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    • 22. 发明公开
    • 반도체 기억 장치
    • 半导体存储器
    • KR1020020077020A
    • 2002-10-11
    • KR1020010069362
    • 2001-11-08
    • 후지쯔 가부시끼가이샤
    • 가토요시하루가와모토사토루
    • G11C11/34
    • G11C7/227G11C7/14G11C7/22G11C11/4074G11C11/4076G11C11/4099
    • PURPOSE: To provide a semiconductor memory in which a cell plate potential is not varied even in the case that a state is shifted from a state in which accumulated electric charges do not exist in electronic charges accumulating nodes of all capacitors to access operation, when a power source is applied. CONSTITUTION: This device is provided with NMOS transistors M1 to Mk connecting a VPR line and a VCP line being supply lines of reference voltage VPR, VCP from a reference voltage generating circuit 104 for each cell block B1 to BK. Gate terminals of the NMOS transistors M1 to Mk are connected commonly to a signal Π CPR. Then, the Π CPR is a signal outputting a positive logic level at the prescribed time after applying a power source. Both wirings are shunted for each cell block B1 to BK when the power source is applied by providing the NMOS transistors M1 to Mk short-circuiting the VPR line and the VCP line for each cell block B1 to BK.
    • 目的:为了提供半导体存储器,其中即使在状态从累积电荷不存在于累积所有电容器的节点的电荷中的状态转移到接近操作的情况下,电池板电位也不变化,则当 电源被应用。 构成:该装置配置有将VPR线和VCP线连接起来的NMOS晶体管M1〜Mk,VCP线是从基准电压产生电路104对每个单元块B1至BK的参考电压VPR,VCP的电源线。 NMOS晶体管M1〜Mk的栅极端子共同连接到信号ΠCPR。 然后,ΠCPR是在施加电源之后在规定时间输出正逻辑电平的信号。 当通过提供NMOS晶体管M1至Mk使每个单元块B1至BK的VPR线和VCP线短路来施加电源时,两个布线对于每个单元块B1至BK分流。
    • 24. 发明公开
    • 반도체 메모리 장치에 내부 전력을 공급하기 위한 회로 및방법
    • 半导体存储器的内部电源供应电路和半导体存储器的内部电源供应方法
    • KR1020020020209A
    • 2002-03-14
    • KR1020010054490
    • 2001-09-05
    • 후지쯔 가부시끼가이샤
    • 가토요시하루고바야시이사무
    • G11C5/14
    • G11C5/147H01L27/092H01L27/10897
    • PURPOSE: To provide an internal power source supply circuit of a semiconductor memory in which an increase of chip size can be prevented while preventing the occurrence of defect of refreshing. CONSTITUTION: A first power source circuit 16 drops first external power source VCCex1 and supplies it to an internal circuit 19 as an internal power source VBccin in a normal operation mode. A second power source circuit 20 short- circuits a second external power source Vccwx2 being lower than the first external power source Vccex2 and the internal power source Vccin in a self- refresh mode. A detecting circuit 10 detects entry for the self-refresh mode and input of the second external power source Vccex2 for data retention operation and outputs a detecting signal ∮DR. The second external power source Vccex2 and the internal power source Vccin are simultaneously short-circuited in the first and second power source circuits 16, 20 based on the detecting signal ∮DR of the detecting circuit 10.
    • 目的:提供半导体存储器的内部电源电路,其中可以防止芯片尺寸的增加,同时防止刷新缺陷的发生。 构成:第一电源电路16降低第一外部电源VCCex1,并将其作为内部电源VBccin以正常工作模式提供给内部电路19。 第二电源电路20在自刷新模式下将第二外部电源Vccwx2短于第一外部电源Vccex2和内部电源Vccin。 检测电路10检测用于自刷新模式的输入和用于数据保持操作的第二外部电源Vccex2的输入,并输出检测信号∮DR。 基于检测电路10的检测信号∮DR,在第一和第二电源电路16,20中,第二外部电源Vccex2和内部电源Vccin同时短路。
    • 25. 发明公开
    • 반도체 집적 회로 및 반도체 집적 회로의 특성 조정 방법
    • 半导体集成电路的半导体集成电路特性调整方法
    • KR1020010078208A
    • 2001-08-20
    • KR1020010004576
    • 2001-01-31
    • 후지쯔 가부시끼가이샤
    • 와카스기노부요시가토요시하루
    • G11C29/00
    • G11C7/109G11C7/1072G11C7/1078G11C11/4093G11C29/028G11C29/46
    • PURPOSE: To restore characteristics of an internal circuit adjusted by a ROM circuit, in a semiconductor integrated circuit in which characteristics of an internal circuit can be adjusted by a ROM circuit formed by fuses and the like. CONSTITUTION: This device is provided with an adjustment control circuit, a ROM circuit, and a selecting circuit. The adjustment control circuit activates a first adjusting signal adjusting an internal circuit in accordance with an adjusting signal from the outside. The ROM circuit activates a second adjusting signal adjusting an internal circuit when information adjusting an internal circuit is programmed. The selecting circuit outputs either of the first adjusting signal and the second adjusting signal in accordance with a control signal, and adjusts characteristics of an internal circuit. Therefore, the second adjusting signal is masked by selecting the first adjusting signal, and information previously programmed in the ROM circuit is made invalid. When information is not programmed in the ROM circuit, characteristics of the internal circuit can be easily adjusted without programming information in the ROM circuit.
    • 目的:为了恢复由ROM电路调整的内部电路的特性,可以通过由保险丝等形成的ROM电路来调整内部电路的特性的半导体集成电路。 规定:该装置具有调整控制电路,ROM电路和选择电路。 调整控制电路根据来自外部的调整信号来激活调整内部电路的第一调整信号。 当对内部电路进行信息编程时,ROM电路激活调节内部电路的第二调整信号。 选择电路根据控制信号输出第一调整信号和第二调整信号,并调整内部电路的特性。 因此,通过选择第一调整信号来掩蔽第二调整信号,并且将在ROM电路中预先编程的信息无效。 当在ROM电路中没有编程信息时,可以容易地调整内部电路的特性,而不需要ROM电路中的编程信息。