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Sn-Ag-Cu  (216 225℃)   Sn-Pb  (183℃)   30℃  ,          .        Sn-Pb           .   Sn-Zn  (199 ℃)  Sn-Pb           . , Sn-Zn         . ,  (reactivity)   (wettability)     .       (vacuum, gas purging, partial oxygen pressure, etc.)  (flux)    . Sn-Zn         / Table 1 . , Sn-Zn          3 (Ag, Al, Bi, In, Ga, etc.)

Development of Sn-Zn Based Low Temperature Lead-Free Solder for Improvement of Oxidation Resistance