Semiconductor memory device with circuit executing burn-in testing
    4.
    发明授权
    Semiconductor memory device with circuit executing burn-in testing 失效
    具有执行老化测试的电路的半导体存储器件

    公开(公告)号:US06704231B1

    公开(公告)日:2004-03-09

    申请号:US10397211

    申请日:2003-03-27

    IPC分类号: G11C700

    摘要: A semiconductor memory device includes an isolation unit isolating a bit line in a first region including a memory cell formed of a thick film transistor and a second region including a sense amplifier formed of a thin film transistor. Voltage supply lines are provided corresponding to respective regions. In a test mode, the isolation unit isolates the two regions. A voltage for testing is supplied from the voltage supply line. Thus, a voltage for testing corresponding to a thick film transistor and a thin film transistor can be supplied to allow efficient execution of a burn-in test.

    摘要翻译: 半导体存储器件包括隔离单元,隔离包括由厚膜晶体管形成的存储单元的第一区域和包括由薄膜晶体管形成的读出放大器的第二区域的位线。 对应于各个区域提供电压供应线。 在测试模式下,隔离单元隔离两个区域。 用于测试的电压从电源线供应。 因此,可以提供与厚膜晶体管和薄膜晶体管相对应的用于测试的电压,以有效地执行老化测试。

    Voltage down converter allowing supply of stable internal power supply voltage
    5.
    发明授权
    Voltage down converter allowing supply of stable internal power supply voltage 失效
    降压转换器允许提供稳定的内部电源电压

    公开(公告)号:US06407538B1

    公开(公告)日:2002-06-18

    申请号:US09793594

    申请日:2001-02-27

    IPC分类号: G05F316

    CPC分类号: G05F1/465

    摘要: A voltage down converter includes a first voltage down converting circuit and a second voltage down converting circuit. The first voltage down converting circuit supplies an internal power supply voltage VCCS1 to an internal circuit only during a period T when the internal power supply voltage VCCS1 falls below a predetermined voltage according to a signal DCE. In the first voltage down converting circuit, P channel MOS transistors are selectively activated according to the levels of the plurality of voltages, and a voltage down converting partial circuit supplies a current of an amount corresponding to the level of the external power supply voltage VCC to a power supply node. As a result, even during the period T, the internal power supply voltage can be maintained at a level of the reference voltage.

    摘要翻译: 降压转换器包括第一降压转换电路和第二降压转换电路。 第一降压转换电路仅在内部电源电压VCCS1根据信号DCE下降到预定电压以下的时段T期间将内部电源电压VCCS1提供给内部电路。 在第一降压转换电路中,根据多个电压的电平选择性地激活P沟道MOS晶体管,并且降压转换部分电路将对应于外部电源电压VCC的电平的电流提供给 电源节点。 结果,即使在周期T期间,也可以将内部电源电压维持在基准电压的水平。

    Semiconductor integrated circuit device
    10.
    发明授权
    Semiconductor integrated circuit device 有权
    半导体集成电路器件

    公开(公告)号:US08154271B2

    公开(公告)日:2012-04-10

    申请号:US13115327

    申请日:2011-05-25

    申请人: Fukashi Morishita

    发明人: Fukashi Morishita

    IPC分类号: G05F3/16

    CPC分类号: G05F1/465

    摘要: The semiconductor integrated circuit device includes load circuits and internal voltage generators for generating internal source voltages for driving the load circuits. Each of the internal voltage generators includes a reference voltage generating circuit for generating reference voltages, and regulator circuits for generating the internal source voltages with reference to the reference voltages. The regulator circuit is formed over an SOI substrate and includes a preamplifier circuit for detecting and amplifying a difference between each of the internal source voltages and each of the reference voltages, a main amplifier circuit for amplifying the output of the preamplifier circuit and generating a control signal, and a driver circuit for generating the internal source voltage in response to the control signal. An input stage of the main amplifier circuit is configured by MOS transistors coupling the gates and bodies of the MOS transistors.

    摘要翻译: 半导体集成电路装置包括用于产生驱动负载电路的内部源电压的负载电路和内部电压发生器。 每个内部电压发生器包括用于产生参考电压的参考电压产生电路和用于参考参考电压产生内部源极电压的调节器电路。 调节器电路形成在SOI衬底上,并且包括用于检测和放大每个内部源电压和每个参考电压之间的差的前置放大器电路,用于放大前置放大器电路的输出并产生控制的主放大器电路 信号和用于响应于控制信号产生内部源电压的驱动器电路。 主放大器电路的输入级由耦合MOS晶体管的栅极和主体的MOS晶体管构成。