Oscillation prevention during testing of integrated circuit logic chips
    1.
    发明授权
    Oscillation prevention during testing of integrated circuit logic chips 失效
    集成电路逻辑芯片测试时的防振

    公开(公告)号:US4553049A

    公开(公告)日:1985-11-12

    申请号:US540072

    申请日:1983-10-07

    CPC分类号: G01R31/31924 G01R31/31905

    摘要: Integrated circuit logic chips often oscillate during testing because the large unbypassed inductance of the test fixture causes off-chip driver switching noise to be fed back to the logic chip power supply. Oscillation may be prevented by adding an inhibit receiver and an off-chip driver inhibit network to the logic chip. The off-chip driver inhibit network provides a fan out path from the inhibit receiver to each off-chip driver. In response to an inhibit signal applied to the inhibit receiver, the inhibit network forces each of the off-chip drivers to the same logical state, the logic state being the natural logic state assumed by the off-chip drivers upon initial application of power to the chip. The driver inhibit receiver and inhibit network are employed to prevent oscillation at chip power-on, during driver and receiver parametric testing and during input test pattern tests.

    摘要翻译: 集成电路逻辑芯片在测试期间经常振荡,因为测试夹具的大的非旁路电感导致芯片外驱动器开关噪声反馈到逻辑芯片电源。 可以通过向禁止接收器和片外驱动器禁止网络到逻辑芯片来防止振荡。 片外驱动器禁止网络提供从禁止接收器到每个片外驱动器的扇出路径。 响应于施加到禁止接收器的抑制信号,禁止网络迫使每个片外驱动器处于相同的逻辑状态,逻辑状态是由片外驱动器在初次施加电源时假定的自然逻辑状态 芯片。 在驱动器和接收机参数测试期间以及在输入测试模式测试期间,驱动器禁止接收器和禁止网络用于防止芯片上电时的振荡。

    Optoelectronic device and method utilizing nanometer-scale particles
    2.
    发明授权
    Optoelectronic device and method utilizing nanometer-scale particles 失效
    利用纳米级微粒的光电器件和方法

    公开(公告)号:US06441945B1

    公开(公告)日:2002-08-27

    申请号:US09629037

    申请日:2000-07-31

    IPC分类号: G02B2600

    摘要: An optoelectronic device and method utilizing nanometer-scale particles arranged along a preselected path, each particle being capable of polarization. The particles are spaced apart such that polarization of one of the particles acts to induce polarization in adjacent particles, enabling electromagnetic energy to be transferred, modulated, filtered or otherwise processed by the device. In a specific embodiment, a chain of such particles may be arranged in a configuration having a variety of different angles, sharp corners and junctions, without adversely affecting device efficiency.

    摘要翻译: 利用沿着预选路径布置的纳米级粒子的光电子器件和方法,每个粒子都能够极化。 颗粒间隔开,使得颗粒中的一个的极化用于在相邻颗粒中引起极化,使得电磁能被传输,调制,过滤或以其它方式被设备处理。 在具体实施例中,这样的颗粒链可以以具有各种不同角度,尖角和结点的构造布置,而不会不利地影响装置效率。