Light-emitting diode
    2.
    发明授权
    Light-emitting diode 失效
    发光二极管

    公开(公告)号:US4975752A

    公开(公告)日:1990-12-04

    申请号:US250849

    申请日:1988-09-28

    CPC分类号: H01L33/24 H01L33/0062

    摘要: An LED includes a semiconductor substrate, a first blocking layer formed on this semiconductor substrate, a second blocking layer formed on this first blocking layer, a first V-channel extending from the second blocking layer to the semiconductor substrate, and a stripe-geometry light-emitting region formed in the first V-channel. Light is emitted from the LED from one edge of the light-emitting region due to a flow of current in the light-emitting region, to which the current is confined by the blocking layers. The LED also comprises a second V-channel disposed at a certain distance from the other edge of the light-emitting region, on the optical path of the light emitted from this other edge, and an absorbing region is formed in the second V-channel. This absorbing region absorbs the light emitted from the other edge of the light-emitting region. The LED has excellent characteristics in which a stable output of spontaneously-emitted light can be obtained under a wide variety of operating conditions.

    SEMICONDUCTOR APPARATUS
    4.
    发明申请

    公开(公告)号:US20090135575A1

    公开(公告)日:2009-05-28

    申请号:US12277905

    申请日:2008-11-25

    IPC分类号: H05K1/11

    摘要: A semiconductor apparatus includes: first electronic components; a first circuit board, including first electronic component mounting pads on which the first electronic components are mounted; and a second circuit board located above the first circuit board, wherein the first electronic component mounting pads are arranged on a first face of the first circuit board, opposite the second circuit board, and the first circuit board and the second circuit board are electrically connected by internal connection terminals located between the first circuit board and the second circuit board, and wherein a recessed portion is formed in the second circuit board, opposite the first electronic components, in order to provide space to accommodate portions of the first electronic components.

    摘要翻译: 一种半导体装置,包括:第一电子部件; 第一电路板,包括安装有第一电子部件的第一电子部件安装焊盘; 以及位于所述第一电路板上方的第二电路板,其中所述第一电子部件安装焊盘布置在所述第一电路板的与所述第二电路板相对的第一面上,并且所述第一电路板和所述第二电路板电连接 通过位于第一电路板和第二电路板之间的内部连接端子,并且其中在第二电路板中形成与第一电子部件相对的凹部,以便提供适应第一电子部件的部分的空间。

    Laser diode
    10.
    发明授权
    Laser diode 失效
    激光二极管

    公开(公告)号:US5048039A

    公开(公告)日:1991-09-10

    申请号:US500186

    申请日:1990-03-26

    IPC分类号: H01S5/00 H01S5/12

    CPC分类号: H01S5/1228

    摘要: A laser diode comprises a substrate, a first blocking layer having a groove, an alternate combination of a lower cladding layer and a second blocking layer, an active layer formed in the groove, and an upper cladding layer. A light-amplifying region and a light-absorbing region are formed alternately in the waveguide. Both regions are disposed periodically at a period corresponding to bragg wavelength.