Metal fusion bonding – Process – Plural diverse bonding
Patent
1994-02-02
1995-09-05
Rosenbaum, Mark
Metal fusion bonding
Process
Plural diverse bonding
B23K 3102, H05K 334
Patent
active
054472679
ABSTRACT:
An electronic part is tacked to a circuit board, leads of the electronic part being made into contact with cream solder built up on the circuit board, and thereafter, the circuit board is heated up so as to melt the cream solder in order to solder the electronic part to the circuit board. In this procedure, the melting temperature of a hardener in the tacking bond, that is, the hardening temperature of the tacking bond, is higher than that of the cream solder, thereby making it possible to prevent hindrance to sinking of the lead terminal of the electronic part into the melted cream solder.
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Kuroki Shinichi
Sakai Tadahiko
Elpel Jeanne M.
Matsushita Electric - Industrial Co., Ltd.
Rosenbaum Mark
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