Method for making a flexible lead for a microelectronic device
    6.
    发明授权
    Method for making a flexible lead for a microelectronic device 失效
    制造微电子器件柔性引线的方法

    公开(公告)号:US5597470A

    公开(公告)日:1997-01-28

    申请号:US491809

    申请日:1995-06-18

    摘要: A method for providing a flexible lead for a microelectronic device. A lead such as nickel or a nickel alloy is provided in elongated strips on a base material such as copper, which in turn overlies a dielectric sheet. The base material is etched from beneath bond regions of the lead material strips and a cover layer of a bondable material such as gold selectively provided around the lead material strips. The lead material strips act as plating mandrels, and allow rapid deposition of the cover material. A detachment area may be provided in each lead so that the leads may be detached and displaced within a bonding window in the dielectric sheet for attachment to chip contacts.

    摘要翻译: 一种用于为微电子器件提供柔性引线的方法。 诸如镍或镍合金的引线设置在诸如铜的基底材料上的细长条中,其又覆盖在电介质片上。 从铅材料条的接合区下方蚀刻基材,并且可以选择性地设置在引线材料带周围的诸如金的可结合材料的覆盖层。 铅材料条作为电镀心轴,并允许覆盖材料的快速沉积。 可以在每个引线中设置分离区域,使得引线可以在电介质片中的接合窗口内分离和移位以附接到芯片触点。