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    • 3. 发明授权
    • Method for enhancement of semiconductor device contact pads
    • 用于增强半导体器件接触焊盘的方法
    • US5391516A
    • 1995-02-21
    • US774427
    • 1991-10-10
    • Robert J. WojnarowskiBernard Gorowitz
    • Robert J. WojnarowskiBernard Gorowitz
    • H01L21/768H01L21/268H01L21/311H01L21/441
    • H01L21/76877H01L24/05H01L2924/12042H01L2924/14
    • Semiconductor device contact pads are enhanced by forming a metal plate over at least a portion of the contact pad. "Enhancement" includes repair such as by bridging a reinforcing pad area over probe damage, general reinforcement or enlargement of a contact pad, and placement of a protective buffer pad over a contact pad. These methods are applicable to any semiconductor device with contact pads on a surface thereof, such as entire wafers, individual dice, and multi-chip High Density Interconnect (HDI) modules. The pad enhancement plate is formed by applying a planarizing dielectric layer over the entire device (if not already formed in the initial stages of HDI processing), and an enhancement access via is then formed to expose a portion of the contact pad to be enhanced. The entire device is metallized, and metal not over the exposed portion of the contact pad is subsequently removed. Localized heating of the metal plate can be achieved by a laser to effectuate a selective pseudo-weld or produce sintering for a low resistance ohmic contact.
    • 通过在接触垫的至少一部分上形成金属板来增强半导体器件接触焊盘。 “增强”包括修复,例如通过桥接加强垫区域超过探测器损伤,通常加强或扩大接触垫,以及将保护性缓冲垫放置在接触垫上。 这些方法适用于具有其表面上的接触焊盘的任何半导体器件,例如整个晶片,单个晶片和多芯片高密度互连(HDI)模块。 通过在整个装置(如果在HDI处理的初始阶段尚未形成)中施加平坦化介电层来形成焊盘增强板,然后形成增强接入通路,以使接触焊盘的一部分暴露出增强。 整个装置被金属化,并且随后去除接触垫的暴露部分之上的金属。 可以通过激光来实现金属板的局部加热,以实现选择性伪焊接或产生用于低电阻欧姆接触的烧结。
    • 7. 发明授权
    • Demountable and repairable low pitch interconnect for stacked multichip
modules
    • 用于堆叠多芯片模块的可拆卸和可修复的低间距互连
    • US5857858A
    • 1999-01-12
    • US773625
    • 1996-12-23
    • Bernard GorowitzRobert John WojnarowskiRonald Frank Kolc
    • Bernard GorowitzRobert John WojnarowskiRonald Frank Kolc
    • H01L25/065H05K1/14H05K3/32H05K3/40H05K1/11
    • H05K3/325H01L25/0652H05K1/144H01L2924/0002H01L2924/3011H05K3/403
    • Connection elements which, for example, may be used to facilitate interconnection to and stacking of electronic assemblies or may include an elongated conductive core, such as a wire or a hollow tube structure, coated with a layer of elastomeric material containing conductive particle such that the elastomeric material is conductive at least when compressed. The substrates of multi-chip modules (MCMs) have electrical connection sites in the form of metal-lined channels in the substrate edges, and the connection elements are pressed into the channels. Separate compression or clamping elements may be employed to enhance conductivity, as well as to facilitate external connections. The elongated conductive core may take the form of a hollow tube structure which may be expanded under internal pressure to compress the layer of elastomeric material. The compression elements may take the form of printed circuit boards. In alternative embodiments the connection elements may be clamped between conductive channels of side-by-side substrates or between opposed conductive channels of stacked substrates.
    • 连接元件例如可用于促进电子组件的互连和堆叠,或者可以包括细长导电芯,例如线或中空管结构,涂覆有包含导电颗粒的弹性体材料层,使得 至少在压缩时弹性材料是导电的。 多芯片模块(MCM)的基板在基板边缘中具有金属衬里通道形式的电连接位置,并且连接元件被压入通道中。 可以使用单独的压缩或夹紧元件来增强导电性,并且便于外部连接。 细长导电芯可以采取中空管结构的形式,其可以在内部压力下膨胀以压缩弹性体材料层。 压缩元件可以采用印刷电路板的形式。 在替代实施例中,连接元件可以被夹持在并排衬底的导电沟道之间或层叠衬底的相对的导电沟道之间。