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    • 1. 发明申请
    • METHOD AND APPARATUS FOR IMPROVING SRAM CELL STABILTY BY USING BOOSTED WORD LINES
    • 通过使用增强字线改善SRAM单元稳定性的方法和装置
    • US20080225611A1
    • 2008-09-18
    • US12130472
    • 2008-05-30
    • Hussein I. HanafiRichard Q. Williams
    • Hussein I. HanafiRichard Q. Williams
    • G11C7/00
    • G11C7/02G11C8/08G11C11/413
    • The present invention relates to methods and apparatus for improving the stability of static random access memory (SRAM) cells by using boosted word lines. Specifically, a boosted word line voltage (Vdd′) is applied to the word line of a selected SRAM cell, while such a boosted word line voltage (Vdd′) is sufficiently higher than the power supply voltage (Vdd) of the SRAM cell so as to improve the cell stability to a desired level. Specifically, a specific boosted word line voltage is predetermined for each SRAM cell based on the specific cell configuration, by using a circuit simulation program, such as the BERKELEY-SPICE simulation program. A boost voltage generator is then used to apply the predetermined boosted word line voltage to the selected SRAM cell.
    • 本发明涉及通过使用增强字线来提高静态随机存取存储器(SRAM)单元的稳定性的方法和装置。 具体地说,将升压的字线电压(Vdd')施加到所选择的SRAM单元的字线,而这样的升压字线电压(Vdd')比SRAM单元的电源电压(Vdd)充分高 以将细胞稳定性提高到所需水平。 具体地,通过使用例如BERKELEY-SPICE仿真程序的电路仿真程序,基于特定单元配置为每个SRAM单元预定特定的升压字线电压。 然后使用升压电压发生器将预定的升压字线电压施加到所选择的SRAM单元。
    • 2. 发明授权
    • Method and apparatus for improving SRAM cell stability by using boosted word lines
    • 通过使用升压字线来提高SRAM单元稳定性的方法和装置
    • US07934181B2
    • 2011-04-26
    • US12130472
    • 2008-05-30
    • Hussein I. HanafiRichard Q. Williams
    • Hussein I. HanafiRichard Q. Williams
    • G06F17/50G11C16/06G11C7/00G11C8/00
    • G11C7/02G11C8/08G11C11/413
    • The present invention relates to methods and apparatus for improving the stability of static random access memory (SRAM) cells by using boosted word lines. Specifically, a boosted word line voltage (Vdd′) is applied to the word line of a selected SRAM cell, while such a boosted word line voltage (Vdd′) is sufficiently higher than the power supply voltage (Vdd) of the SRAM cell so as to improve the cell stability to a desired level. Specifically, a specific boosted word line voltage is predetermined for each SRAM cell based on the specific cell configuration, by using a circuit simulation program, such as the BERKELEY-SPICE simulation program. A boost voltage generator is then used to apply the predetermined boosted word line voltage to the selected SRAM cell.
    • 本发明涉及通过使用增强字线来提高静态随机存取存储器(SRAM)单元的稳定性的方法和装置。 具体地说,将升压的字线电压(Vdd')施加到所选择的SRAM单元的字线,而这样的升压字线电压(Vdd')比SRAM单元的电源电压(Vdd)充分高 以将细胞稳定性提高到所需水平。 具体地,通过使用例如BERKELEY-SPICE仿真程序的电路仿真程序,基于特定单元配置为每个SRAM单元预定特定的升压字线电压。 然后使用升压电压发生器将预定的升压字线电压施加到所选择的SRAM单元。
    • 4. 发明授权
    • Method and apparatus for improving SRAM cell stability by using boosted word lines
    • 通过使用升压字线来提高SRAM单元稳定性的方法和装置
    • US07512908B2
    • 2009-03-31
    • US11450610
    • 2006-06-09
    • Hussein I. HanafiRichard Q. Williams
    • Hussein I. HanafiRichard Q. Williams
    • G06F17/50G06F9/45G11C16/06G11C7/00G11C8/00
    • G11C7/02G11C8/08G11C11/413
    • The present invention relates to methods and apparatus for improving the stability of static random access memory (SRAM) cells by using boosted word lines. Specifically, a boosted word line voltage (Vdd′) is applied to the word line of a selected SRAM cell, while such a boosted word line voltage (Vdd′) is sufficiently higher than the power supply voltage (Vdd) of the SRAM cell so as to improve the cell stability to a desired level. Specifically, a specific boosted word line voltage is predetermined for each SRAM cell based on the specific cell configuration, by using a circuit simulation program, such as the BERKELEY-SPICE simulation program. A boost voltage generator is then used to apply the predetermined boosted word line voltage to the selected SRAM cell.
    • 本发明涉及通过使用增强字线来提高静态随机存取存储器(SRAM)单元的稳定性的方法和装置。 具体地说,将升压的字线电压(Vdd')施加到所选择的SRAM单元的字线,而这样的升压字线电压(Vdd')比SRAM单元的电源电压(Vdd)充分高 以将细胞稳定性提高到所需水平。 具体地,通过使用例如BERKELEY-SPICE仿真程序的电路仿真程序,基于特定单元配置为每个SRAM单元预定特定的升压字线电压。 然后使用升压电压发生器将预定的升压字线电压施加到所选择的SRAM单元。
    • 5. 发明申请
    • Method and apparatus for improving SRAM cell stability by using boosted word lines
    • 通过使用升压字线来提高SRAM单元稳定性的方法和装置
    • US20070291528A1
    • 2007-12-20
    • US11450610
    • 2006-06-09
    • Hussein I. HanafiRichard Q. Williams
    • Hussein I. HanafiRichard Q. Williams
    • G11C11/00G11C8/00G11C7/00
    • G11C7/02G11C8/08G11C11/413
    • The present invention relates to methods and apparatus for improving the stability of static random access memory (SRAM) cells by using boosted word lines. Specifically, a boosted word line voltage (Vdd′) is applied to the word line of a selected SRAM cell, while such a boosted word line voltage (Vdd′) is sufficiently higher than the power supply voltage (Vdd) of the SRAM cell so as to improve the cell stability to a desired level. Specifically, a specific boosted word line voltage is predetermined for each SRAM cell based on the specific cell configuration, by using a circuit simulation program, such as the BERKELEY-SPICE simulation program. A boost voltage generator is then used to apply the predetermined boosted word line voltage to the selected SRAM cell.
    • 本发明涉及通过使用增强字线来提高静态随机存取存储器(SRAM)单元的稳定性的方法和装置。 具体地说,将升压的字线电压(Vdd')施加到所选择的SRAM单元的字线,而这样的升压字线电压(Vdd')比SRAM单元的电源电压(Vdd)充分高 以将细胞稳定性提高到所需水平。 具体地,通过使用例如BERKELEY-SPICE仿真程序的电路仿真程序,基于特定单元配置为每个SRAM单元预定特定的升压字线电压。 然后使用升压电压发生器将预定的升压字线电压施加到所选择的SRAM单元。
    • 9. 发明授权
    • Doped single crystal silicon silicided eFuse
    • 掺杂单晶硅硅片eFuse
    • US07572724B2
    • 2009-08-11
    • US12043226
    • 2008-03-06
    • Edward J. NowakJed H. RankinWilliam R. TontiRichard Q. Williams
    • Edward J. NowakJed H. RankinWilliam R. TontiRichard Q. Williams
    • H01L21/00
    • H01L27/10H01L23/5256H01L2924/0002H01L2924/3011H01L2924/00
    • An eFuse begins with a single crystal silicon-on-insulator (SOI) structure that has a single crystal silicon layer on a first insulator layer. The single crystal silicon layer is patterned into a strip. Before or after the patterning, the single crystal silicon layer is doped with one or more impurities. At least an upper portion of the single crystal silicon layer is then silicided to form a silicided strip. In one embodiment the entire single crystal silicon strip is silicided to create a silicide strip. Second insulator(s) is/are formed on the silicide strip, so as to isolate the silicided strip from surrounding structures. Before or after forming the second insulators, the method forms electrical contacts through the second insulators to ends of the silicided strip. By utilizing a single crystal silicon strip, any form of semiconductor, such as a diode, conductor, insulator, transistor, etc. can form the underlying portion of the fuse structure. The overlying silicide material allows the fuse to act as a conductor in its unprogrammed state. However, contrary to metal or polysilicon based eFuses which only comprise an insulator in the programmed state, when the inventive eFuse is programmed (and the silicide is moved or broken) the underlying semiconductor structure operates as an active semiconductor device.
    • eFuse从在第一绝缘体层上具有单晶硅层的单晶硅绝缘体(SOI)结构开始。 将单晶硅层图案化成条带。 在构图之前或之后,单晶硅层掺杂有一种或多种杂质。 至少单晶硅层的上部然后被硅化以形成硅化带。 在一个实施例中,整个单晶硅带被硅化以产生硅化物条。 在硅化物条上形成第二绝缘体,从而将硅化物带与周围结构隔离。 在形成第二绝缘体之前或之后,该方法通过第二绝缘体形成与硅化带的端部的电接触。 通过使用单晶硅条,任何形式的半导体,例如二极管,导体,绝缘体,晶体管等都可以形成熔丝结构的下面部分。 上覆的硅化物材料允许熔丝作为未编程状态的导体。 然而,与仅编程状态的仅包含绝缘体的金属或多晶硅基eFuse相反,当本发明的eFuse被编程(并且硅化物被移动或断开)时,下面的半导体结构作为有源半导体器件工作。