembled circuit board and the assemblage is inverted to expose the assembled circuit boards for Re-Flow or wave soldering processing.
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