Ceramic probe card and method for reducing leakage current
    4.
    发明授权
    Ceramic probe card and method for reducing leakage current 失效
    陶瓷探针卡和减少漏电流的方法

    公开(公告)号:US5532608A

    公开(公告)日:1996-07-02

    申请号:US417623

    申请日:1995-04-06

    CPC分类号: G01R1/07307

    摘要: An electrical probe card for parametric testing of microelectronics having reduced leakage current, includes a hydrophobic layer of a self curing silicone material coating the entire exposed surface of the ceramic card between exposed conductors. The hydrophobic layer has a thickness of less than 1 micrometer, preferably less than 0.1 micrometer and most preferably between 0.01 and 0.001 micrometers. The hydrophobic layer does not interfere with subsequent soldering to the contacts on the card, is inexpensive, solvent resistant and easily applied to new and pre-existing probe cards. The method of application involves applying an excess of the hydrophobic silicone material in its uncured state, followed by vigorously wiping excess material off to thin the layer, produce a good bond and clean the exposed conductors on the probe card.

    摘要翻译: 用于具有减小的漏电流的微电子学参数测试的电探针卡包括在裸露导体之间涂覆陶瓷卡的整个暴露表面的自固化硅氧烷材料的疏水层。 疏水层的厚度小于1微米,优选小于0.1微米,最优选为0.01至0.001微米。 疏水层不会干扰随后焊接到卡上的触点,价格低廉,耐溶剂性,并且易于应用于新的和预先存在的探针卡。 施用方法包括将过量的疏水性硅氧烷材料应用于其未固化状态,然后剧烈擦拭多余的材料以使层变薄,产生良好的粘结并清洁探针卡上的暴露的导体。

    One-way winch brake
    5.
    发明授权
    One-way winch brake 失效
    单向绞车制动器

    公开(公告)号:US5398923A

    公开(公告)日:1995-03-21

    申请号:US58294

    申请日:1993-05-06

    摘要: A power operated drive shaft and brake assembly are coaxially mounted for rotation inside a cable drum which is coupled to the drive shaft through gearing. The brake assembly has an adapter housing and one-way clutch for drivingly connecting the drive shaft and adapter housing during a "cable out" operation. A plurality of brake pads are mounted for movement relative to the brake adapter housing. The brake pads are angularly offset in a non-radial orientation to negate undesired brake drag caused by centrifugal forces while the pads are spring loaded to provide a predetermined braking force to hold a load in place after completion of a winching operation.

    摘要翻译: 动力驱动的驱动轴和制动器组件同轴地安装用于在电缆鼓内旋转,电缆鼓通过齿轮联接到驱动轴。 制动器组件具有适配器壳体和单向离合器,用于在“电缆输出”操作期间驱动地连接驱动轴和适配器壳体。 安装多个制动衬块以相对于制动适配器壳体移动。 制动衬块以非径向方向成角度地偏移,以消除由离心力引起的不期望的制动阻力,同时垫被弹簧加载以提供预定的制动力,以在完成绞车操作之后将负载保持在适当位置。

    Gas-loaded pressure diaphragm
    6.
    发明授权
    Gas-loaded pressure diaphragm 失效
    加气压力隔膜

    公开(公告)号:US4684339A

    公开(公告)日:1987-08-04

    申请号:US873906

    申请日:1986-06-13

    CPC分类号: B30B1/003 Y10S425/11

    摘要: A gas-loaded diaphragm for exerting a predetermined pressure on a ceramic substrate during sintering to prevent x-y shrinkage. In the most preferred embodiment, the diaphragm comprises a gas-filled base composed of two opposing discs, and a substantially hollow gas-filled toroid container disposed around the perimeter of the opposing discs and communicating therewith to permit gas flow therebetween. This diaphragm is disposed in relation to a ceramic substrate-containing cell so that when it is heated to a desired temperature, the gas in the diaphragm expands and forces the two opposing discs apart to thereby exert a predetermined pressure on the ceramic substrate-containing cell.

    摘要翻译: 一种用于在烧结过程中在陶瓷衬底上施加预定压力以防止x-y收缩的气体隔膜。 在最优选的实施例中,隔膜包括由两个相对的盘组成的充气基座,以及设置在相对盘的周边周围并与其连通以允许气体在其间流动的基本上中空的气体填充的环形容器。 该隔膜相对于含陶瓷基板的电池设置,使得当其被加热到期望的温度时,隔膜中的气体膨胀并且迫使两个相对的盘分开,从而在含陶瓷衬底的电池上施加预定压力 。

    Metal buckling beam probe
    10.
    发明授权
    Metal buckling beam probe 失效
    金属弯曲光束探头

    公开(公告)号:US06404211B2

    公开(公告)日:2002-06-11

    申请号:US09248733

    申请日:1999-02-11

    IPC分类号: G01R3102

    CPC分类号: G01R1/07357

    摘要: A buckling beam probe assembly and a process to make the assembly using insulated metal to hold the vertical beam probe wires. The buckling beam probe assembly electrically connects a test apparatus with contact pads on the surface of a device to be tested. The assembly is formed with a plurality of buckling beam wires each having a head, a body, and a tail. Each of the beam wires is pressed vertically onto the contact pads and buckles laterally to adapt to height differences of the contact pads caused by irregularities on the surface of the device to be tested. A top plate has a first plurality of apertures receiving the heads of the plurality of buckling beam wires. A bottom plate has a second plurality of apertures receiving the tails of the plurality of buckling beams wires. A plurality of intermediate metal sections are positioned between the top plate and the bottom plate. Each of the intermediate metal sections is formed with a plurality of thin metal layers and has a plurality of openings coated with an insulation layer. The bodies of the plurality of buckling beam wires pass through the openings.

    摘要翻译: 屈曲梁探头组件和使用绝缘金属组装以保持垂直梁探针线的工艺。 屈曲梁探针组件将测试装置与待测试装置的表面上的接触垫电连接。 组件形成有多个屈曲束线,每个弯曲束线具有头部,主体和尾部。 每根光束线被垂直地按压到接触垫上并且侧向弯曲,以适应由待测试装置的表面上的不规则引起的接触垫的高度差。 顶板具有容纳多个屈曲束线的头部的第一多个孔。 底板具有接收多个弯曲梁线的尾部的第二多个孔。 多个中间金属部分位于顶板和底板之间。 每个中间金属部分形成有多个薄金属层,并且具有涂覆有绝缘层的多个开口。 多个屈曲束线的主体穿过开口。