Metal fusion bonding – Process – With measuring – testing – indicating – inspecting – or...
Patent
1977-06-13
1978-05-23
Kelly, Donald G.
Metal fusion bonding
Process
With measuring, testing, indicating, inspecting, or...
228180A, 228904, B23K 2100
Patent
active
040906558
ABSTRACT:
Stripped wire ends are coated with a "solder friendly" resin such that when they are placed in physical contact with terminals during assembly of electrical circuitry preparatory to soldering the same to the terminals, there is no appreciable conduction. After a routine soldering operation, the resin melts and vaporizes so that a solid electrical connection results, the resin itself serving to inhibit oxidation of the soldered connection. When a routine quality control testing operation is carried out on the electrical circuitry, any overlooked soldered connections will be immediately indicated by non conduction or poor conduction of the unsoldered portions as a result of the presence of the resin. These overlooked unsoldered connections can thus be immediately corrected. In the absence of the resin, the routine quality control testing would indicate a proper connection merely because of the physical contact of the wire with the terminal even though not soldered.
REFERENCES:
patent: 2657458 (1953-11-01), Passel
patent: 3662454 (1972-05-01), Miller
patent: 3763545 (1973-10-01), Spanjer
patent: 4013212 (1977-03-01), Miller
patent: 4028143 (1977-06-01), Stayner
Kelly Donald G.
Pastoriza Ralph B.
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