Electric heating – Metal heating – Wire – rod – or bar bonding
Reexamination Certificate
2006-07-18
2006-07-18
Tran, Len (Department: 1725)
Electric heating
Metal heating
Wire, rod, or bar bonding
C219S056100, C219S086900
Reexamination Certificate
active
07078644
ABSTRACT:
In a resistance welding method and a resistance welding apparatus which prevent a decrease in bonding strength between a lead wire and a metal member due to a partially formed current flow path and which immediately removes a defective component from a manufacturing line, a plurality of second welding electrodes in contact with the metal member is provided so as to provide a plurality of current flow paths, and accordingly, to prevent an unevenly distributed current flow. The bonding strength is measured to determine whether it is satisfactory or not on the basis of currents flowing through the second welding electrodes. Also, the electronic component is fixed by the second welding electrodes after resistance welded.
REFERENCES:
patent: 2045523 (1936-06-01), Fassler
patent: 2272968 (1942-02-01), Dyer
patent: 3089020 (1963-05-01), Hurlebaus
patent: 3462577 (1969-08-01), Helms
patent: 5370300 (1994-12-01), Okumura
patent: 5773780 (1998-06-01), Eldridge et al.
patent: 5859400 (1999-01-01), Inagaki et al.
patent: 5897049 (1999-04-01), Nakamura et al.
patent: 07-291344 (1995-11-01), None
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
Tran Len
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