Patent ID: 8562906
Filing Date: 2013-10-22
Classification: B23K,C22C,H05K

Abstract:
1. A lead-free solder alloy comprising: 1.0 to 2.0% by mass of Ag; 0.3 to 1.0% by mass of Cu; 0.005 to 0.10% by mass of Ni; 0.0001 to 0.005% by mass of Fe; 0.005 to 0.10% by mass of Co; and a balance including Sn and unavoidable impurities, wherein a content ratio of Ni, Co, Fe is 10:3 to 7:0.02 to 2, respectively, and wherein a total content of Ni, Co and Fe is 0.0122% to 0.10% by mass.