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    • 1. 发明申请
    • CHARGE PUMP CIRCUIT
    • 充电泵电路
    • US20120249225A1
    • 2012-10-04
    • US13524927
    • 2012-06-15
    • Takanobu SuzukiSusumu Tanida
    • Takanobu SuzukiSusumu Tanida
    • G05F1/10
    • H02M3/073H02M1/36H02M1/44
    • There is provided a charge pump circuit which can prevent EMI noise of a frequency component independent of an operation clock frequency from occurring at the time of a change from a disable state to an enable state. The charge pump circuit includes a detection signal synchronization circuit which outputs a synchronization detection signal generated by synchronizing a detection signal outputted from a level detection circuit to a clock signal outputted from an oscillator circuit. The synchronization detection signal is used as a pump enable signal, and a first pump capacitance and a second pump capacitance in a pump circuit body are charged and discharged in response to the synchronization detection signal and the clock signal outputted from the oscillator circuit.
    • 提供了一种电荷泵电路,其可以防止在从禁用状态改变到使能状态时发生与操作时钟频率无关的频率分量的EMI噪声。 电荷泵电路包括检测信号同步电路,其输出通过使从电平检测电路输出的检测信号与从振荡器电路输出的时钟信号同步而产生的同步检测信号。 同步检测信号用作泵使能信号,并且响应于从振荡器电路输出的同步检测信号和时钟信号,在泵电路体中的第一泵电容和第二泵电容被充电和放电。
    • 2. 发明申请
    • CHARGE PUMP CIRCUIT
    • 充电泵电路
    • US20090237148A1
    • 2009-09-24
    • US12354319
    • 2009-01-15
    • Takanobu SuzukiSusumu Tanida
    • Takanobu SuzukiSusumu Tanida
    • G05F1/10
    • H02M3/073H02M1/36H02M1/44
    • There is provided a charge pump circuit which can prevent EMI noise of a frequency component independent of an operation clock frequency from occurring at the time of a change from a disable state to an enable state. The charge pump circuit includes a detection signal synchronization circuit which outputs a synchronization detection signal generated by synchronizing a detection signal outputted from a level detection circuit to a clock signal outputted from an oscillator circuit. The synchronization detection signal is used as a pump enable signal, and a first pump capacitance and a second pump capacitance in a pump circuit body are charged and discharged in response to the synchronization detection signal and the clock signal outputted from the oscillator circuit.
    • 提供了一种电荷泵电路,其可以防止在从禁用状态改变到使能状态时发生与操作时钟频率无关的频率分量的EMI噪声。 电荷泵电路包括检测信号同步电路,其输出通过使从电平检测电路输出的检测信号与从振荡器电路输出的时钟信号同步而产生的同步检测信号。 同步检测信号用作泵使能信号,并且响应于从振荡器电路输出的同步检测信号和时钟信号,在泵电路体中的第一泵电容和第二泵电容被充电和放电。
    • 3. 发明授权
    • Charge pump circuit
    • 电荷泵电路
    • US08248154B2
    • 2012-08-21
    • US13012311
    • 2011-01-24
    • Takanobu SuzukiSusumu Tanida
    • Takanobu SuzukiSusumu Tanida
    • G05F1/10
    • H02M3/073H02M1/36H02M1/44
    • There is provided a charge pump circuit which can prevent EMI noise of a frequency component independent of an operation clock frequency from occurring at the time of a change from a disable state to an enable state. The charge pump circuit includes a detection signal synchronization circuit which outputs a synchronization detection signal generated by synchronizing a detection signal outputted from a level detection circuit to a clock signal outputted from an oscillator circuit. The synchronization detection signal is used as a pump enable signal, and a first pump capacitance and a second pump capacitance in a pump circuit body are charged and discharged in response to the synchronization detection signal and the clock signal outputted from the oscillator circuit.
    • 提供了一种电荷泵电路,其可以防止在从禁用状态改变到使能状态时发生与操作时钟频率无关的频率分量的EMI噪声。 电荷泵电路包括检测信号同步电路,其输出通过使从电平检测电路输出的检测信号与从振荡器电路输出的时钟信号同步而产生的同步检测信号。 同步检测信号用作泵使能信号,并且响应于从振荡器电路输出的同步检测信号和时钟信号,在泵电路体中的第一泵电容和第二泵电容被充电和放电。
    • 4. 发明授权
    • Charge pump circuit
    • 电荷泵电路
    • US07902909B2
    • 2011-03-08
    • US12354319
    • 2009-01-15
    • Takanobu SuzukiSusumu Tanida
    • Takanobu SuzukiSusumu Tanida
    • G05F1/10
    • H02M3/073H02M1/36H02M1/44
    • There is provided a charge pump circuit which can prevent EMI noise of a frequency component independent of an operation clock frequency from occurring at the time of a change from a disable state to an enable state. The charge pump circuit includes a detection signal synchronization circuit which outputs a synchronization detection signal generated by synchronizing a detection signal outputted from a level detection circuit to a clock signal outputted from an oscillator circuit. The synchronization detection signal is used as a pump enable signal, and a first pump capacitance and a second pump capacitance in a pump circuit body are charged and discharged in response to the synchronization detection signal and the clock signal outputted from the oscillator circuit.
    • 提供了一种电荷泵电路,其可以防止在从禁用状态改变到使能状态时发生与操作时钟频率无关的频率分量的EMI噪声。 电荷泵电路包括检测信号同步电路,其输出通过使从电平检测电路输出的检测信号与从振荡器电路输出的时钟信号同步而产生的同步检测信号。 同步检测信号用作泵使能信号,并且响应于从振荡器电路输出的同步检测信号和时钟信号,在泵电路体中的第一泵电容和第二泵电容被充电和放电。
    • 7. 发明授权
    • Semiconductor memory device having layout area of periphery of output
pad reduced
    • 具有减少输出焊盘周边布局区域的半导体存储器件
    • US5694352A
    • 1997-12-02
    • US676705
    • 1996-07-08
    • Susumu TanidaYasuhiko TsukikawaKiyohiro FurutaniTakayuki Miyamoto
    • Susumu TanidaYasuhiko TsukikawaKiyohiro FurutaniTakayuki Miyamoto
    • G11C11/41G11C5/02G11C7/10G11C11/401H01L21/8242H01L27/108G11C5/06
    • G11C7/10G11C5/025
    • A semiconductor memory device includes four memory cell arrays, four output pads formed in a linear manner at the center of a semiconductor substrate, four output control circuits for generating readout data signals and control signals, four signal generation circuits responsive to the readout data signals for generating complementary pairs of data signals, and responsive to the control signals, four signal line groups including four signal lines connected between the output control circuits and the signal generation circuits, four output drivers responsive to pairs of data signals for supplying data to the output pads, and four signal line pairs connected between the signal generation circuits and output drivers. Signal generation circuits of great size are arranged at the center of the semiconductor substrate where the layout margin is great, and only the output driver is arranged in the proximity of the output pad where the layout margin is small. Therefore, the chip area is reduced. Access is speeded since the signal lines forming the signal line group are shorter in length, though greater in number, than the signal lines forming the signal line pair.
    • 半导体存储器件包括四个存储单元阵列,在半导体衬底的中心处以线性方式形成的四个输出焊盘,用于产生读出数据信号和控制信号的四个输出控制电路,响应读出数据信号的四个信号发生电路, 产生互补的数据信号对,并且响应于控制信号,四个信号线组包括连接在输出控制电路和信号发生电路之间的四条信号线,四个输出驱动器响应于数据信号对,用于向输出焊盘提供数据 和连接在信号发生电路和输出驱动器之间的四个信号线对。 大尺寸的信号发生电路配置在半导体基板的中央处,其中布局裕量大,只有输出驱动器布置在布局边距较小的输出焊盘附近。 因此,芯片面积减少。 由于形成信号线组的信号线的长度比形成信号线对的信号线的数量更多,所以访问速度加快。