LEAD-FREE SOLDER ALLOY, FATIGUE RESISTANT SOLDERING MATERIALS CONTAINING THE SOLDER ALLOY, AND JOINED PRODUCTS USING THE SOLDERING MATERIALS
    5.
    发明申请
    LEAD-FREE SOLDER ALLOY, FATIGUE RESISTANT SOLDERING MATERIALS CONTAINING THE SOLDER ALLOY, AND JOINED PRODUCTS USING THE SOLDERING MATERIALS 审中-公开
    无铅焊接合金,含有焊料合金的耐疲劳耐火材料和使用焊接材料加工的产品

    公开(公告)号:US20110274937A1

    公开(公告)日:2011-11-10

    申请号:US13145163

    申请日:2010-01-18

    IPC分类号: B32B15/04 B23K35/34 C22C13/00

    摘要: [PROBLEMS TO BE SOLVED] To provide a low-silver lead-free solder alloy having an excellent wettability and being excellent in heat-fatigue resistance, and a solder-paste soldering material and resin-flux cored soldering material being excellent in fatigue resistance, and a joined product by using the soldering material.[MEANS FOR SOLVING] 0.1 to 1.5% by weight of Cu, 0.01% by weight or more and less than 0.05% by weight of Co, 0.05 to 0.25% by weight of Ag, 0.001 to 0.008% by weight of Ge, and the remainder being Sn. This low silver lead-free solder alloy is blended with a pasty flux or molded in a liner form by using a solid or pasty flux as a core.[SELECTED FIGURE] FIG. 2

    摘要翻译: [待解决的问题]为了提供耐湿性优异且耐热疲劳性优异的低银无铅焊料合金,耐疲劳性优异的焊锡膏焊料和树脂焊剂芯焊料, 以及通过使用焊接材料的接合产品。 [用于溶解] 0.1〜1.5重量%的Cu,0.01重量%以上且小于0.05重量%的Co,0.05〜0.25重量%的Ag,0.001〜0.008重量%的Ge, 余数为Sn。 这种低银无铅焊料合金与糊状焊剂混合,或者通过使用固体或糊状焊剂作为核心以衬垫形式模制。 [选择的图] 2

    LEAD-FREE SOLDER ALLOY
    6.
    发明申请
    LEAD-FREE SOLDER ALLOY 审中-公开
    无铅焊接合金

    公开(公告)号:US20100233018A1

    公开(公告)日:2010-09-16

    申请号:US12305794

    申请日:2007-07-20

    IPC分类号: B23K35/24 C22C13/02

    CPC分类号: C22C13/00 B23K35/262

    摘要: Provided is an SnCu lead-free solder alloy which eliminates a drawback that an intermetallic compound excessively precipitates and the precipitate serves as nuclei to form dross to thereby cause soldering defects including a needle-like protrusion to occur, thus to satisfy all of the properties required for practical use.A lead-free solder alloy contains 0.1 to 1.5% by weight of Cu, not less than 0.01 and less than 0.05% by weight of Co, 0.05 to 0.5% by weight of Ag and 0.01 to 0.1% by weight of Sb, the remainder being Sn, or further contains 0.001 to 0.008% by weight of Ge, whereby the formation of dross is prevented, and thus the drawback that soldering defects including a needle-like protrusion occur is eliminated.

    摘要翻译: 提供了一种SnCu无铅焊料合金,其消除了金属间化合物过度沉淀的缺点,并且沉淀物用作形成浮渣的核,从而引起包括针状突起的焊接缺陷,从而满足所有所需的所有性能 供实际使用。 无铅焊料合金含有0.1〜1.5重量%的Cu,不小于0.01重量%,小于0.05重量%的Co,0.05〜0.5重量%的Ag和0.01〜0.1重量%的Sb,余量 为Sn,或进一步含有0.001〜0.008重量%的Ge,由此防止浮渣的形成,因此消除了包括针状突起发生的焊接缺陷的缺点。