Semiconductor device
    6.
    发明授权
    Semiconductor device 失效
    半导体器件

    公开(公告)号:US4965656A

    公开(公告)日:1990-10-23

    申请号:US314246

    申请日:1989-02-21

    摘要: This invention provides a semiconductor device having an electrode conductor layer on a semiconductor substrate through the medium of a diffusion barrier layer, comprising the diffusion barrier layer formed of an amorphous material having a higher crystallization temperature than the heat treatment temperature for the semiconductor device. According to this invention, the reaction between the metal conductor and the semiconductor substrate and the diffusion of the conductor material into the semiconductor substrate can be prevented and resultantly a semiconductor device having a high thermal reliability can be obtained.

    摘要翻译: 本发明提供了一种通过扩散阻挡层的介质在半导体衬底上具有电极导体层的半导体器件,该半导体器件包括由具有比半导体器件的热处理温度更高的结晶温度的非晶材料形成的扩散阻挡层。 根据本发明,可以防止金属导体与半导体衬底之间的反应以及导体材料向半导体衬底的扩散,从而可获得具有高热可靠性的半导体器件。

    Drill rod, drill bit, and drilling tool
    9.
    发明授权
    Drill rod, drill bit, and drilling tool 有权
    钻杆,钻头和钻具

    公开(公告)号:US07942216B2

    公开(公告)日:2011-05-17

    申请号:US12092134

    申请日:2006-11-21

    IPC分类号: E21B17/042 E21B17/04

    CPC分类号: E21B10/36 E21B17/042

    摘要: A drill rod has a fitting portion protruding toward the distal end of the drill rod. The drill rod fitting portion further encompasses a parallel male thread portion in which a minimum distance from a first axial line in a cross-section perpendicular to the first axial line is constant; and a male thread ending portion is continuous with a proximal end of the parallel male thread portion. The minimum distance of the ending portion increases as a proximal end is approached. Furthermore, the fitting portion is formed such that the minimum distance does not decrease as the proximal end is approached from a distal end thereof. Additionally, the proximal end of the male thread ending portion is positioned where a distance from the first axial line gradually increases as the proximal end of the male thread ending portion is approached from the parallel male thread.

    摘要翻译: 钻杆具有朝向钻杆的远端突出的配合部分。 钻杆配合部分还包括平行的阳螺纹部分,其中垂直于第一轴线的横截面中的第一轴线的最小距离是恒定的; 并且阳螺纹结束部分与平行阳螺纹部分的近端连续。 当接近近端时,终端部分的最小距离增加。 此外,装配部分形成为使得最小距离不会随着近端从其远端接近而减小。 此外,当阳螺纹结束部分的近端从平行的外螺纹接近时,阳螺纹端部的近端位于与第一轴线的距离逐渐增加的位置。