Implementing local evaluation of domino read SRAM with enhanced SRAM cell stability with minimized area usage
    1.
    发明授权
    Implementing local evaluation of domino read SRAM with enhanced SRAM cell stability with minimized area usage 失效
    实现对多米诺骨牌SRAM的局部评估,具有增强的SRAM单元稳定性,同时最小化区域使用率

    公开(公告)号:US07724586B2

    公开(公告)日:2010-05-25

    申请号:US12195151

    申请日:2008-08-20

    IPC分类号: G11C7/06 G06F17/50

    CPC分类号: G11C11/413

    摘要: A method and circuit for implementing domino static random access memory (SRAM) local evaluation with enhanced SRAM cell stability, and a design structure on which the subject circuit resides are provided. A SRAM local evaluation circuit enabling a read and write operations of an associated SRAM cell group includes true and complement bitlines, true and complement write data propagation inputs, a precharge signal, and a precharge write signal. A respective precharge device is connected between a voltage supply VDD and the true bitline and the complement bitline. A first passgate device is connected between the complement bitline and the true write data propagation input. A second passgate device is connected between the true bitline and the complement write data propagation input. The precharge write signal disables the passgate devices during a read operation. During write operations, the precharge write signal enables the passgate devices.

    摘要翻译: 一种用于实现具有增强的SRAM单元稳定性的多米诺骨牌静态随机存取存储器(SRAM)局部评估的方法和电路,以及提供主题电路所在的设计结构。 实现相关SRAM单元组的读和写操作的SRAM本地评估电路包括真和补补位线,真和补写写数据传播输入,预充电信号和预充电写信号。 相应的预充电装置连接在电压源VDD与真位线和补码位线之间。 第一传递门装置连接在补码位线和真实写入数据传播输入端之间。 第二个通路装置连接在真位线和补码写入数据传播输入之间。 在读取操作期间,预充电写信号禁用通路器件。 在写入操作期间,预充电写入信号使能通路装置。

    Implementing Local Evaluation of Domino Read SRAM With Enhanced SRAM Cell Stability and Enhanced Area Usage
    2.
    发明申请
    Implementing Local Evaluation of Domino Read SRAM With Enhanced SRAM Cell Stability and Enhanced Area Usage 失效
    实现具有增强的SRAM单元稳定性和增强区域使用的Domino读取SRAM的本地评估

    公开(公告)号:US20100046278A1

    公开(公告)日:2010-02-25

    申请号:US12195151

    申请日:2008-08-20

    IPC分类号: G11C11/00 G11C7/00

    CPC分类号: G11C11/413

    摘要: A method and circuit for implementing domino static random access memory (SRAM) local evaluation with enhanced SRAM cell stability, and a design structure on which the subject circuit resides are provided. A SRAM local evaluation circuit enabling a read and write operations of an associated SRAM cell group includes true and complement bitlines, true and complement write data propagation inputs, a precharge signal, and a precharge write signal. A respective precharge device is connected between a voltage supply VDD and the true bitline and the complement bitline. A first passgate device is connected between the complement bitline and the true write data propagation input. A second passgate device is connected between the true bitline and the complement write data propagation input. The precharge write signal disables the passgate devices during a read operation. During write operations, the precharge write signal enables the passgate devices.

    摘要翻译: 一种用于实现具有增强的SRAM单元稳定性的多米诺骨牌静态随机存取存储器(SRAM)局部评估的方法和电路,以及提供主题电路所在的设计结构。 实现相关SRAM单元组的读和写操作的SRAM本地评估电路包括真和补补位线,真和补写写数据传播输入,预充电信号和预充电写信号。 相应的预充电装置连接在电压源VDD与真位线和补码位线之间。 第一传递门装置连接在补码位线和真实写入数据传播输入端之间。 第二个通路装置连接在真位线和补码写入数据传播输入之间。 在读取操作期间,预充电写信号禁用通路器件。 在写入操作期间,预充电写入信号使能通路装置。

    High performance read bypass test for SRAM circuits
    3.
    发明授权
    High performance read bypass test for SRAM circuits 失效
    SRAM电路的高性能读取旁路测试

    公开(公告)号:US07751266B2

    公开(公告)日:2010-07-06

    申请号:US12146777

    申请日:2008-06-26

    IPC分类号: G11C29/00

    摘要: A design structure embodied in a machine readable medium used in a design process and an integrated circuit for high performance SRAM (Static Random Access Memory) read bypass for BIST (built-in self-test). The design structure and integrated structure includes a dynamic to static conversion unit for a read output of an SRAM array, and a test bypass unit integrated into the dynamic to static conversion unit, so as to allow the read output of the SRAM array to pass through in a non-test mode without impacting performance, and bypass the read output of the SRAM array and allow a test signal to pass though in a test mode.

    摘要翻译: 在设计过程中使用的机器可读介质中体现的设计结构和用于BIST(内置自检)的高性能SRAM(静态随机存取存储器)读取旁路的集成电路。 该设计结构和集成结构包括用于SRAM阵列的读取输出的动态到静态转换单元和集成到动态到静态转换单元中的测试旁路单元,以便允许SRAM阵列的读取输出通过 在不影响性能的非测试模式下,并绕过SRAM阵列的读取输出,并允许测试信号在测试模式下通过。

    Design structure embodied in a machine readable medium for implementing SRAM cell write performance evaluation
    5.
    发明授权
    Design structure embodied in a machine readable medium for implementing SRAM cell write performance evaluation 失效
    体现在用于实现SRAM单元写入性能评估的机器可读介质中的设计结构

    公开(公告)号:US07788554B2

    公开(公告)日:2010-08-31

    申请号:US11873173

    申请日:2007-10-16

    IPC分类号: G11C29/00 G11C7/00

    摘要: A design structure embodied in a machine readable medium for implementing static random access memory (SRAM) cell write performance evaluation is provided. A SRAM core includes each wordline connected to only one bit column. A ring oscillator circuit is used to generate wordline pulses. A state machine controls operations for the SRAM cell write performance evaluation circuit including the ring oscillator circuit and the SRAM core. A control signal is applied to the state machine to select a first write operation, where the circuit simultaneously writes all the cells to a known state with wide wordlines to ensure all cells are written. Then a second write operation is selected, and all the wordlines are launched simultaneously to write the cells to the opposite state. From these write operations, a required wordline pulse width to write the cell is identified.

    摘要翻译: 提供了体现在用于实现静态随机存取存储器(SRAM)单元写入性能评估的机器可读介质中的设计结构。 SRAM内核包括只连接到一个位列的每个字线。 环形振荡器电路用于产生字线脉冲。 状态机控制包括环形振荡器电路和SRAM内核的SRAM单元写入性能评估电路的操作。 将控制信号施加到状态机以选择第一写入操作,其中电路同时将所有单元格写入具有宽字线的已知状态,以确保所有单元都被写入。 然后选择第二次写入操作,同时启动所有字线,将单元写入相反的状态。 从这些写入操作中,识别要写入单元的所需字线脉冲宽度。

    APPARATUS FOR IMPLEMENTING SRAM CELL WRITE PERFORMANCE EVALUATION
    6.
    发明申请
    APPARATUS FOR IMPLEMENTING SRAM CELL WRITE PERFORMANCE EVALUATION 失效
    用于实现SRAM单元写入性能评估的设备

    公开(公告)号:US20090116298A1

    公开(公告)日:2009-05-07

    申请号:US12351920

    申请日:2009-01-12

    IPC分类号: G11C7/00

    摘要: A SRAM cell write performance evaluation circuit includes a SRAM core where each wordline is connected to only one bit column. A ring oscillator circuit is used to generate wordline pulses. A state machine controls operations for the SRAM cell write performance evaluation circuit including the ring oscillator circuit and the SRAM core. A control signal is applied to the state machine to select a first write operation, where the circuit simultaneously writes all the cells to a known state with wide wordlines to ensure all cells are written. Then a second write operation is selected, and all the wordlines are launched simultaneously to write the cells to the opposite state. From these write operations, a required wordline pulse width to write the cell is identified.

    摘要翻译: SRAM单元写入性能评估电路包括SRAM核心,其中每个字线仅连接到一个位列。 环形振荡器电路用于产生字线脉冲。 状态机控制包括环形振荡器电路和SRAM内核的SRAM单元写入性能评估电路的操作。 将控制信号施加到状态机以选择第一写入操作,其中电路同时将所有单元格写入具有宽字线的已知状态,以确保所有单元都被写入。 然后选择第二次写入操作,同时启动所有字线,将单元写入相反的状态。 从这些写入操作中,识别要写入单元的所需字线脉冲宽度。

    Apparatus for implementing SRAM cell write performance evaluation
    7.
    发明授权
    Apparatus for implementing SRAM cell write performance evaluation 失效
    用于实现SRAM单元写入性能评估的装置

    公开(公告)号:US07768851B2

    公开(公告)日:2010-08-03

    申请号:US12351920

    申请日:2009-01-12

    IPC分类号: G11C7/00

    摘要: A SRAM cell write performance evaluation circuit includes a SRAM core where each wordline is connected to only one bit column. A ring oscillator circuit is used to generate wordline pulses. A state machine controls operations for the SRAM cell write performance evaluation circuit including the ring oscillator circuit and the SRAM core. A control signal is applied to the state machine to select a first write operation, where the circuit simultaneously writes all the cells to a known state with wide wordlines to ensure all cells are written. Then a second write operation is selected, and all the wordlines are launched simultaneously to write the cells to the opposite state. From these write operations, a required wordline pulse width to write the cell is identified.

    摘要翻译: SRAM单元写入性能评估电路包括SRAM核心,其中每个字线仅连接到一个位列。 环形振荡器电路用于产生字线脉冲。 状态机控制包括环形振荡器电路和SRAM内核的SRAM单元写入性能评估电路的操作。 将控制信号施加到状态机以选择第一写入操作,其中电路同时将所有单元格写入具有宽字线的已知状态,以确保所有单元都被写入。 然后选择第二次写入操作,同时启动所有字线,将单元写入相反的状态。 从这些写入操作中,识别要写入单元的所需字线脉冲宽度。

    Method and Enhanced SRAM Redundancy Circuit for Reducing Wiring and Required Number of Redundant Elements
    8.
    发明申请
    Method and Enhanced SRAM Redundancy Circuit for Reducing Wiring and Required Number of Redundant Elements 审中-公开
    方法和增强型SRAM冗余电路,用于减少接线和所需的冗余元件数量

    公开(公告)号:US20080112219A1

    公开(公告)日:2008-05-15

    申请号:US11868575

    申请日:2007-10-08

    IPC分类号: G11C11/34

    CPC分类号: G11C29/846

    摘要: A method and enhanced Static Random Access Memory (SRAM) redundancy circuit reduce wiring and the required number of redundant elements, and a design structure on which the subject SRAM redundancy circuit resides is provided. A bitline redundancy mechanism allows the swapping of a pair of bitlines for a redundant pair of bit columns. Two of the adjacent bitlines are swapped out at a time, one even and one odd. The swap is accomplished by steering the data around the bad columns and adding redundant columns on the end that are steered in when needed.

    摘要翻译: 一种方法和增强的静态随机存取存储器(SRAM)冗余电路减少了布线和所需数量的冗余元件,并且提供了存在被摄体SRAM冗余电路的设计结构。 位线冗余机制允许对一对位列进行交换。 两个相邻的位线一次被换出,一个偶数和一个奇数。 交换是通过围绕不良列操作数据进行转换,并在需要时引导的末尾添加冗余列。

    High Performance Read Bypass Test for SRAM Circuits
    9.
    发明申请
    High Performance Read Bypass Test for SRAM Circuits 失效
    SRAM电路的高性能读取旁路测试

    公开(公告)号:US20090323445A1

    公开(公告)日:2009-12-31

    申请号:US12146777

    申请日:2008-06-26

    IPC分类号: G11C29/00

    摘要: A design structure embodied in a machine readable medium used in a design process and an integrated circuit for high performance SRAM (Static Random Access Memory) read bypass for BIST (built-in self-test). The design structure and integrated structure includes a dynamic to static conversion unit for a read output of an SRAM array, and a test bypass unit integrated into the dynamic to static conversion unit, so as to allow the read output of the SRAM array to pass through in a non-test mode without impacting performance, and bypass the read output of the SRAM array and allow a test signal to pass though in a test mode.

    摘要翻译: 在设计过程中使用的机器可读介质中体现的设计结构和用于BIST(内置自检)的高性能SRAM(静态随机存取存储器)读取旁路的集成电路。 该设计结构和集成结构包括用于SRAM阵列的读取输出的动态到静态转换单元和集成到动态到静态转换单元中的测试旁路单元,以便允许SRAM阵列的读取输出通过 在不影响性能的非测试模式下,并绕过SRAM阵列的读取输出,并允许测试信号在测试模式下通过。

    Method for implementing SRAM cell write performance evaluation
    10.
    发明授权
    Method for implementing SRAM cell write performance evaluation 失效
    实现SRAM单元写入性能评估的方法

    公开(公告)号:US07505340B1

    公开(公告)日:2009-03-17

    申请号:US11845866

    申请日:2007-08-28

    IPC分类号: G11C7/00

    摘要: A method implements static random access memory (SRAM) cell write performance evaluation. A SRAM cell write performance evaluation circuit includes a SRAM core where each wordline is connected to only one bit column. A ring oscillator circuit is used to generate wordline pulses. A state machine controls operations for the SRAM cell write performance evaluation circuit including the ring oscillator circuit and the SRAM core. A control signal is applied to the state machine to select a first write operation, where the circuit simultaneously writes all the cells to a known state with wide wordlines to ensure all cells are written. Then a second write operation is selected, and all the wordlines are launched simultaneously to write the cells to the opposite state. From these write operations, a required wordline pulse width to write the cell is identified.

    摘要翻译: 一种方法实现了静态随机存取存储器(SRAM)单元写入性能评估。 SRAM单元写入性能评估电路包括SRAM核心,其中每个字线仅连接到一个位列。 环形振荡器电路用于产生字线脉冲。 状态机控制包括环形振荡器电路和SRAM内核的SRAM单元写入性能评估电路的操作。 控制信号被施加到状态机以选择第一写入操作,其中电路同时将所有单元格写入具有宽字线的已知状态,以确保所有单元被写入。 然后选择第二次写入操作,同时启动所有字线,将单元写入相反的状态。 从这些写入操作中,识别要写入单元的所需字线脉冲宽度。