LOW LEAKAGE CURRENT STATIC RANDOM ACCESS MEMORY
    12.
    发明申请
    LOW LEAKAGE CURRENT STATIC RANDOM ACCESS MEMORY 失效
    低漏电流静态随机存取存储器

    公开(公告)号:US20050185448A1

    公开(公告)日:2005-08-25

    申请号:US10708328

    申请日:2004-02-24

    Applicant: Shih-Chin Lin

    Inventor: Shih-Chin Lin

    CPC classification number: G11C11/412

    Abstract: A static random access memory (SRAM) has a plurality of SRAM cells, a first switch unit, a second switch unit, and a capacitor. During read/write operations of the SRAM cells, the first switch unit and the second switch unit are turned on so that two power terminals of the SRAM cells respectively electrically connect to VDD and VSS and that the capacitor electrically connects between VDD and VSS. When the SRAM cells are not accessed, the first switch unit and the second switch unit are turned off and the capacitor keeps a voltage gap between the two power terminals of the SRAM cells greater than a predetermined value.

    Abstract translation: 静态随机存取存储器(SRAM)具有多个SRAM单元,第一开关单元,第二开关单元和电容器。 在SRAM单元的读/写操作期间,第一开关单元和第二开关单元导通,使得SRAM单元的两个电源端子分别电连接到V DD和V SS 并且电容器在V DD和V SS之间电连接。 当SRAM单元未被访问时,第一开关单元和第二开关单元断开,并且电容器保持SRAM单元的两个电源端子之间的电压间隙大于预定值。

    Circuit for burn-in operation on a wafer of memory devices
    13.
    发明授权
    Circuit for burn-in operation on a wafer of memory devices 失效
    存储器件晶圆上的老化操作电路

    公开(公告)号:US5995428A

    公开(公告)日:1999-11-30

    申请号:US32627

    申请日:1998-02-27

    CPC classification number: G11C29/50 G01R31/2856 G11C11/401

    Abstract: A circuit is provided for use on a wafer formed with a plurality of dice on each of which a memory device, such as a DRAM (dynamic random access memory) device to perform a burn-in operation on the memory device so as to test the reliability thereof. By this circuit, a plurality of pads are formed in the scribe lines that are used as reference marks in the cutting apart of the dice. These pads are used to transfer an externally generated burn-in enable signal and a DC bias voltage to each memory device. Since the pads for burn-in wiring are formed in the scribe lines, they will not take additional space on the dice where each memory device is formed. The burn-in operation is more convenient, quick, and cost-effective to implement.

    Abstract translation: 提供了一种电路,用于在形成有多个骰子的晶片上使用,每个骰子具有诸如DRAM(动态随机存取存储器)设备的存储器件,以在存储器件上执行老化操作,以便测试 可靠性。 通过该电路,在切割线中用作参考标记的划线中形成多个焊盘。 这些焊盘用于将外部产生的老化使能信号和直流偏置电压传送到每个存储器件。 由于用于老化线的焊盘形成在划线中,所以它们在形成每个存储器件的骰子上不会占用额外的空间。 老化操作更加方便,快捷,性价比高。

    Hidden refresh method and operating method for pseudo SRAM
    14.
    发明授权
    Hidden refresh method and operating method for pseudo SRAM 有权
    伪SRAM的隐藏刷新方法和操作方法

    公开(公告)号:US08576653B2

    公开(公告)日:2013-11-05

    申请号:US13175437

    申请日:2011-07-01

    CPC classification number: G11C11/40615 G11C2211/4013 G11C2211/4061

    Abstract: In an exemplary hidden refresh method for a pseudo SRAM, a system clock is received. A duty-on period of the system clock signal is adapted for performing a data access operation such as write or read operation. A refresh clock signal subjected to the control of the system clock signal is generated. A duty-on period of the refresh clock signal is non-overlapped with the duty-on period of the system clock signal. A refresh control pulse then is triggered by a starting edge of the duty-on period of the refresh clock signal to activate a word line, for performing a refresh operation.

    Abstract translation: 在伪SRAM的示例性隐藏刷新方法中,接收系统时钟。 系统时钟信号的占空比时段适于执行诸如写入或读取操作之类的数据访问操作。 产生经受系统时钟信号控制的刷新时钟信号。 刷新时钟信号的占空比周期与系统时钟信号的占空比周期不重叠。 然后,刷新控制脉冲由刷新时钟信号的占空比周期的起始边沿触发,以激活字线,以执行刷新操作。

    Low leakage current static random access memory
    16.
    发明授权
    Low leakage current static random access memory 失效
    低泄漏电流静态随机存取存储器

    公开(公告)号:US06970374B2

    公开(公告)日:2005-11-29

    申请号:US10708328

    申请日:2004-02-24

    Applicant: Shih-Chin Lin

    Inventor: Shih-Chin Lin

    CPC classification number: G11C11/412

    Abstract: A static random access memory (SRAM) has a plurality of SRAM cells, a first switch unit, a second switch unit, and a capacitor. During read/write operations of the SRAM cells, the first switch unit and the second switch unit are turned on so that two power terminals of the SRAM cells respectively electrically connect to VDD and VSS and that the capacitor electrically connects between VDD and VSS. When the SRAM cells are not accessed, the first switch unit and the second switch unit are turned off and the capacitor keeps a voltage gap between the two power terminals of the SRAM cells greater than a predetermined value.

    Abstract translation: 静态随机存取存储器(SRAM)具有多个SRAM单元,第一开关单元,第二开关单元和电容器。 在SRAM单元的读/写操作期间,第一开关单元和第二开关单元导通,使得SRAM单元的两个电源端子分别电连接到V DD和V SS 并且电容器在V DD和V SS之间电连接。 当SRAM单元未被访问时,第一开关单元和第二开关单元断开,并且电容器保持SRAM单元的两个电源端子之间的电压间隙大于预定值。

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