Improved mechanical property of a Cu/Sn-9Zn-0.1Cr/Cu joint using a rapidly solidified solder

► Rapidly solidified Sn-9Zn-0.1Cr foils are produced by melt-spinning method. ► Effects of solders on the properties of the solder/Cu joints are studied. ► Rapidly solidified Sn-9Zn-0.1Cr alloy exhibits good solderability. ► Joint strength is improved markedly by using rapidly solidified Sn-9Zn-0.1Cr.