Senju Metal Industry Co., Ltd.

Haruya Sakuma

Hiroyuki Yamasaki

Masato Shiratori

Yasuhisa Sukawa

A flux containing a rosin (P), a compound (SA), an activator (provided that a compound corresponding to the compound (SA) is excluded), and a solvent (provided that a compound corresponding to the compound (SA) is excluded) is adopted. The compound (SA) is a compound represented by General Formula (sa). In Formula (sa), R11 represents a hydrocarbon group which may have a hydroxy group; R12 and R13 each independently represent a hydrocarbon group having 5 or less carbon atoms, which may have a substituent, a hydroxy group, or a hydrogen atom; and m represents a positive integer.

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Tokyo, Japan

Haruya Sakuma