Structure and method for making a compliant lead for a microelectronic
device
    5.
    发明授权
    Structure and method for making a compliant lead for a microelectronic device 失效
    用于制造微电子器件的柔性引线的结构和方法

    公开(公告)号:US5966592A

    公开(公告)日:1999-10-12

    申请号:US560272

    申请日:1995-11-21

    摘要: A method of treating a lead in a chip package. A conductive lead is positioned such that it extends across a gap in a dielectric substrate and is secured at either end to a first surface of the substrate. Directed energy is then applied to a desired portion of the surface of the lead within the gap. As a result of the application of energy, a surface layer of the lead is recrystallized thereby creating a fine grain, dense surface layer of lead material. Surface contaminates may be vaporized and contaminants at the grain boundaries of the recrystallized surface layers may be driven away from the grain boundaries such that a treated lead is more ductile and has better resistance to thermal cycling after the lead has been attached to a chip contact.

    摘要翻译: 一种处理芯片封装中的引线的方法。 导电引线定位成使得其延伸穿过电介质基板中的间隙,并且在任一端固定到基板的第一表面。 然后将定向能量施加到间隙内的引线表面的期望部分。 作为施加能量的结果,铅的表面层被再结晶,从而形成细晶粒,致密的铅材料表面层。 表面污染物可能被蒸发,并且再结晶表面层的晶界处的污染物可能被驱离离开晶界,使得处理的引线更具延展性,并且在引线已经附着到芯片接触之后具有更好的耐热循环性。

    Coining tool and process of manufacturing same for making connection components
    7.
    发明授权
    Coining tool and process of manufacturing same for making connection components 失效
    压印工具及制造过程制造连接部件

    公开(公告)号:US06196042B1

    公开(公告)日:2001-03-06

    申请号:US09281643

    申请日:1999-03-31

    IPC分类号: B21D2810

    CPC分类号: H01L21/4842 Y10T29/49121

    摘要: A tool having a coining projection is operative for forming a frangible portion in a lead of a microelectronic connection component by application of a compressive force. The coining projection is supported on a pedestal formed from a tool body. In an alternative embodiment, the pedestal is formed on a backing plate for use in circuits up construction. The pedestal is sized and shaped so as to be received within a gap formed in a support layer for the leads. By application of the compressive force, the coining projection will penetrate the lead within the region of the gap to form the frangible portion.

    摘要翻译: 具有压印突起的工具用于通过施加压缩力来形成微电子连接部件的引线中的易碎部分。 压印突起支撑在由工具主体形成的基座上。 在替代实施例中,基座形成在背板上用于回路结构。 基座的尺寸和形状被设计成容纳在形成在引线的支撑层中的间隙内。 通过施加压缩力,压印突起将在间隙的区域内穿透引线,以形成易碎部分。

    Bonding lead structure with enhanced encapsulation
    8.
    发明授权
    Bonding lead structure with enhanced encapsulation 失效
    结合引线结构增强封装

    公开(公告)号:US06191473B1

    公开(公告)日:2001-02-20

    申请号:US09315252

    申请日:1999-05-20

    IPC分类号: H01L2352

    摘要: A connection component for a semiconductor chip includes a support structure having a top surface including a dielectric material and a bottom surface. The support structure includes a central portion, a peripheral portion and one or more gaps extending substantially between the central portion and the peripheral portion. A bus overlies the top surface of the support structure. The each bus has an outer edge which overlies the peripheral portion of the support structure and an inner edge which overlies the one or more gaps. The support structure also includes one or more electrically conductive leads having first ends secured to the central portion and second ends overlying the gaps and being secured to the inner edge of the bus. The second ends of the leads are displaceable relative to the bus in response to bonding forces being applied to the leads for engaging contacts on a semiconductor chip.

    摘要翻译: 用于半导体芯片的连接部件包括具有包括电介质材料和底面的顶表面的支撑结构。 支撑结构包括中心部分,周边部分和基本上在中心部分和周边部分之间延伸的一个或多个间隙。 公共汽车覆盖在支撑结构的顶面上。 每个总线具有覆盖支撑结构的周边部分的外边缘和覆盖在一个或多个间隙上的内边缘。 支撑结构还包括一个或多个导电引线,其具有固定到中心部分的第一端和覆盖间隙的第二端并固定到总线的内边缘。 引线的第二端可以响应于施加到引线上的接合力而相对于母线移位,以接合半导体芯片上的触点。