Invention Application
US20150239069A1 SOLDER PASTE, JOINING METHOD USING THE SAME AND JOINED STRUCTURE 审中-公开
焊膏,使用相同方式和接合结构的接合方法

SOLDER PASTE, JOINING METHOD USING THE SAME AND JOINED STRUCTURE
Abstract:
A solder paste including a metal component consisting of a first metal powder and a second metal powder having a melting point higher than that of the first metal, and a flux component. The first metal is Sn or an alloy containing Sn, the second metal is one of (1) a Cu—Mn alloy in which a ratio of Mn to the second metal is 5 to 30% by weight and (2) a Cu—Ni alloy in which a ratio of Ni to the second metal is 5 to 20% by weight, and a ratio of the second metal to the metal component is 36.9% by volume or greater.
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