Method and apparatus for determining the location of a short in an electrical wire network
    1.
    发明授权
    Method and apparatus for determining the location of a short in an electrical wire network 失效
    用于确定电线网络中短路的位置的方法和装置

    公开(公告)号:US06651013B1

    公开(公告)日:2003-11-18

    申请号:US09714372

    申请日:2000-11-16

    IPC分类号: G01R3100

    CPC分类号: G01R31/086

    摘要: A method and apparatus for locating a short between two nets in an electrical wire network of a microelectronic structure (e.g., chip, chip carrier, circuit card, etc.). A first net and a second net of the electrical wire are electrically shorted at an unknown point PS on the first net. Points PA and PB on the first net such are selected such that PS is located on a path between PA and PB along the first net. A constant current pulse source is electrically connected between PA and PB and is activated. Voltage drops VAB (from PA to PB) and VAC (from PA to a point PC on the second net) are measured. A length LAS of the path from PA to PS is calculated as a function of VAC/VAB. Computer graphics may be used to graphically display the location of the short within the microelectronic structure.

    摘要翻译: 一种用于定位微电子结构(例如,芯片,芯片载体,电路卡等)的电线网络中的两个网之间的短路的方法和装置。 电线的第一网和第二网在第一网上的未知点PS处电短路。 选择第一网上的点PA和PB,使得PS位于沿着第一网的PA和PB之间的路径上。 恒流脉冲源电连接在PA和PB之间并被激活。 测量电压降VAB(从PA到PB)和VAC(从PA到第二网上的点PC)。 作为VAC / VAB的函数计算从PA到PS的路径的长度LAS。 计算机图形可用于在微电子结构内以图形方式显示短路的位置。

    Circuitized substrate with internal cooling structure and electrical assembly utilizing same
    7.
    发明授权
    Circuitized substrate with internal cooling structure and electrical assembly utilizing same 失效
    具有内部冷却结构的电路化基板和利用其的电气组件

    公开(公告)号:US07738249B2

    公开(公告)日:2010-06-15

    申请号:US11976468

    申请日:2007-10-25

    IPC分类号: H05K7/20

    摘要: An electrical assembly which includes a circuitized substrate including a first plurality of dielectric and electrically conductive circuit layers alternatively oriented in a stacked orientation, a thermal cooling structure bonded to one of the dielectric layers and at least one electrical component mounted on the circuitized substrate. The circuitized substrate includes a plurality of electrically conductive and thermally conductive thru-holes located therein, selected ones of the thermally conductive thru-holes thermally coupled to the electrical component(s) and extending through the first plurality of dielectric and electrically conductive circuit layers and being thermally coupled to the thermal cooling structure, each of these selected ones of thermally conductive thru-holes providing a thermal path from the electrical component to the thermal cooling structure during assembly operation. The thermal cooling structure is adapted for having cooling fluid pass there-through during operation of the assembly. A method of making the substrate is also provided.

    摘要翻译: 一种电气组件,其包括电路化衬底,其包括以层叠取向交替取向的第一多个电介质和导电电路层,结合到所述电介质层之一的热冷结构和安装在所述电路化衬底上的至少一个电气部件。 电路化衬底包括位于其中的多个导电和导热通孔,选择的导热通孔热耦合到电气部件并延伸穿过第一多个电介质和导电电路层,并且 热耦合到热冷却结构,这些选择的导热通孔中的每一个在组装操作期间提供从电气部件到热冷却结构的热路径。 热冷却结构适于在组件的操作期间使冷却流体通过。 还提供了制造基板的方法。

    Multi-functional fiber optic coupler

    公开(公告)号:US06635866B2

    公开(公告)日:2003-10-21

    申请号:US09838645

    申请日:2001-04-19

    IPC分类号: H01J502

    摘要: An optical coupler that provides for the direct mounting of integrated circuit(s). The coupler includes a two-part housing with grooves for accommodating optical fibers that are held in place when the two parts are put together. Circuitry is formed on the housing and solder balls, when heated to a liquid state and cooled (reflowed), are used to attach integrated circuit(s) onto the housing. At least one of these integrated circuit(s) is an optical die that is positioned in close proximity to the optical fibers to provide for the receipt and/or transmission of optical signals. The reflowing of the solder balls forms an electrical connection between the circuitry on the housing and the integrated circuit(s) and provides for alignment of these components. The housing is attached to a circuitized substrate using reflowed solder balls or wirebonds.