Soldering material and electronic component assembly
    1.
    发明授权
    Soldering material and electronic component assembly 有权
    焊料和电子元器件组装

    公开(公告)号:US08598464B2

    公开(公告)日:2013-12-03

    申请号:US12999411

    申请日:2010-04-19

    IPC分类号: H05K1/16 B23K31/00 C22C13/02

    摘要: A solder material includes 1.0-4.0% by weight of Ag, 4.0-6.0% by weight of In, 0.1-1.0% by weight of Bi, 1% by weight or less (excluding 0% by weight) of a sum of one or more elements selected from the group consisting of Cu, Ni, Co, Fe and Sb, and a remainder of Sn. When a copper-containing electrode part of an electronic component is connected to a copper-containing electrode land of a substrate by using this solder material, a part having an excellent stress relaxation property can be formed in the solder-connecting part and a Cu—Sn intermetallic compound can be rapidly grown from the electrode land and the electrode part to form a strong blocking structure.

    摘要翻译: 焊料材料包括1.0-4.0重量%的Ag,4.0-6.0重量%的In,0.1-1.0重量%的Bi,1重量%以下(不包括0重量%)的1个或 选自由Cu,Ni,Co,Fe和Sb组成的组中的更多元素,以及Sn的剩余部分。 当通过使用该焊料将电子部件的含铜电极部分连接到基板的含铜电极焊盘时,可以在焊料连接部分中形成具有优异的应力松弛特性的部分, Sn金属间化合物可以从电极焊盘和电极部分快速生长,形成强阻挡结构。

    SOLDERING MATERIAL AND ELECTRONIC COMPONENT ASSEMBLY
    2.
    发明申请
    SOLDERING MATERIAL AND ELECTRONIC COMPONENT ASSEMBLY 有权
    焊接材料和电子元器件组件

    公开(公告)号:US20110120769A1

    公开(公告)日:2011-05-26

    申请号:US12999411

    申请日:2010-04-19

    IPC分类号: H01R4/00 B23K31/02

    摘要: A lead-free solder material is provided, which shows a high thermal fatigue resistance and is able to effectively reduce occurrence of connection failure that would cause a function of a product to stop.A solder material comprises 1.0-4.0% by weight of Ag, 4.0-6.0% by weight of In, 0.1-1.0% by weight of Bi, 1% by weight or less (excluding 0% by weight) of a sum of one or more elements selected from the group consisting of Cu, Ni, Co, Fe and Sb, and a remainder of Sn. When a copper-containing electrode part (3a) of an electronic component (3) is connected to a copper-containing electrode land (1a) of a substrate (1) by using this solder material, a part (5b) having an excellent stress relaxation property can be formed in the solder-connecting part and a Cu—Sn intermetallic compound (5a) can be rapidly grown from the electrode land (1a) and the electrode part (3a) to form a strong blocking structure. Thus, even in a severe temperature environment, cleavage can be prevented from generating and extending, a high thermal fatigue resistance can be attained, and occurrence of connection failure can be reduced.

    摘要翻译: 提供了一种无铅焊料,其显示出高耐热疲劳性,并且能够有效地减少导致产品功能停止的连接故障的发生。 焊料材料包含1.0-4.0重量%的Ag,4.0-6.0重量%的In,0.1-1.0重量%的Bi,1重量%以下(不包括0重量%)的1个或 选自由Cu,Ni,Co,Fe和Sb组成的组中的更多元素,以及Sn的剩余部分。 当使用该焊料将电子部件(3)的含铜电极部(3a)与基板(1)的含铜电极焊盘(1a)连接时,具有优异应力的部分(5b) 可以在焊料连接部中形成松弛性,并且可以从电极接合区(1a)和电极部(3a)迅速地生长Cu-Sn金属间化合物(5a),形成强阻挡结构。 因此,即使在严酷的温度环境下,也可以防止产生和延伸的裂纹,可以获得高耐热疲劳性,并且可以降低连接故障的发生。