Modification of solder alloy compositions to suppress interfacial void formation in solder joints
    81.
    发明授权
    Modification of solder alloy compositions to suppress interfacial void formation in solder joints 有权
    焊接合金组合物的改性以抑制焊点中的界面空隙形成

    公开(公告)号:US08157158B2

    公开(公告)日:2012-04-17

    申请号:US11669076

    申请日:2007-01-30

    CPC classification number: B23K35/262 H05K3/3463 Y10T403/479 Y10T428/12708

    Abstract: A solder joint comprising a solder capture pad on a substrate having a circuit; and a lead containing or a lead free solder selected from the group comprising Sn—Ag—Cu solder, Sn—Cu solder and Sn—Ag solder adhered to the solder capture pad; the solder selected from the group comprising between 0.1 and 6.0 per cent by weight Zn. A solder joint, comprising a solder capture pad on a substrate having a circuit; and a Sn—Cu lead free solder adhered to the solder capture pad, the solder comprising between 0.1 and 6.0% by weight Zn. Formation of voids at an interface between the solder and the solder capture pad is suppressed. A method for forming solder joints using the solders.

    Abstract translation: 一种焊接接头,包括在具有电路的基板上的焊料捕获垫; 以及从包含Sn-Ag-Cu焊料,Sn-Cu焊料和Sn-Ag焊料的组中选择的含铅或无铅焊料,其粘附到焊料捕获垫上; 选自包含0.1至6.0重量%Zn的组的焊料。 一种焊接接头,包括在具有电路的基板上的焊料捕捉垫; 并且Sn-Cu无铅焊料粘附到焊料捕获垫,焊料包含0.1至6.0重量%的Zn。 阻止在焊料和焊料捕获垫之间的界面处形成空隙。 一种使用焊料形成焊点的方法。

    Compliant mold fill head with integrated cavity venting and solder cooling
    86.
    发明授权
    Compliant mold fill head with integrated cavity venting and solder cooling 有权
    具有集成腔体排气和焊锡冷却的合适的模具填充头

    公开(公告)号:US08011563B2

    公开(公告)日:2011-09-06

    申请号:US11696753

    申请日:2007-04-05

    CPC classification number: B23K3/0607 B23K2101/40

    Abstract: A mold fill head includes a solder delivery head and an interface portion having a compliant portion secured to the solder delivery head and a dispensing region associated with the compliant portion. The dispensing region is formed with at least one aperture configured to interface with cavities in a mold plate, the at least one aperture being in fluid communication with the solder delivery head. The compliant portion is configured and dimensioned to urge the dispensing region against the mold plate when held a predetermined distance therefrom and to substantially tolerate variations in flatness of the mold plate, variations in the predetermined distance, and/or variations in an angular orientation of the interface portion and the mold plate.

    Abstract translation: 模具填充头包括焊料输送头和具有固定到焊料输送头的顺应部分和与柔顺部分相关联的分配区域的界面部分。 分配区域形成有至少一个孔,其被配置为与模板中的空腔相接触,所述至少一个孔与焊料输送头流体连通。 顺应部分的构造和尺寸被设计成当从其延伸预定距离时将分配区域推靠在模板上,并且基本上容许模板的平坦度变化,预定距离的变化和/或角度取向的变化 界面部分和模板。

    Injection Molded Solder Method for Forming Solder Bumps on Substrates
    87.
    发明申请
    Injection Molded Solder Method for Forming Solder Bumps on Substrates 失效
    用于在基片上形成焊料的注射成型焊接方法

    公开(公告)号:US20110127312A1

    公开(公告)日:2011-06-02

    申请号:US13025419

    申请日:2011-02-11

    CPC classification number: B23K3/0638 B23K1/0016

    Abstract: A flexible unitary mask has a plurality of through holes. A substrate has a plurality of wettable pads in recessed regions defining volumes. The through holes are aligned with the wettable pads. Molten solder is directly injected through the through holes of the flexible unitary mask into the volumes with the wettable pads, such that the through holes and the volumes with the wettable pads are filled with solder. The solder is allowed to solidify, forming a plurality of solder structures adhered to the wettable pads. The flexible unitary mask is peeled from the substrate after the solder has solidified.

    Abstract translation: 柔性酉面具有多个通孔。 衬底在限定体积的凹陷区域中具有多个可湿性垫。 通孔与可湿性垫对齐。 熔融的焊料通过柔性整体式掩模的通孔被直接注入到具有可湿性垫的体积中,使得通孔和具有可湿性垫的体积被焊料填充。 允许焊料固化,形成粘附到可湿性垫的多个焊料结构。 焊料固化后,将柔性单位掩模从基板上剥离。

    INJECTION MOLDED SOLDER METHOD FOR FORMING SOLDER BUMPS ON SUBSTRATES
    89.
    发明申请
    INJECTION MOLDED SOLDER METHOD FOR FORMING SOLDER BUMPS ON SUBSTRATES 有权
    注射成型焊接方法用于在基材上形成焊锡

    公开(公告)号:US20100116871A1

    公开(公告)日:2010-05-13

    申请号:US12269240

    申请日:2008-11-12

    CPC classification number: B23K3/0638 B23K1/0016

    Abstract: A flexible unitary mask has a plurality of through holes. A substrate has a plurality of wettable pads in recessed regions defining volumes. The through holes are aligned with the wettable pads. Molten solder is directly injected through the through holes of the flexible unitary mask into the volumes with the wettable pads, such that the through holes and the volumes with the wettable pads are filled with solder. The solder is allowed to solidify, forming a plurality of solder structures adhered to the wettable pads. The flexible unitary mask is peeled from the substrate after the solder has solidified.

    Abstract translation: 柔性酉面具有多个通孔。 衬底在限定体积的凹陷区域中具有多个可湿性垫。 通孔与可湿性垫对齐。 熔融的焊料通过柔性整体式掩模的通孔直接注入到具有可湿性垫片的体积中,使得通孔和具有可湿性垫片的体积用焊料填充。 允许焊料固化,形成粘附到可湿性垫的多个焊料结构。 焊料固化后,将柔性单位掩模从基板上剥离。

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