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    • 3. 发明授权
    • Pump circuit boosting a supply voltage
    • 泵电路提升电源电压
    • US06326834B1
    • 2001-12-04
    • US09602896
    • 2000-06-23
    • Hironobu AkitaMasaharu WadaKenji TsuchidaHironori Banba
    • Hironobu AkitaMasaharu WadaKenji TsuchidaHironori Banba
    • G05F110
    • H02M3/073
    • First transistors for charging respective one side nodes of a plurality of capacitors are connected to these nodes of the capacitors, respectively. Second transistors for outputting electric charge of each capacitor are connected between respective one side nodes of the capacitors and an output terminal, respectively. A plurality of third transistors for transferring the electric charge of the other side nodes of the capacitors to the other nodes are connected to the respective other nodes. The electric charge of each capacitor is serially transferred from nodes of a high electric potential to nodes of a lower electric potential through one path by sequentially controlling the third transistors, or the electric charge of each capacitor is parallel transferred between arbitrary nodes of a high electric potential and low nodes through a plurality of paths. By these operations, electric charge of each capacitor is recycled.
    • 用于对多个电容器的各个侧面节点进行充电的第一晶体管分别连接到电容器的这些节点。 用于输出每个电容器的电荷的第二晶体管分别连接在电容器的相应的一个侧面节点和输出端子之间。 用于将电容器的另一侧节点的电荷转移到其他节点的多个第三晶体管连接到相应的其他节点。 每个电容器的电荷通过顺序地控制第三晶体管,通过一个路径从高电位的节点被串行地传递到较低电位的节点,或者每个电容器的电荷在高电位的任意节点之间并行传送 潜在和低节点通过多个路径。 通过这些操作,每个电容器的电荷被再循环。
    • 4. 发明授权
    • Booster circuit and semiconductor memory device having the same
    • 具有相同功能的升压电路和半导体存储器件
    • US06195307B1
    • 2001-02-27
    • US09502045
    • 2000-02-11
    • Akira UmezawaShigeru AtsumiHironori Banba
    • Akira UmezawaShigeru AtsumiHironori Banba
    • G11C700
    • G11C5/145G11C16/30
    • In a booster circuit, a gate of an input-side transistor whose end is supplied with a power supply voltage is supplied with an inverted signal of a signal supplied to a signal input terminal of a booster unit at a first stage or supplied with an AND signal of the inverted signal and a booster circuit activation signal. Therefore, when the transistor at the first stage operates, the input-side transistor is turned off. Accordingly, a back flow of a current from inside the booster circuit to a power supply is prevented, so that the efficiency of the booster circuit can be improved. Further, fluctuations of the output voltage are not brought about even when the power supply voltage greatly fluctuates, so that the reliability of peripheral elements and memory cells can be improved and the allowable range of an external power supply voltage can be widened.
    • 在升压电路中,向其端部供给电源电压的输入侧晶体管的栅极提供在第一级提供给增压器单元的信号输入端子的信号的反相信号,或者被提供有“ 反相信号的信号和升压电路激活信号。 因此,当第一级的晶体管工作时,输入侧晶体管截止。 因此,防止了从升压电路内部到电源的电流的反向流动,从而可以提高升压电路的效率。 此外,即使当电源电压剧烈波动时也不会产生输出电压的波动,从而可以提高外围元件和存储单元的可靠性,并且可以扩大外部电源电压的允许范围。
    • 6. 发明授权
    • Semiconductor integrated circuit device having a booster circuit and a
storage device
    • 具有升压电路和存储装置的半导体集成电路装置
    • US6041012A
    • 2000-03-21
    • US31686
    • 1998-02-27
    • Hironori BanbaHitoshi ShigaShigeru AtsumiAkira Umezawa
    • Hironori BanbaHitoshi ShigaShigeru AtsumiAkira Umezawa
    • G11C5/14G11C16/30G11C7/00
    • G11C5/143G11C16/30G11C5/145G11C5/147
    • A semiconductor integrated circuit device according to the present invention includes a booster circuit 1 for raising an external power supply voltage Vccext, a level detecting circuit 2 for detecting fluctuation in a stepped-up voltage Vccint2, an internal voltage generating circuit 3 for generating an internal voltage Vccint on the basis of the stepped-up voltage Vccint2, an address buffer 4, an address decoder 5, and a memory cell array 6 of an EEPROM structure. The level detecting circuit 2 includes a first level detecting part for performing level detection during a memory access state, and a second level detecting part for performing level detection during a stand-by state. During the stand-by state, the internal voltage generating circuit 3 short-circuits the stepped-up voltage Vccint2 and the internal voltage Vccint. The second level detecting part has lower power consumption than that of the first level detecting part, so that it is possible to reducing the power consumption during the stand-by state without lowering the driving voltage.
    • 根据本发明的半导体集成电路器件包括用于提高外部电源电压Vccext的升压电路1,用于检测升压电压Vccint2中的波动的电平检测电路2,用于产生内部电压的内部电压产生电路3 基于升压电压Vccint2的电压Vccint,地址缓冲器4,地址解码器5和EEPROM结构的存储单元阵列6。 电平检测电路2包括用于在存储器访问状态期间执行电平检测的第一电平检测部分和用于在待机状态期间执行电平检测的第二电平检测部分。 在待机状态下,内部电压产生电路3使升压电压Vccint2和内部电压Vccint短路。 第二电平检测部件具有比第一电平检测部件低的功率消耗,从而可以在不降低驱动电压的情况下降低待机状态下的功耗。
    • 9. 发明授权
    • Nonvolatile semiconductor memory device
    • 非易失性半导体存储器件
    • US06385087B2
    • 2002-05-07
    • US09851332
    • 2001-05-09
    • Shigeru AtsumiHironori Banba
    • Shigeru AtsumiHironori Banba
    • G11C1134
    • G11C16/16G11C16/08
    • A nonvolatile semiconductor memory device includes a row decoder circuit having first and second N-channel MOS transistors and first and second P-channel MOS transistors which correspond to each of word lines. One end of a source-to-drain current path of the first N-channel MOS transistor is connected to the word line, and the other end thereof is connected to a corresponding one of output terminals of a predecoder circuit. One end of a source-to-drain current path of the second N-channel MOS transistor is connected to the word line, and the other end thereof is supplied with a voltage of 0V or more in a data erase mode and is supplied with a low logical level signal in modes other than the data erase mode. A source-to-drain current path of the first P-channel MOS transistor is connected in parallel to the source-to-drain current path of the first N-channel MOS transistor, and a source-to-drain current path of the second P-channel MOS transistor is connected in parallel to the source-to-drain current path of the second N-channel MOS transistor.
    • 非易失性半导体存储器件包括具有第一和第二N沟道MOS晶体管的行解码器电路和对应于每条字线的第一和第二P沟道MOS晶体管。 第一N沟道MOS晶体管的源极 - 漏极电流路径的一端连接到字线,并且其另一端连接到预解码器电路的对应的一个输出端。 第二N沟道MOS晶体管的源极到漏极电流路径的一端连接到字线,并且在数据擦除模式中,其另一端被提供0V以上的电压,并被提供有 低数据擦除模式以外的模式下的低逻辑电平信号。 第一P沟道MOS晶体管的源极 - 漏极电流路径并联连接到第一N沟道MOS晶体管的源极 - 漏极电流路径,并且第二P沟道MOS晶体管的源极 - 漏极电流路径 P沟道MOS晶体管与第二N沟道MOS晶体管的源极 - 漏极电流路径并联连接。