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5 条记录 (耗时 0.052 秒)

    Stable ohmic contacts to thin films of p-type tellurium-containing II-VI semiconductors
    4.
    发明授权
    Stable ohmic contacts to thin films of p-type tellurium-containing II-VI semiconductors 失效
    与含p型碲的II-VI半导体薄膜稳定的欧姆接触

    公开(公告)号：US4735662A

    公开(公告)日：1988-04-05

    申请号：US714

    申请日：1987-01-06

    申请人： Louis F. Szabo ,  William J. Biter

    发明人： Louis F. Szabo ,  William J. Biter

    IPC分类号： G06F9/455 ,  G06F9/34 ,  G06F9/44 ,  H01L21/28 ,  H01L21/443 ,  H01L31/0224 ,  H01L31/073 ,  H01L31/10 ,  H01L31/06

    CPC分类号： G06F8/31 ,  H01L21/443 ,  H01L31/022425 ,  H01L31/073 ,  Y02E10/543 ,  Y02P70/521

    摘要： A stable ohmic contact for thin films of p-type tellurium-containing II-VI semiconductors and photovoltaic devices incorporating such contacts. An ohmic contact according to the invention includes a contact-forming layer deposited on a p-type thin film of a tellurium-contacting II-VI semiconductor. Preferably, the contact-forming layer is copper having a thickness of about 2 nanometers. An isolation layer is deposited on the contact-forming to isolate subsequently deposited layers from the thin film. The isolation layer may be carbon or a thin layer of nickel. A connection layer for attaching an external electrical conductor is deposited on the isolation layer. The connection layer may be aluminum, chromium or a layer of copper, provided a copper layer is covered with one of silver, aluminum or a thin layer of nickel, preferably covered with aluminum. The stable, ohmic contact may be used as a back contact in a photovoltaic device incorporating a thin film of a tellurium-containing II-VI semiconductor as one of the active semiconductor layers in the device.

    Lap splice width monitor
    5.
    发明授权
    Lap splice width monitor 失效
    搭接接头宽度监视器

    公开(公告)号：US5271284A

    公开(公告)日：1993-12-21

    申请号：US772991

    申请日：1991-10-08

    申请人： Donald O. Still ,  James E. Mathis ,  Louis F. Szabo

    发明人： Donald O. Still ,  James E. Mathis ,  Louis F. Szabo

    IPC分类号： G01B21/02 ,  G01B11/04 ,  G01B21/06

    CPC分类号： G01B11/046 ,  G01B21/06

    摘要： A body ply splice width monitor is provided to sense the leading and trailing edges of a lateral splice in a web of tire body ply material and to produce an indication upon a monitor as to whether such splice satisfies certain dimensional criteria. A first pair of sensors is maintained along one edge of the web, while a second pair of sensors is maintained along the opposite edge. An encoder tracks the movement of the web through the array of sensors and provides output pulses corresponding to finite dimensional lengths of the web. The number of pulses between the sensed leading edge and sensed trailing edge of the splice is used to indicate and determine the total splice width.