会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Nonvolatile semiconductor memory with charge storage layers and control gates
    • 具有电荷存储层和控制栅极的非易失性半导体存储器
    • US08238154B2
    • 2012-08-07
    • US12552563
    • 2009-09-02
    • Mario SakoJun FujimotoNoriyasu KumazakiYasuhiko HondaYoshihiko Kamata
    • Mario SakoJun FujimotoNoriyasu KumazakiYasuhiko HondaYoshihiko Kamata
    • G11C16/04
    • G11C5/147G11C16/0483G11C16/30
    • A nonvolatile semiconductor memory includes a memory cell array, bit lines, a first voltage generator, and a second voltage generator. The memory cell array includes memory cells. The bit lines each of which is connected electrically to one end of the current path of the corresponding one of the memory cells. The first voltage generator which is capable of supplying via a first output terminal to the bit lines a first voltage externally supplied or a third voltage which is obtained by stepping down a second voltage supplied and higher than the first voltage and which is as high as the first voltage. The second voltage generator which is capable of supplying a fourth voltage obtained by stepping down the second voltage to the bit lines via a second output terminal when the first voltage generator steps down the second voltage to generate the third voltage.
    • 非易失性半导体存储器包括存储单元阵列,位线,第一电压发生器和第二电压发生器。 存储单元阵列包括存储单元。 每个位线与相应的一个存储单元的电流路径的一端电连接。 第一电压发生器,其能够经由第一输出端子向位线提供外部提供的第一电压或通过降低提供的并高于第一电压的第二电压而获得的第三电压,并且其与第一电压一样高 第一电压。 第二电压发生器,当第一电压发生器降低第二电压以产生第三电压时,能够将通过第二输出端降低第二电压而获得的第四电压提供给位线。
    • 7. 发明授权
    • Semiconductor storage device and boosting circuit
    • 半导体存储装置和升压电路
    • US08310878B2
    • 2012-11-13
    • US12956423
    • 2010-11-30
    • Noriyasu Kumazaki
    • Noriyasu Kumazaki
    • G11C11/34
    • H02M3/073G11C5/145G11C16/30
    • A boosting circuit includes first to fourth rectification elements, first to fourth MOS transistors, first to fourth capacitors, and a switch circuit. The switch circuit has a low level terminal connected to a first connection node between the first end of the third rectification element and the first end of the fourth rectification element, and a high level terminal connected to a second connection node between a second end of the third MOS transistor and a second end of the fourth MOS transistor. The switch circuit conducts changeover between a voltage at the low level terminal and a voltage at the high level terminal to output a resultant voltage to the output terminal.
    • 升压电路包括第一至第四整流元件,第一至第四MOS晶体管,第一至第四电容器和开关电路。 开关电路具有连接到第三整流元件的第一端和第四整流元件的第一端之间的第一连接节点的低电平端子,以及连接到第二整流元件的第二端之间的第二连接节点的高电平端子 第三MOS晶体管和第四MOS晶体管的第二端。 开关电路在低电平端子的电压和高电平端​​子之间的电压之间进行切换,以将合成的电压输出到输出端子。
    • 8. 发明申请
    • SEMICONDUCTOR STORAGE DEVICE
    • 半导体存储设备
    • US20110249506A1
    • 2011-10-13
    • US13053839
    • 2011-03-22
    • Akira UmezawaNoriyasu KumazakiDaisuke ArizonoMami Kakoi
    • Akira UmezawaNoriyasu KumazakiDaisuke ArizonoMami Kakoi
    • G11C16/04
    • G11C16/30G11C16/14
    • A semiconductor storage device according to an embodiment includes a plurality of memory cells which electrically rewrite data by controlling the amount of charges accumulated in a floating gate formed on a well through a tunnel insulating film. The semiconductor storage device includes a well control circuit which outputs an erasure voltage to be applied to the well through an output terminal. The semiconductor storage device includes a first pump circuit which outputs a voltage set by boosting an input voltage to the output terminal. The semiconductor storage device includes a second pump circuit which outputs a voltage set by boosting the input voltage to the output terminal and outputs a voltage higher than an output voltage of the first pump circuit. The semiconductor storage device includes a pump switching detecting circuit which outputs an assist signal to perform a boosting operation on at least one of the first pump circuit and the second pump circuit. The semiconductor storage device includes an erase pulse control circuit which sets target voltages of the first pump circuit and the second pump circuit, on the basis of setting values to set a target voltage of the erasure voltage.
    • 根据实施例的半导体存储装置包括多个存储单元,其通过控制通过隧道绝缘膜在阱上形成的浮动栅中积累的电荷量来电重写数据。 半导体存储装置包括井控电路,其通过输出端子输出要施加到井的擦除电压。 半导体存储装置包括:第一泵电路,其通过将输入电压升压到输出端子来输出设定的电压。 半导体存储装置包括:第二泵电路,其通过将输入电压升压到输出端子并输出高于第一泵电路的输出电压的电压来输出设定的电压。 半导体存储装置包括泵开关检测电路,其输出辅助信号以对第一泵电路和第二泵电路中的至少一个进行升压操作。 半导体存储装置包括:擦除脉冲控制电路,其基于设定值设定第一泵电路和第二泵电路的目标电压,设定擦除电压的目标电压。
    • 9. 发明授权
    • Semiconductor storage device with a well control circuit
    • 具有井控电路的半导体存储装置
    • US08432744B2
    • 2013-04-30
    • US13053839
    • 2011-03-22
    • Akira UmezawaNoriyasu KumazakiDaisuke ArizonoMami Kakoi
    • Akira UmezawaNoriyasu KumazakiDaisuke ArizonoMami Kakoi
    • G11C11/34G11C16/04
    • G11C16/30G11C16/14
    • A semiconductor storage device according to an embodiment includes multiple memory cells which electrically rewrite data, a well control circuit which outputs an erasure voltage to be applied to a well through an output terminal, a first pump circuit which outputs a voltage set by boosting an input voltage to the output terminal, a second pump circuit which outputs a voltage set by boosting the input voltage to the output terminal and outputs a voltage higher than an output voltage of the first pump circuit, a pump switching detecting circuit which outputs an assist signal to perform a boosting operation on at least one of the first pump circuit and the second pump circuit and an erase pulse control circuit which sets target voltages of the first pump circuit and the second pump circuit, on the basis of setting values to set a target voltage of the erasure voltage.
    • 根据实施例的半导体存储装置包括电重写数据的多个存储单元,输出通过输出端施加到阱的擦除电压的阱控制电路,第一泵电路,其通过升压输入端输出设定的电压 输出端子的电压;第二泵电路,其通过将输入电压升压到输出端子而输出电压,并输出高于第一泵电路的输出电压的电压;泵切换检测电路,其将辅助信号输出到 在第一泵电路和第二泵电路中的至少一个上执行升压操作,以及擦除脉冲控制电路,其基于设定值设定第一泵电路和第二泵电路的目标电压,以设定目标电压 的擦除电压。