Lead-free solder
    9.
    发明授权

    公开(公告)号:US11673214B2

    公开(公告)日:2023-06-13

    申请号:US17664907

    申请日:2022-05-25

    IPC分类号: B23K35/26 C22C28/00

    CPC分类号: B23K35/26 C22C28/00

    摘要: A lead-free solder contains 93.0 mass % or more and 98.95 mass % or less of indium, 1.0 mass % or more and 4.0 mass % or less of tin, and an addition metal. The addition metal contains at least one of silver, antimony, copper, or nickel. The addition metal is neither indium nor tin. The total of mass percentage of the addition metal is 0.05 mass % or more and 6.0 mass % or less. The sum of the total mass percentage of the addition metal, the mass percentage of indium, and the mass percentage of tin is 100 mass % or less.