Pb-FREE Sn-BASED MATERIAL, AND CONDUCTOR FOR ELECTRIC WIRING, TERMINAL-CONNECTING SECTION AND Pb-FREE SOLDER ALLOY

摘要

PPROBLEM TO BE SOLVED: To provide a Pb-free Sn-based material which hardly forms whiskers on the surface of the Pb-free Sn-based material part: a conductor for electric wiring; a terminal-connecting section; and a Pb-free solder alloy. PSOLUTION: The conductor for electric wiring has the Pb-free Sn-based material part at least in one part of the surface, and is manufactured by using a base metal for the Sn-based material part, which includes at least one element selected from Sb, Bi, Cd, In, Ag, Au, Ni, Ti, Zr and Hf as a transformation-delaying element, and at least one element selected from Ge, P, Zn, K, Cr, Mn, Na, V, Si, Al, Li, Mg and Ca as an oxidization-inhibiting element respectively, and subjecting it to reflow treatment. PCOPYRIGHT: (C)2008,JPO&INPIT