Discoloration-resistant solder material and discoloration-resistant solder joint

摘要

PROBLEM TO BE SOLVED: To provide a solder material or a solder joint in which yellowing is suppressed and which has excellent wettability. Kind Code: A1 Discoloration-resistant solder material comprising Sn or an Sn-based alloy and 40 to 320 mass ppm of As, and having an As-enriched layer, wherein the Sn or Sn-based alloy is 0 to 4 Spherical sphere having a spherical diameter of 1 to 1000 μm, containing Ag by mass, 0-1 mass% Cu, 0-52 mass% In, 0-0.15 mass% Ni, 0-0.015 mass% Co. Solder material that is a powder. [Selection diagram] None