Process for the production of service boxes

Details Process for the production of service boxes Process for the production of service boxes

1994-10-13

1997-02-11

Ramsey, Kenneth J.

Metal fusion bonding

Process

Plural joints

228214, H05K 328

Patent

active

056012276

ABSTRACT:
Special alloys of the kind responding to the formula of 95% Sn 5% Sb or 52% Sn 45% Pb 3% Sb having a melting point greater than 183.degree. C. are used in one of the preferred embodiments of the invention within this application as a first improvement in the welding of printed circuit boards. These alloys improve the quality of welding, as well as its influence on the long-term running of a service box, to the same as the life span of a car.

REFERENCES:
patent: Re29563 (1978-03-01), Manko
patent: 3894330 (1975-07-01), Bellis
patent: 3895158 (1975-07-01), Gause et al.
patent: 4789620 (1968-12-01), Sasaki et al.
patent: 5043221 (1991-08-01), Koleske

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