Metal fusion bonding – Process – With condition responsive – program – or timing control
Patent
1992-03-25
1993-04-20
Heinrich, Samuel M.
Metal fusion bonding
Process
With condition responsive, program, or timing control
228232, 228 9, 219388, 432152, B23K 100, B23K 1012
Patent
active
052034879
ABSTRACT:
In a method and a system in which while carrying objects to be treated to a preheating chamber and a reflow chamber adjacent thereto, hot gases are blown against the objects to be treated by cross flow blowers provided in the preheating chamber and the reflow chamber to melt solder so as to solder electronic parts on a circuit substrate; a free air introducing port is controllably provided in the vicinity of an intake port of the cross flow blower in the preheating chamber, and an exhaust port and an exhaust fan for exhausting gases having an amount corresponding to the free air taken from the free air introducing port, out of the preheating chamber are provided.
REFERENCES:
patent: 4775776 (1988-10-01), Rahn et al.
patent: 4832249 (1989-05-01), Ehler
patent: 4876437 (1989-10-01), Kondo
patent: 4909430 (1990-03-01), Yokota
patent: 5039841 (1991-08-01), Kato et al.
patent: 5069380 (1991-12-01), Deambrosio
Itagaki Masato
Mishina Haruo
Wada Masahumi
Heinrich Samuel M.
Hitachi Techno Engineering Co. Ltd.
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