H - Electricity – 05 – K
Patent
H - Electricity
05
K
H05K 3/34 (2006.01) B23K 3/08 (2006.01) B23K 35/38 (2006.01)
Patent
CA 2085820
A METHOD OF SOLDERING USING A SPECIAL ATMOSPHERIC GAS ABSTRACT OF THE DISCLOSURE: A method of soldering for surface mounting of a printed circuit board, which comprises performing reflow soldering with a rosin-based cream solder in a special atmospheric gas comprising an inert gas such as N2, Ar or He and containing about 10,000 ppm or less of oxygen and 0.5 - 3.0% of moisture is disclosed.
Chang Edward K.
Onishi Hiromitsu
Takenaka Iku
Tsujimoto Yoshiharu
Chang Edward K.
Gowling Lafleur Henderson Llp
Onishi Hiromitsu
Osaka Sanso Kogyo Ltd.
Takenaka Iku
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