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    • 8. 发明授权
    • Lead-frame for manufacturing semiconductor devices
    • 用于制造半导体器件的引线框架
    • US5208481A
    • 1993-05-04
    • US728350
    • 1991-07-11
    • Yoshio KuritaAkira Akamatsu
    • Yoshio KuritaAkira Akamatsu
    • H01L21/48H01L23/495
    • H01L21/4842H01L23/49562H01L2924/0002
    • A leadframe facilitates the bonding of leads to semiconductor chips. The leadframe has two longitudinal bands transversely spaced from each other, and connected by bar-like segments initially non-perpendicular to the bands, and spaced longitudinally along the leadframe. The leadframe also includes leads projecting from both of the bands, the leads projecting from one band being interleaved with those projecting from the other band. When one moves the longitudinal bands relative to each other longitudinally, the leads projecting from the first band come into alignment with the leads projecting from the second band. Thus, if one has first bonded semiconductor chips to the ends of the leads projecting from the first band, then movement of the bands longitudinally makes it easy to connect the second leads to each of the semiconductor chips.
    • 引线框有助于引线与半导体芯片的接合。 引线框架具有彼此横向间隔开的两个纵向带,并且通过最初非垂直于带的条状部分连接并且沿引线框架纵向间隔开。 引线框还包括从两个带突出的引线,从一个带突出的引线与从另一个带突出的引线交错。 当纵向相对于彼此相对移动时,从第一带突出的引线与从第二带突出的引线对准。 因此,如果将第一接合的半导体芯片连接到从第一带突出的引线的端部,则纵向的带的移动使得容易将第二引线连接到每个半导体芯片。
    • 10. 发明授权
    • Flow velocity measuring device
    • 流速测量装置
    • US3948097A
    • 1976-04-06
    • US500451
    • 1974-08-26
    • Yoshio KuritaKatsumi TakahashiToshio Aga
    • Yoshio KuritaKatsumi TakahashiToshio Aga
    • G01F1/32G01P5/01
    • G01P5/01G01F1/3218
    • A flow metering apparatus of the type having a vortex generating element with a generally elongate cylindrical shape placed in a stream of flowing fluid so as to produce Karman's vortices at a rate proportional to the velocity of the flowing fluid, with means for detecting the rate of production of vortices to give a linearly related measure of fluid velocity. To improve the correspondence of vortex production rate with flow velocity over wide conditions of flow, the element is formed with a rectangular cross-section in which the depth d along the direction of flow and the height h across the direction of flow are arranged in a ratio d/h of between about 0.5 and 0.9 and preferably in a ratio of 2/3. In the vortex generating element, passageway means extend between openings in the two opposed rectangle sides which are aligned with the direction of flow. The passageway means communicate fluid fluctuations past a flow detector to measure the frequency of vortex production and thereby determine the velocity of the fluid stream. Further improvement of the correspondence of vortex production rate with flow velocity is attained by dimensioning the area A of the passageway opening in relation to the area Ao of the rectangle side containing the opening so that 0.3.ltoreq.A/Ao
    • 该类型的流量计量装置具有放置在流动流体流中的大致细长的圆柱形形状的涡流产生元件,以便以与流动流体的速度成比例的速率产生卡曼涡流,以及用于检测流速 产生涡流以给出流体速度的线性相关度量。 为了提高涡流生成速度与宽流动条件下流速的对应关系,元件形成为矩形横截面,其中沿着流动方向的深度d和跨流动方向的高度h排列成 比率d / h为约0.5至0.9,优选为2/3。 在涡流产生元件中,通道装置在与流动方向对准的两个相对的矩形侧面的开口之间延伸。 通道意味着通过流量检测器传送流体波动,以测量涡流产生的频率,从而确定流体流的速度。 通过将通道开口的面积A相对于包含开口的矩形侧的面积Ao的尺寸确定为使得0.3≤A/ Ao <1,可以进一步提高涡流生成速度与流速的对应关系。 通道开口在涡流发生元件的轴向方向上的长度l与放置元件的管子的内径D有关,使得0.5 <1 / D <1。 最后,矩形高度h与管的内径D有关,使得0.2