Metal fusion bonding – With means to juxtapose and bond plural workpieces – Plural discrete workpieces
Patent
1991-07-01
1992-04-07
Heinrich, Samuel M.
Metal fusion bonding
With means to juxtapose and bond plural workpieces
Plural discrete workpieces
228105, 228242, 228 42, B23K 1015
Patent
active
051020289
ABSTRACT:
A localized soldering station is described that uses the vapor phase reflow principle. A container has of a medium selected because of the temperature at which it changes to a vapor. A heated conduit maintains the vapor state while conveying the vapor to a work location where a module with a part to be removed or attached by solder connections is supported. A transparent, quartz nozzle confines the vapor to the part and its solder connections and is positioned accurately by a unit that includes a guide light. Vapor will lose its latent heat of vaporization upon contact with the part and its solder connections, causing the solder to reflow and change back to a liquid, which is collected for reuse. When in a standby or ready condition, vapor is conveyed up through a shutoff valve through cooling fins where it changes back to a liquid and returns to the container, avoiding loss.
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Glovatsky Andrew Z.
Lynch Robert J.
Motto, Jr. James G.
Repchak Steve A.
Vittone Jean M.
Clarkson Douglas M.
Heinrich Samuel M.
International Business Machines - Corporation
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