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    • 43. 发明授权
    • Semiconductor memory device having a power-on reset circuit
    • 具有上电复位电路的半导体存储器件
    • US06642757B2
    • 2003-11-04
    • US09957027
    • 2001-09-21
    • Tamio IkehashiKazushige Kanda
    • Tamio IkehashiKazushige Kanda
    • H03L700
    • H03K17/223G11C5/143G11C5/145
    • A semiconductor device includes an internal power supply terminal for supplying an internal power supply voltage, an oscillator generating a clock pulse when the internal power supply voltage becomes higher than a first voltage, a charge pump circuit charge pumping upon receiving the clock pulse, a reference voltage generator using the output voltage from the charge pump circuit as a power supply, and a voltage monitor which uses the output voltage from the charge pump circuit as a power supply, has a comparator for comparing a divided voltage of the internal power supply voltage with the reference voltage, and outputs a first signal of a first logic level as the power-on reset signal when the internal power supply voltage is higher than a second voltage. With this arrangement, a power-on reset circuit with little variation in power-on monitoring level can be provided.
    • 一种半导体器件包括用于提供内部电源电压的内部电源端子,当内部电源电压变得高于第一电压时产生时钟脉冲的振荡器,接收时钟脉冲时的电荷泵电路电荷泵浦, 电压发生器,使用来自电荷泵电路的输出电压作为电源,以及使用来自电荷泵电路的输出电压作为电源的电压监视器,具有比较器,用于将内部电源电压的分压与 参考电压,并且当内部电源电压高于第二电压时,输出第一逻辑电平的第一信号作为上电复位信号。 通过这种布置,可以提供上电监视级别变化小的上电复位电路。
    • 44. 发明授权
    • Semiconductor integrated circuit
    • 半导体集成电路
    • US06469573B2
    • 2002-10-22
    • US09731880
    • 2000-12-08
    • Kazushige KandaTamio IkehashiKen TakeuchiKenichi Imamiya
    • Kazushige KandaTamio IkehashiKen TakeuchiKenichi Imamiya
    • G05F110
    • G11C7/062
    • A semiconductor integrated circuit includes a limiter circuit for outputting a voltage determining flag in order to set a boosted voltage level of a booster circuit to be a predetermined value, and a monitoring circuit for monitoring a monitoring node of the limiter circuit to output a monitoring signal for the stabilization of a boosted voltage to a first external terminal. The monitoring circuit detects a first level change of the voltage determining flag from “H” to “L” after the starting of the operation of the limiter circuit, by means of a comparator, to which an external power supply voltage and external reference voltage supplied from second and third external terminals are given, and thereafter, outputs a monitoring signal for holding a constant logical level during the operation of the limiter circuit. In order to provide a voltage trimming function, a voltage intended to be set in an external terminal may be given from the outside to deactivate a feedback system of the limiter circuit to operate a resistance value of the limiter circuit to detect and store a limiter flag. Thus, there is provided a semiconductor integrated circuit capable of simply monitoring the output voltage state of an internal power supply circuit by the external terminal and easily trimming an internal voltage.
    • 半导体集成电路包括限幅电路,用于输出电压确定标志,以便将升压电路的升压电压设定为预定值;以及监视电路,用于监视限幅器电路的监视节点以输出监视信号 用于稳定第一外部端子的升压电压。 监控电路通过比较器检测在限制器电路的操作开始之后电压确定标志从“H”到“L”的第一电平变化,供给外部电源电压和外部参考电压 给出第二和第三外部端子,然后在限幅器电路的操作期间输出用于保持恒定逻辑电平的监视信号。 为了提供电压调整功能,可以从外部给出旨在设置在外部端子中的电压以去激活限幅器电路的反馈系统,以操作限幅器电路的电阻值以检测和存储限幅器标志 。 因此,提供了能够简单地通过外部端子监视内部电源电路的输出电压状态并容易地修整内部电压的半导体集成电路。
    • 46. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US6097638A
    • 2000-08-01
    • US22014
    • 1998-02-11
    • Toshihiko HimenoKazushige KandaHiroshi Nakamura
    • Toshihiko HimenoKazushige KandaHiroshi Nakamura
    • G11C16/26G11C16/06
    • G11C16/26
    • An EEPROM employs, as a scheme of detecting data of a memory cell in a memory cell array, a scheme of detecting the potential of a bit line potential sense node, which depends on the relationship in amplitude between the current for charging a bit line from a current source and the discharge current flowing to a selected cell using a sense amplifier. The sense amplifier is arranged in correspondence with one bit line and includes a constant current source transistor for charging the corresponding bit line, a latch circuit for latching memory cell data read out to the bit line potential sense node, and a switch transistor for turning on/off the charge path to the bit line based on data of the latch circuit. In the verify read mode, the cell current between the Vcc node and Vss node of a cell not to be written or a completely written cell can be turned off, so verification can be performed without flowing any unnecessary current.
    • 作为检测存储单元阵列中的存储单元的数据的方案,EEPROM采用检测位线电位检测节点的电位的方案,该方案取决于用于对位线的充电电流之间的幅度的关系, 电流源和使用读出放大器流向选定单元的放电电流。 读出放大器与一个位线相对应地布置,并且包括用于对相应位线充电的恒流源晶体管,用于锁存读出到位线电位检测节点的存储单元数据的锁存电路和用于导通的开关晶体管 /根据锁存电路的数据关闭位线的充电路径。 在验证读取模式下,可以关闭不要写入的单元的Vcc节点和Vss节点之间的单元电流,或者完全写入单元的单元电流可以被关闭,因此可以在不流过任何不必要的电流的情况下执行验证。
    • 47. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US08315094B2
    • 2012-11-20
    • US12957865
    • 2010-12-01
    • Kazushige KandaToshiki HisadaKatsuaki Isobe
    • Kazushige KandaToshiki HisadaKatsuaki Isobe
    • G11C11/34G11C16/04
    • H01L27/11519H01L27/11521H01L27/11524
    • Provided is a semiconductor memory device including: multiple bit lines arranged in parallel to one another; multiple sense-amplifier bit lines arranged away from end portions of the bit lines; a fourth sense-amplifier bit line formed with a wire of a first layer arranged below the bit lines; selection transistors with a pair of gate electrodes arranged in a direction normal to the first to sixth bit lines; a first wire arranged below the bit lines and the sense-amplifier bit lines, and having an end portion extending to below the third bit line and connected to the bit line; a third wire formed with a layer of the gate electrode used as a wire, the third wire including a first end portion positioned below the fourth sense-amplifier bit line and connected to the fourth sense-amplifier bit line, and a second end portion positioned below the second sense-amplifier bit line; and a fourth wire formed with a wire of the first layer and arranged between the third wire and the second sense-amplifier bit line to connect the third wire to the second sense-amplifier bit line.
    • 提供一种半导体存储器件,包括:彼此平行布置的多个位线; 多个读出放大器位线布置成远离位线的端部; 第四感测放大器位线,其布置在位线下方的第一层的导线; 选择晶体管,其具有沿与第一至第六位线垂直的方向排列的一对栅电极; 布置在位线下方的第一线和读出放大器位线,并且具有延伸到第三位线下方并连接到位线的端部; 第三线,其形成有用作线的栅极电极层,所述第三线包括位于所述第四感测放大器位线下方并连接到所述第四感测放大器位线的第一端部,以及位于 低于第二感测放大器位线; 以及第四导线,其由第一层的导线形成,并且布置在第三导线和第二读出放大器位线之间,以将第三导线连接到第二感测放大器位线。
    • 50. 发明授权
    • Semiconductor device for generating power on reset signal
    • 用于产生上电复位信号的半导体器件
    • US07646222B2
    • 2010-01-12
    • US11376416
    • 2006-03-16
    • Masaki IchikawaKazushige Kanda
    • Masaki IchikawaKazushige Kanda
    • H03L7/00
    • H03K17/223G06F1/24
    • A reference voltage generating circuit receives a power supply voltage and generates a reference voltage. A reference voltage level guarantee circuit generates a sense signal when the circuit senses that a value of the reference voltage has reached a predetermined value. A power supply voltage sensing circuit has a voltage comparator circuit which compares a voltage obtained by dividing a power supply voltage with the reference voltage and outputs a power ON reset signal. An operation of the voltage comparator circuit is controlled based on a sense signal. When the value of the power supply voltage increases and the value of the reference voltage reaches a predetermined value, the voltage comparator circuit operates, and a power ON reset signal is outputted in response to a result of comparison between a divisional voltage and the reference voltage.
    • 参考电压产生电路接收电源电压并产生参考电压。 当电路感测到参考电压的值已经达到预定值时,参考电压电平保证电路产生感测信号。 电源电压检测电路具有电压比较器电路,其将通过将电源电压分压获得的电压与参考电压进行比较,并输出电源接通复位信号。 基于感测信号来控制电压比较器电路的操作。 当电源电压值增加并且参考电压的值达到预定值时,电压比较器电路工作,并且响应于分压与参考电压之间的比较结果而输出电源复位信号 。