Method for fabricating a switch structure
    5.
    发明授权
    Method for fabricating a switch structure 有权
    开关结构的制造方法

    公开(公告)号:US06655011B1

    公开(公告)日:2003-12-02

    申请号:US09677718

    申请日:2000-10-02

    IPC分类号: H01H1100

    摘要: A switch structure having a base surface; a first high density interconnect (HDI) plastic interconnect layer overlying the base surface layer; a cavity within the HDI plastic interconnect layer; at least one patterned shape memory alloy (SMA) layer overlying the HDI plastic interconnect layer and the cavity, and at least one patterned conductive layer over the at least one patterned SMA layer; a fixed contact pad within the cavity and attached to the base surface and a movable contact pad attached to a portion of the first patterned SMA layer within the cavity such that when the first and second patterned SMA layers and the first and second patterned metallized layers are in a first stable position, the movable contact pad touches the fixed contact pad, thereby providing an electrical connection and forming a closed switch. The structure has a second stable position in which the SMA and metallized layers are flexed away from the cavity so that the contact pads are not in contact and form an open switch.

    摘要翻译: 具有基面的开关结构; 覆盖基底表面层的第一高密度互连(HDI)塑料互连层; HDI塑料互连层内的空腔; 覆盖HDI塑料互连层和空腔的至少一个图案形状记忆合金(SMA)层,以及至少一个图案化的SMA层上的至少一个图案化导电层; 空腔内的固定接触焊盘并附接到基体表面,以及可移动接触垫,其附接到空腔内的第一图案化SMA层的一部分,使得当第一和第二图案化SMA层和第一和第二图案化金属化层为 在第一稳定位置,可动接触垫接触固定接触垫,由此提供电连接并形成闭合的开关。 该结构具有第二稳定位置,其中SMA和金属化层从空腔弯曲,使得接触焊盘不接触并形成开放的开关。

    Electromagnetic system for railroad track crack detection and traction enhancement
    6.
    发明授权
    Electromagnetic system for railroad track crack detection and traction enhancement 失效
    铁路轨道裂纹检测和牵引力增强电磁系统

    公开(公告)号:US06262573B1

    公开(公告)日:2001-07-17

    申请号:US09397839

    申请日:1999-09-17

    IPC分类号: B61K910

    摘要: An electromagnetic system for detecting cracked rail and enhancing traction when necessary, includes wiring coils around wheel axles, and a corresponding power source for supplying power to the coils for producing electromagnetic flux. The produced electromagnetic flux is routed through the wheel axles, wheels and rails in a closed circuit. When a cracked rail is encountered along the route, the circuit will be interrupted or open, resulting in a changed flux pattern. This pattern change is detected by a flux sensor, and the geographic location of the crack in the rail is determined. The electromagnetic system further includes an electromagnetic wheel loading means for generating an attraction to the rails. The generated attraction to the rails increases friction between the wheels and the rails, thereby increasing traction to enable hauling greater loads up steep grades.

    摘要翻译: 一种用于检测裂纹轨道并在必要时增强牵引力的电磁系统包括轮轴周围的线圈线圈和用于向线圈供电以产生电磁通量的相应电源。 所产生的电磁通量在闭合回路中通过轮轴,轮子和轨道。 沿着路线遇到破裂的轨道时,电路将被中断或打开,导致通量变化曲线的变化。 这种模式变化由通量传感器检测,并确定轨道中裂纹的地理位置。 电磁系统还包括用于产生对轨道的吸引力的电磁轮加载装置。 所产生的对轨道的吸引力增加了车轮和轨道之间的摩擦,从而增加了牵引力,从而能够将更大的载荷牵引到陡坡上。

    Switching structure and method of fabrication
    7.
    发明授权
    Switching structure and method of fabrication 有权
    开关结构和制造方法

    公开(公告)号:US06188301B1

    公开(公告)日:2001-02-13

    申请号:US09192103

    申请日:1998-11-13

    IPC分类号: H01P110

    摘要: A switch structure having a base surface; a first high density interconnect (HDI) plastic interconnect layer overlying the base surface layer; a cavity within the HDI plastic interconnect layer; at least one patterned shape memory alloy (SMA) layer overlying the HDI plastic interconnect layer and the cavity, and at least one patterned conductive layer over the at least one patterned SMA layer; a fixed contact pad within the cavity and attached to the base surface and a movable contact pad attached to a portion of the first patterned SMA layer within the cavity such that when the first and second patterned SMA layers and the first and second patterned metallized layers are in a first stable position, the movable contact pad touches the fixed contact pad, thereby providing an electrical connection and forming a closed switch. The structure has a second stable position in which the SMA and metallized layers are flexed away from the cavity so that the contact pads are not in contact and form an open switch.

    摘要翻译: 具有基面的开关结构; 覆盖基底表面层的第一高密度互连(HDI)塑料互连层; HDI塑料互连层内的空腔; 覆盖HDI塑料互连层和空腔的至少一个图案形状记忆合金(SMA)层,以及至少一个图案化的SMA层上的至少一个图案化导电层; 空腔内的固定接触焊盘并附接到基体表面,以及可移动接触垫,其附接到空腔内的第一图案化SMA层的一部分,使得当第一和第二图案化SMA层和第一和第二图案化金属化层为 在第一稳定位置,可动接触垫接触固定接触垫,由此提供电连接并形成闭合的开关。 该结构具有第二稳定位置,其中SMA和金属化层从空腔弯曲,使得接触焊盘不接触并形成开放的开关。

    Method of making devices for solid state thermal transfer and power generation
    8.
    发明授权
    Method of making devices for solid state thermal transfer and power generation 有权
    制造固态热转印和发电装置的方法

    公开(公告)号:US07572973B2

    公开(公告)日:2009-08-11

    申请号:US12328788

    申请日:2008-12-05

    IPC分类号: H01L35/34 H02N10/00

    CPC分类号: H01L35/32 Y10T156/1092

    摘要: A method of making a solid state thermal transfer device includes first and second electrically conductive substrates that are positioned opposite from one another. The solid state thermal transfer device also includes a sealing layer disposed between the first and second electrically conductive substrates and a plurality of hollow structures having a conductive material, wherein the plurality of hollow structures is contained by the sealing layer between the first and second electrically conductive substrates.

    摘要翻译: 制造固态热转印装置的方法包括彼此相对定位的第一和第二导电基板。 固态热转移装置还包括设置在第一和第二导电基板之间的密封层和具有导电材料的多个中空结构,其中多个中空结构由第一和第二导电 底物。

    Silicon carbide large area device fabrication apparatus and method
    10.
    发明授权
    Silicon carbide large area device fabrication apparatus and method 失效
    碳化硅大面积器件制造装置及方法

    公开(公告)号:US06410356B1

    公开(公告)日:2002-06-25

    申请号:US09520751

    申请日:2000-03-07

    IPC分类号: H01L2166

    摘要: A method for interconnecting high-temperature silicon carbide (SiC) devices enables such high-temperature devices to be used in fabricating electronic circuits of significant scale. This method comprises empirically measuring operational characteristics of a plurality of the devices to be interconnected, the operational characteristics comprising devices which are measured to be non-working and devices which are measured to be working; characterizing the operational characteristics in an operational characteristics map; designing interconnection paths between and among the devices that are characterized to be working by the operational characteristics map; and excluding from the interconnection paths, devices that are characterized to be non-working by the operational characteristics map. A preferred embodiment of this method further includes disposing a temporary polymer layer over the devices; forming via holes through the temporary polymer layer, to bonding pads of the devices; applying a current-balancing resistive metal over the temporary polymer layer; establishing connections between the current-balancing resistive metal and the bonding pads; designing the interconnection paths between and among the working devices by patterning the current-balancing resistive metal based on the operational characteristics map; and removing the temporary polymer layer.

    摘要翻译: 用于互连高温碳化硅(SiC)器件的方法使得这种高温器件能够用于制造具有显着规模的电子电路。 该方法包括经验地测量待互连的多个设备的操作特性,操作特性包括被测量为不工作的设备和被测量为工作的设备; 表征操作特征图中的操作特性; 设计特征在于通过操作特征图工作的设备之间的互连路径; 并且从互连路径中排除特征在于通过操作特性图不工作的设备。 该方法的优选实施例还包括在器件上设置临时聚合物层; 通过所述临时聚合物层形成通孔到所述装置的焊盘; 在临时聚合物层上施加电流平衡电阻金属; 建立电流平衡电阻金属和焊盘之间的连接; 通过基于操作特性图构图电流平衡电阻金属来设计工作装置之间和之间的互连路径; 并除去临时聚合物层。