Special contact points for accessing internal circuitry of an integrated circuit
    81.
    发明授权
    Special contact points for accessing internal circuitry of an integrated circuit 失效
    用于访问集成电路内部电路的特殊接点

    公开(公告)号:US06597187B2

    公开(公告)日:2003-07-22

    申请号:US09752902

    申请日:2000-12-29

    Abstract: An integrated circuit that includes bond pads and special contact pads or points. The bond pads are for interfacing the integrated circuit as a whole with an external circuit, and are to be bonded to a package or circuit board. The bond pads are disposed on the die in a predetermined alignment such as a peripheral, grid, or lead-on-center alignment. The special contact pads are used to provide external test patterns to internal circuits and/or to externally monitor results from testing the internal circuits. The special contact pads may be advantageously located on the integrated circuit with a high degree of positional freedom. For one embodiment, the special contact pads may be disposed on the die at a location that is not in the same alignment as the bond pads. The special contact pads may be smaller than the bond pads so as not to increase the die size due to the special contact pads. The special contact points may also be used to externally program internal circuits (e.g., nonvolatile circuits) at the die or package level. The special contact points may also be used to select redundant circuits for faulty circuits.

    Abstract translation: 一种集成电路,包括接合焊盘和特殊接触焊盘或点。 接合焊盘用于将集成电路作为整体与外部电路接口,并且将被连接到封装或电路板。 接合焊盘以预定的对准方式设置在管芯上,例如外围,栅格或中心对准。 特殊接触焊盘用于向内部电路提供外部测试模式和/或外部监测测试内部电路的结果。 特别的接触垫可以有利地以高度的位置自由度位于集成电路上。 对于一个实施例,特殊接触焊盘可以在与焊盘不同于对准的位置处设置在管芯上。 特殊的接触焊盘可以小于接合焊盘,以便不会由于特殊的接触垫而增加管芯的尺寸。 特殊接触点也可以用于在芯片或封装级别外部编程内部电路(例如非易失性电路)。 特殊接触点也可用于选择故障电路的冗余电路。

    Apparatus for reducing power supply noise in an integrated circuit
    85.
    发明授权
    Apparatus for reducing power supply noise in an integrated circuit 有权
    用于降低集成电路中电源噪声的装置

    公开(公告)号:US06339338B1

    公开(公告)日:2002-01-15

    申请号:US09484600

    申请日:2000-01-18

    CPC classification number: G06F1/26 G01R31/31721 Y10T307/50

    Abstract: A main power supply continuously provides a current to a power input terminal of an integrated circuit device under test (DUT). The DUT's demand for current at the power input terminal temporarily increases during state changes in synchronous logic circuits implemented within the DUT. To limit variation (noise) in voltage at the power input terminal arising from these temporary increases in current demand, a charged capacitor is connected to the power input terminal during each DUT state change. The capacitor discharges into the power input terminal to supply additional current to meet the DUT's increased demand. Following each DUT state change the capacitor is disconnected from the power input terminal and charged to a level sufficient to meet a predicted increase in current demand during a next DUT state change.

    Abstract translation: 主电源向被测集成电路器件(DUT)的电源输入端连续提供电流。 在DUT内实现的同步逻辑电路的状态变化期间,DUT对电源输入端电流的需求暂时增加。 为了限制由于电流需求暂时增加引起的电力输入端子的电压变化(噪声),在每个DUT状态改变期间,充电的电容器连接到电力输入端子。 电容器放电到电源输入端以提供额外的电流,以满足DUT的增加的需求。 在每个DUT状态改变之后,电容器从电源输入端子断开并被充电到足以满足下一个DUT状态改变期间电流需求的预计增加的电平。

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