Semiconductor device
    21.
    发明申请
    Semiconductor device 失效
    半导体器件

    公开(公告)号:US20040136251A1

    公开(公告)日:2004-07-15

    申请号:US10751402

    申请日:2004-01-06

    Abstract: The present invention provides a sense circuit for DRAM memory cell to cover the events that a sense time becomes remarkably longer when a power source voltage is lowered, a sense time under the low voltage condition becomes shorter when temperature rises and a sense time changes to a large extent for fluctuation of processes. The present invention provides the following typical effects. A switch means is provided between the bit line BL and local bit line LBL connected to the memory cells for isolation and coupling of these bit lines. The bit line BL is precharged to the voltage of VDL/2, while the local bit line LBL is precharged to the voltage of VDL. The VDL is the maximum amplitude voltage of the bit line BL. A sense amplifier SA comprises a first circuit including a differential MOS pair having the gate connected to the bit line BL and a second circuit connected to the local bit line LBL for full amplitude amplification and for holding the data. When the bit line BL and local bit line LBL are capacitance-coupled via a capacitor, it is recommended to use a latch type sense amplifier SA connected to the local bit line LBL.

    Abstract translation: 本发明提供了一种用于DRAM存储单元的感测电路,以覆盖当电源电压降低时感测时间变得显着更长的事件,当温度升高时,低电压条件下的感测时间变短,感测时间变为 过程波动很大程度。 本发明提供以下典型的效果。 在位线BL和连接到存储器单元的局部位线LBL之间提供开关装置,用于这些位线的隔离和耦合。 位线BL被预充电到VDL / 2的电压,而局部位线LBL被预充电到VDL的电压。 VDL是位线BL的最大幅度电压。 读出放大器SA包括第一电路,其包括具有连接到位线BL的栅极的差分MOS对,以及连接到用于全幅放大的局部位线LBL并用于保持该数据的第二电路。 当位线BL和本地位线LBL通过电容器电容耦合时,建议使用连接到局部位线LBL的锁存型读出放大器SA。

    Data processing system
    22.
    发明申请
    Data processing system 失效
    数据处理系统

    公开(公告)号:US20040117693A1

    公开(公告)日:2004-06-17

    申请号:US10372970

    申请日:2003-02-26

    CPC classification number: G06F21/77 G06F21/55 G06F21/755

    Abstract: There is provided a technology for preventing disabling of function of a clock monitoring circuit by a hacker in a microcomputer for IC card provided with a clock monitoring circuit as a countermeasure for a hacker. In the microcomputer for IC card provided with the clock monitoring circuit, the clock monitoring circuit is given the function to perform the detecting operation twice during one cycle, namely at the timings of rise and fall of the clock.

    Abstract translation: 提供了一种技术,用于防止在设置有时钟监视电路的IC卡的微型计算机中的黑客对时钟监控电路的功能的禁用作为黑客的对策。 在设置有时钟监视电路的IC卡的微计算机中,时钟监视电路具有在一个周期内即时钟上升和下降的定时执行两次检测操作的功能。

    Nonvolatile memory apparatus
    25.
    发明申请
    Nonvolatile memory apparatus 审中-公开
    非易失存储器

    公开(公告)号:US20040042269A1

    公开(公告)日:2004-03-04

    申请号:US10633582

    申请日:2003-08-05

    CPC classification number: G11C11/5628 G11C11/5642 G11C16/06 G11C2211/5641

    Abstract: Disclosed is a nonvolatile memory apparatus in which a nonvolatile memory and a controller are mounted and which realizes improved performance of read/write speeds and improved resistance to a retention error. A nonvolatile memory can store information of two bits or more, and can perform a first reading operation of outputting information read from a nonvolatile memory cell as 1-bit information and a second reading operation of outputting the read information as 2-bit information. A controller performs the first reading operation to read first information from the nonvolatile memory and performs the second reading operation to read second information. The reading speed of the first reading operation is faster than that of the second reading operation. In writing to a first area to be read, by using either a voltage in the upper-limit threshold voltage distribution or a voltage in the lower-limit threshold voltage distribution as a threshold voltage, resistance to a retention error of the first information is improved.

    Abstract translation: 公开了一种非易失性存储装置,其中安装了非易失性存储器和控制器,并且实现了读/写速度的改进的性能和改进的保持误差的抵抗力。 非易失性存储器可以存储两位以上的信息,并且可以执行将从非易失性存储单元读取的信息作为1位信息输出的第一读取操作和作为2位信息输出读取信息的第二读取操作。 控制器执行第一读取操作以从非易失性存储器读取第一信息,并执行第二读取操作以读取第二信息。 第一读取操作的读取速度比第二读取操作的读取速度更快。 在写入要读取的第一区域中,通过使用上限阈值电压分布中的电压或下限阈值电压分布中的电压作为阈值电压,改善对第一信息的保留误差的抵抗力 。

    Module for optical transmitter
    30.
    发明申请
    Module for optical transmitter 失效
    光发射机模块

    公开(公告)号:US20030142928A1

    公开(公告)日:2003-07-31

    申请号:US10301641

    申请日:2002-11-22

    Abstract: The present invention provides a module for optical transmitter formed as an opto-electronic integrated circuit (OEIC) for reducing the heat generated at a driver circuit for modulator and stabilizing the thermal fluctuation in an optical modulator. For promoting the heat dissipation of the top face of the driver circuit for modulator of the OEIC chip, a protruding cooling plate is formed on metal wiring. A part of a semiconductor substrate present between the optical modulator and the driver circuit for modulator is thinned or removed. Further, a carrier for mounting thereon the OEIC chip is divided into two parts, and a peltier cooler is connected to the optical modulator side. This achieves the promotion of heat dissipation from the top face of the driver circuit for modulator, the thermal separation between the optical modulator and the driver circuit for modulator, and the temperature stabilization due to the peltier cooler. The temperature rise and the temperature change of the optical modulator are suppressed, so that it is possible to manufacture a module for optical transmitter showing no characteristic deterioration, in which an optical modulator and a driver circuit for modulator are formed as an OEIC chip.

    Abstract translation: 本发明提供了一种用于光发射器的模块,其形成为用于减少用于调制器的驱动电路产生的热量并稳定光调制器中的热波动的光电集成电路(OEIC)。 为了促进OEIC芯片的调制器的驱动电路的顶面的散热,在金属布线上形成突出的冷却板。 存在于调制器的光调制器和驱动电路之间的半导体衬底的一部分被薄化或去除。 此外,用于安装OEIC芯片的载体被分成两部分,并且珀耳替尔冷却器连接到光调制器侧。 这实现了从用于调制器的驱动器电路的顶面,用于调制器的光学调制器和驱动器电路之间的热分离以及由于珀尔帖冷却器引起的温度稳定的散热的促进。 抑制了光调制器的温度上升和温度变化,从而可以制造出没有特征劣化的光发送器模块,其中光调制器和用于调制器的驱动电路形成为OEIC芯片。

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