Metal fusion bonding – Process – Plural joints
Patent
1981-04-10
1983-12-20
Ramsey, Kenneth J.
Metal fusion bonding
Process
Plural joints
228 39, 228260, 228 57, B23K 108
Patent
active
044212658
ABSTRACT:
A solder mask (62) of special construction is mounted on each of a plurality of crystal filters (10) having continuous seams (16) defined by peripheral edges (20) of filter metal covers (14) and peripheral portions (18) of filter metal headers (12). The crystal filter-solder mask assemblies (10,62) then are passed over a solder wave (24) to solder the continuous seams (16) of the crystal filters (10) simultaneously. The crystal filters (10) are suspended on magnetic carriers (104) of an endless conveyor (106) as the filters pass over the solder wave. During the wave-soldering operation the solder masks (62) preclude solder from access to various critical areas of the crystal filters (10).
REFERENCES:
patent: 659381 (1900-10-01), Smyth
patent: 3871510 (1975-03-01), Homeier
Mass Soldering Loading Fixture Having Masking Pins, by A. E. Boyer, J. M. Habib, Western Electric, Jan. 1971.
Boyer Albert E.
Callahan John T.
Filocamo Peter P.
Bosben D. D.
Jordan M.
Ramsey Kenneth J.
Western Electric Company Inc.
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