Patent ID: 9333593
Filing Date: 2016-05-10
CPC Classification: B23K,C22C,H01G,H05K,Y02P,Y10T

Claim Text:
1. A method of joining objects to each other, the method comprising: locating an insert material between a first joining object and a second joining object, the first joining object and/or the second joining object having a first metal composed of Sn or an alloy containing Sn, the insert material containing, as a main component, a second metal which is an alloy containing at least one selected from among Cu—Ni, Cu—Mn, Cu—Al and Cu—Cr alloys, which each contain 70% or more of Cu, the first metal having a lower melting point than the second metal; and subjecting the first joining object and the second joining object to a heat treatment while the insert material is located therebetween until an intermetallic compound of the first metal and the second metal is produced such that the first joining object and the second joining object are joined to each other.