Micro-fluidic injection molded solder (IMS)

Metal fusion bonding – Including means to apply flux or filler to work or applicator

Reexamination Certificate

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Details

C228S256000, C228S180210, C228S180220, C222S251000, C222S288000, C222S564000, C222S591000

Reexamination Certificate

active

07980446

ABSTRACT:
A portion of compliant material includes four walls defining a slot. The slot has a relatively large cross-section end in fluid communication with a solder reservoir, and also has a relatively small cross-section end opposed to the relatively large cross-section end. The slot has a generally elongate rectangular shape when viewed in plan, with a length perpendicular to a scan direction, a width, parallel to the scan direction, associated with the relatively large cross section end, and a width, parallel to the scan direction, associated with the relatively small cross section end. The slot is configured in the portion of compliant material such that the relatively small cross-section end of the slot normally remains substantially closed, but locally opens sufficiently to dispense solder from the reservoir when under fluid pressure and locally unsupported by a workpiece. Methods of operation and fabrication are also disclosed.

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U. S. Appl. No. 11/869,573, filed Oct. 9, 2007 and entitled “Sprocket Opening Alignment Process and Apparatus for Multilayer Solder Decal.”
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U. S. Appl. No. 12/269,240, filed Nov. 12, 2008 and entitled “Injection Molded Solder Method for Forming Solder Bumps on Substrates.”

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