Semiconductor device having flip chip bonding pads matched with pin
photodiodes in a symmetrical layout configuration
    51.
    发明授权

    公开(公告)号:US5252852A

    公开(公告)日:1993-10-12

    申请号:US989877

    申请日:1992-12-11

    摘要: As semiconductor device includes a substrate and first and second semiconductor light receiving elements which are spaced apart and monolithically integrated on the substrate. The light receiving elements each has first and second terminals. A first flip-chip bonding pad is formed on the surface of the device and the device includes a first conductor element which electrically interconnects the first terminals of the elements in series and includes a centrally disposed portion that is electrically connected to the first flip-chip bonding pad. Second and third flip-chip bonding pads are also formed on a surface of the device and elongated electrodes are provided for electrically interconnecting the second terminal of the first light receiving element with the second flip-chip bonding pad and the second terminal of the second light receiving element with the third flip-chip bonding pad. The elongated electrodes have essentially the same length so as to stabilize the optical and electrical balance characteristics of the device and provide a satisfactory dual balance optical receiver.

    摘要翻译: 由于半导体器件包括衬底和间隔开并且整体地集成在衬底上的第一和第二半导体光接收元件。 光接收元件各自具有第一和第二端子。 第一倒装芯片焊盘形成在器件的表面上,器件包括第一导体元件,其将元件的第一端子串联连接并且包括电中连接到第一倒装芯片的中心设置部分 接合垫。 第二和第三倒装芯片接合焊盘也形成在器件的表面上,并且提供细长电极用于将第一光接收元件的第二端子与第二倒装芯片接合焊盘和第二端子的第二端子电互连 接收元件与第三倒装芯片接合焊盘。 细长电极具有基本上相同的长度,以便稳定器件的光学和电气平衡特性并提供令人满意的双重平衡光学接收器。

    Quantum device output switch
    52.
    发明授权
    Quantum device output switch 失效
    量子设备输出开关

    公开(公告)号:US4581621A

    公开(公告)日:1986-04-08

    申请号:US626806

    申请日:1984-07-02

    申请人: Mark A. Reed

    发明人: Mark A. Reed

    摘要: Quantum-coupled devices, wherein at least two closely adjacent potential wells, (e.g. islands of GaAs in an AlGaAs lattice) are made small enough that the energy levels of carriers within the wells are discretely quantized. This means that, when the bias between the wells is adjusted to align energy levels of the two wells, tunneling will occur very rapidly, whereas when energy levels are not aligned, tunneling will be greatly reduced. To provide output coupling from these quantum-well devices to macroscopic currents, the output from the quantum-well devices is injected into localized states close to an extremely small metal line (e.g. 200 Angstroms square in section). These trapped charged perturb the resistance of a metal line significantly, so that a conventional sense amplifier can be used for differential sensing between two such narrow metal lines, to provide macroscopic outputs.

    摘要翻译: 其中至少两个紧密相邻的势阱(例如AlGaAs晶格中的GaAs的岛)被制成足够小的量子耦合器件,使得阱内的载流子能级离散量化。 这意味着当孔之间的偏置被调整以对准两个井的能量水平时,隧穿将非常快速地发生,而当能级不对齐时,隧道效应将大大降低。 为了提供从这些量子阱器件到宏观电流的输出耦合,来自量子阱器件的输出被注入接近非常小的金属线(例如截面为200埃的正方形)的局部状态。 这些被捕获的电荷显着扰乱了金属线的电阻,使得常规的读出放大器可以用于两个这样的窄金属线之间的差分感测,以提供宏观的输出。

    Electrode for lead-salt diodes
    53.
    发明授权
    Electrode for lead-salt diodes 失效
    铅盐二极管电极

    公开(公告)号:US4350990A

    公开(公告)日:1982-09-21

    申请号:US150248

    申请日:1980-05-16

    申请人: Wayne Lo

    发明人: Wayne Lo

    摘要: A significantly more stable ohmic contact for a lead-salt semiconductor surface, especially for use in infrared lasers. The contact has layers of platinum, palladium or nickel alternating with gold, and then covered with indium. An Au-Pd-Au-In contact is used on lead-sulfide-selenide, lead-tin-selenide, and lead-tin-telluride of high tin content. A Pt-Au-Pt-Sn contact is preferred for lead-tin-telluride of low tin content. Lower contact resistance is attained if P type lead-tin-selenide and lead-tin-telluride surfaces are previously doped with oxygen, and the initial metal layer is applied in a manner that does not remove it.

    摘要翻译: 用于铅 - 盐半导体表面的显着更稳定的欧姆接触,特别是用于红外激光器。 接触层有铂,钯或镍层与金交替,然后用铟覆盖。 Au-Pd-Au-In接触用于硫化铅 - 硒化铅,锡 - 硒化锡和高锡含量的铅 - 锡 - 碲化物。 对于低锡含量的铅锡碲化物,优选Pt-Au-Pt-Sn接触。 如果P型铅锡 - 硒化物和铅 - 锡 - 碲化物表面预先掺杂氧,则获得较低的接触电阻,并且以不除去初始金属层的方式施加初始金属层。