Patent ID: 8517249
Filing Date: 2013-08-27
Classification: B23K,H01L,H05K,Y10T

Abstract:
1. A soldering structure comprising: a substrate; a bonding layer formed directly on the substrate and comprises a first surface in direct contact with a portion of one surface of the substrate; and a lead-free solder which is formed on and directly bonds to a second surface of the bonding layer, wherein a portion of the bonding layer directly contacts the lead-free solder and the portion contains Zn, wherein the bonding layer is a single-layer material layer, wherein the bonding layer is a Zn alloy layer, wherein the substrate is a supporting structure, and the one surface of the substrate is greater in size than the first surface of the bonding layer, and wherein the Zn alloy layer is an alloy consisting of Zn and at least one selected from the group consisting of Cu, Au, Pd, Ni, Cr, and Ti.