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
    • 4. 发明授权
    • Semiconductor memory having reduced time for writing defective information
    • 半导体存储器具有减少写入缺陷信息的时间
    • US06219286B1
    • 2001-04-17
    • US09586992
    • 2000-06-05
    • Ikuo FuchigamiTomonori KataokaYouichi NishidaTomoo KimuraKen Kawai
    • Ikuo FuchigamiTomonori KataokaYouichi NishidaTomoo KimuraKen Kawai
    • G11C700
    • G11C29/848
    • The present invention provides a semiconductor memory which can reduce the area of a circuit for replacing defective memory cells with redundant memory cells as well as reduce the time for writing defect information. The semiconductor memory of the present invention comprises a memory cell array 1 comprising (n+1) (n is a positive integer) word lines, a register unit 4 holding an encoded defect address for specifying a defective word line, a defect address decoder 31 for decoding the defect address from the register unit 4 to specify the defective word line, selection means S1˜Sn for selecting, for the i-th (1≦i≦n) output signal line of a row decoder 2, one of the i-th and i+1-th word lines and connecting the selected word line to the i-th output signal line, and control means C1˜Cn each controlling corresponding one of the selection means S1˜Sn on the basis of an output of the defect address decoder 31 so as to select, for the output signal line of the row decoder 2, one of the word lines except the defective word line in accordance with the arrangement order.
    • 本发明提供一种半导体存储器,其可以减少用于用冗余存储器单元替换有缺陷的存储单元的电路的面积,并且减少写入缺陷信息的时间。 本发明的半导体存储器包括存储单元阵列1,其包括(n + 1)(n是正整数)字线,保持用于指定缺陷字线的编码缺陷地址的寄存器单元4,缺陷地址解码器31 为了从寄存器单元4解码缺陷地址以指定缺陷字线,对于行解码器2的第i(1 <= i <= n)个输出信号线,选择装置S1〜Sn选择 第i个和第i个第1个字线并将选择的字线连接到第i个输出信号线,以及控制装置C1〜Cn,每个控制装置C1〜Cn根据输出 对于行解码器2的输出信号线,根据排列顺序选择除缺陷字线以外的字线之一。
    • 7. 发明授权
    • Semiconductor integrated circuit
    • 半导体集成电路
    • US06208124B1
    • 2001-03-27
    • US09586993
    • 2000-06-05
    • Ikuo FuchigamiTomonori KataokaYouichi NishidaTomoo Kimura
    • Ikuo FuchigamiTomonori KataokaYouichi NishidaTomoo Kimura
    • G05F140
    • G05F1/565Y10T307/25
    • A semiconductor integrated circuit includes a booster for boosting a power supply voltage, and outputting the boosted voltage; an output circuit being supplied with the boosted voltage, and generating an output voltage from the boosted voltage; a reference voltage generator being supplied with the power supply voltage, and generating a reference voltage from the power supply voltage; a voltage divider being supplied with the output voltage from the output circuit, and dividing the output voltage with a predetermined voltage ratio; and a differential amplifier being supplied with the reference voltage and the divided voltage, and controlling the output circuit by supplying the output circuit with a voltage obtained by performing differential amplification on the reference voltage and the divided voltage according to the power supply voltage, thereby maintaining the output voltage from the output circuit at a predetermined voltage. In this circuit, since the reference voltage generator and the differential amplifier are operated with the power supply voltage, it is not necessary to supply the boosted voltage to them, whereby the output current from the booster is reduced. Therefore, undesired reduction in the boosted voltage due to an increase in the output current is suppressed. As the result, the capacitance used in the booster is reduced, and the area of the semiconductor integrated circuit is reduced.
    • 半导体集成电路包括用于升压电源电压并输出升压电压的升压器; 输出电路被提供升压电压,并从升压电压产生输出电压; 参考电压发生器被提供有电源电压,并从电源电压产生参考电压; 分压器从输出电路提供输出电压,并以预定的电压比划分输出电压; 并且差分放大器被提供有参考电压和分压,并且通过向输出电路提供根据电源电压对参考电压和分压进行差分放大而获得的电压来控制输出电路,从而保持 在预定电压下来自输出电路的输出电压。 在该电路中,由于参考电压发生器和差分放大器以电源电压工作,所以不需要向其提供升压电压,从而降低了来自升压器的输出电流。 因此,抑制了由于输出电流的增加引起的升压电压的不希望的降低。 结果,减小了增强器中使用的电容,并且减小了半导体集成电路的面积。