Scheme for screening weak memory cell
    1.
    发明授权
    Scheme for screening weak memory cell 有权
    弱记忆细胞筛选方案

    公开(公告)号:US07679978B1

    公开(公告)日:2010-03-16

    申请号:US11827542

    申请日:2007-07-11

    IPC分类号: G11C29/00

    摘要: A novel scheme for screening weak memory cell includes a cell coupled to a leakage stress delivery circuitry (LSDC), which, in turn, is coupled to an induced leakage adjustment control (ILAC). The LSDC includes a combination of PMOS transistors, NMOS transistors or both PMOS and NMOS transistors that are controlled by a plurality of stress inducing signals. The PMOS and/or NMOS transistors of the LSDC are coupled to a pair of complementary data lines. The complementary data lines are inputs to a sense amplifier and are outputs of a write driver. The ILAC controls the quantity of the leakage stress applied through the LSDC to the pair of complementary data lines. The ILAC further includes a leakage varying circuitry that is configured to adjust the leakage stress applied to the complementary data lines through the LSDC. The applied leakage stress is adjusted to establish a desired pass/fail threshold and to detect other process variations or defects so that the sense amplifier can be applied to detect the voltage differential during a read operation. The applied leakage stress can also be applied to write driver circuitry such that a write driver along with the applied stress provide enough voltage level to screen difficult-to-write cell from a easy-to-write cell during a write operation. The plurality of stress inducing signals are controlled such that the appropriate leakage stress may be applied to force a leakage to Vdd or Vss associated with the cell through the complementary data lines.

    摘要翻译: 用于筛选弱记忆单元的新颖方案包括耦合到泄漏应力递送电路(LSDC)的细胞,其又耦合到诱导的泄漏调节控制(ILAC)。 LSDC包括由多个应力诱导信号控制的PMOS晶体管,NMOS晶体管或PMOS和NMOS晶体管的组合。 LSDC的PMOS和/或NMOS晶体管耦合到一对补充数据线。 互补数据线是对读出放大器的输入,并且是写入驱动器的输出。 ILAC控制通过LSDC施加到一对互补数据线的泄漏应力的数量。 ILAC还包括泄漏变化电路,其被配置为调节通过LSDC施加到互补数据线的泄漏应力。 调整所施加的泄漏应力以建立期望的通过/失败阈值并检测其他过程变化或缺陷,使得可以应用读出放大器来在读取操作期间检测电压差。 施加的泄漏应力也可以应用于写入驱动器电路,使得写入驱动器与所施加的应力一起提供足够的电压电平,以在写入操作期间从易于写入的单元屏蔽难以写入的单元。 控制多个应力诱导信号,使得可以施加适当的泄漏应力,以通过互补数据线将泄漏强迫与小区相关联的Vdd或Vss。

    Ionomer for use in fuel cells and method of making same
    2.
    发明申请
    Ionomer for use in fuel cells and method of making same 有权
    用于燃料电池的离聚物及其制备方法

    公开(公告)号:US20050079399A1

    公开(公告)日:2005-04-14

    申请号:US10481226

    申请日:2002-07-05

    摘要: The reaction product of a monomer comprising phthalazinone and a phenol group, and at least one sulfonated aromatic compound. The monomer comprising phthalazinone and a phenol group is used in a reaction with the sulfonated aromatic compound to produce ionomers with surprising and highly desirable properties. In one embodiment, the inventive ionomer is a sulfonated poly(phthalazinone ether ketone), hereinafter referred to as sPPEK. In another embodiment, the inventive ionomer is a sulfonated poly(phthalazinone either sulfone), herein after referred to as SPPES. In another embodiment, the inventive ionomer is other sulfonated aromatic polymeric compounds. The invention further includes the formation of these polymers into membranes and their use for polymer electrolyte membrane fuel cells (PEMFC), and in particular for direct methanol fuel cells (DMFC). The inventive polymers may be manufactured in membrane form, and can be dissolved into solution and impregnated into porous substrates to form composite polymer electrolyte membranes with improved properties.

    摘要翻译: 包含酞嗪酮和苯酚基团的单体和至少一种磺化芳族化合物的反应产物。 包含酞嗪酮和苯酚基团的单体用于与磺化芳族化合物的反应以产生具有令人惊讶且非常理想的性质的离聚物。 在一个实施方案中,本发明的离聚物是磺化聚(2,3-二氮杂萘酮酮酮),以下称为sPPEK。 在另一个实施方案中,本发明的离聚物是磺化聚(2,3-二氮杂萘酮砜),在本文中称为SPPES。 在另一个实施方案中,本发明离聚物是其它磺化芳族聚合物。 本发明还包括将这些聚合物形成到膜中以及其用于聚合物电解质膜燃料电池(PEMFC),特别是用于直接甲醇燃料电池(DMFC)的用途。 本发明的聚合物可以以膜形式制造,并且可以溶解在溶液中并浸渍到多孔基材中以形成具有改进性能的复合聚合物电解质膜。

    Folding collapsible steering lock
    3.
    发明授权
    Folding collapsible steering lock 失效
    折叠折叠转向锁

    公开(公告)号:US5471855A

    公开(公告)日:1995-12-05

    申请号:US297853

    申请日:1994-08-30

    申请人: Shwu-Huey Wu

    发明人: Shwu-Huey Wu

    IPC分类号: B60R25/02

    摘要: A folding collapsible steering lock including a retainer bar having a fork at one end for stopping against the steering wheel at one side and a coupling portion at an opposite end, a stop bar having one end pivotably connected to the coupling portion of the retainer bar by a hinge and an opposite end covered with a cap for stopping against the inside of the motor vehicle, and a lock bar moved between a locking position to hold the retainer bar and said stop bar longitudinally aligned and an unlocking position to let the retainer bar and the stop bar be folded up.

    摘要翻译: 一种可折叠的折叠式转向锁,包括一端具有叉子的保持杆,用于在一侧止挡方向盘,在相对端具有联接部分,止动杆的一端通过所述止动杆可枢转地连接到保持杆的联接部分 铰链和相对的端部覆盖有用于停止机动车辆内部的盖,以及锁定杆,其在锁定位置之间移动,以在保持杆和所述止动杆之间纵向对齐的锁定位置和解锁位置以使保持杆和 停止杆折叠起来。

    Thermoplastic copolymer of tetrafluoroethylene and perfluoromethyl vinyl ether and medical devices employing the copolymer

    公开(公告)号:US20060041091A1

    公开(公告)日:2006-02-23

    申请号:US11227658

    申请日:2005-09-14

    IPC分类号: C08F16/24

    CPC分类号: C08F214/18

    摘要: An improved elastomeric material is described comprising an essentially noncross-linkable amorphous copolymer of tetrafluoroethylene (TFE) and perfluoromethyl vinyl ether (PMVE) which is both a thermoplastic and exhibits exceptional mechanical properties. This material is particularly suitable for use in ultra-clean environments, and particularly for use in an implantable device, since it does not contain contaminants that previous thermoset TFE/PMVE copolymers have required. Among the improved properties of the present invention are excellent biocompatibility, high matrix tensile strength, high clarity, high abrasion resistance, high purity, adequate elasticity, and ease of processing due to the thermoplastic, and noncross-linkable structure of the copolymer. The material of the present invention is also a high strength bonding agent particularly suited for bonding porous PTFE to itself or to other porous substances at room or elevated temperatures.

    Low equivalent weight ionomer
    5.
    发明申请
    Low equivalent weight ionomer 有权
    低当量离聚物

    公开(公告)号:US20060241260A1

    公开(公告)日:2006-10-26

    申请号:US11471758

    申请日:2006-06-21

    IPC分类号: C08F16/24

    摘要: An ionomer and a process for forming the ionomet such that the ionomer has (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) high conductivity (greater than 0.13 S/cm). In another embodiment, the invention is an ionomer having (1) low equivalent weight (below 950, preferably between 625 and 850, and most preferably between 675 and 800) and (2) acceptably low hydration (less than about 120 weight percent). These ionomers are capable of being processed into thin film and are extremely well-suited for low humidity or high temperature fuel cell applications.

    摘要翻译: 离子交联聚合物和用于形成离子电离的方法使得离聚物具有(1)低当量(低于950,优选625和850,最优选675和800之间)和(2)高导电率(大于0.13S / 厘米)。 在另一个实施方案中,本发明是具有(1)低当量(低于950,优选625至850,最优选675至800)和(2)可接受的低水合(小于约120重量%)的离聚物。 这些离聚物能够被加工成薄膜,并且非常适用于低湿度或高温燃料电池应用。

    Ionomer for use in fuel cells and method of making same
    7.
    发明授权
    Ionomer for use in fuel cells and method of making same 有权
    用于燃料电池的离聚物及其制备方法

    公开(公告)号:US07405015B2

    公开(公告)日:2008-07-29

    申请号:US10481226

    申请日:2002-07-05

    IPC分类号: H01M8/10 H01M4/86 C08J5/22

    摘要: The reaction product of a monomer comprising phthalazinone and a phenol group, and at least one sulfonated aromatic compound. The monomer comprising phthalazinone and a phenol group is used in a reaction with the sulfonated aromatic compound to produce ionomers with surprising and highly desirable properties. In one embodiment, the inventive ionomer is a sulfonated poly(phthalazinone ether ketone), hereinafter referred to as sPPEK. In another embodiment, the inventive ionomer is a sulfonated poly(phthalazinone either sulfone), herein after referred to as SPPES. In another embodiment, the inventive ionomer is other sulfonated aromatic polymeric compounds. The invention further includes the formation of these polymers into membranes and their use for polymer electrolyte membrane fuel cells (PEMFC), and in particular for direct methanol fuel cells (DMFC). The inventive polymers may be manufactured in membrane form, and can be dissolved into solution and impregnated into porous substrates to form composite polymer electrolyte membranes with improved properties.

    摘要翻译: 包含酞嗪酮和苯酚基团的单体和至少一种磺化芳族化合物的反应产物。 包含酞嗪酮和苯酚基团的单体用于与磺化芳族化合物的反应以产生具有令人惊讶且非常理想的性质的离聚物。 在一个实施方案中,本发明的离聚物是磺化聚(2,3-二氮杂萘酮酮酮),以下称为sPPEK。 在另一个实施方案中,本发明的离聚物是磺化聚(2,3-二氮杂萘酮砜),在本文中称为SPPES。 在另一个实施方案中,本发明离聚物是其它磺化芳族聚合物。 本发明还包括将这些聚合物形成到膜中以及其用于聚合物电解质膜燃料电池(PEMFC),特别是用于直接甲醇燃料电池(DMFC)的用途。 本发明的聚合物可以以膜形式制造,并且可以溶解在溶液中并浸渍到多孔基材中以形成具有改进性能的复合聚合物电解质膜。

    Low Equivalent weight ionomer
    8.
    发明申请
    Low Equivalent weight ionomer 有权
    低当量重量离聚物

    公开(公告)号:US20050165186A1

    公开(公告)日:2005-07-28

    申请号:US11038307

    申请日:2005-01-20

    摘要: An ionomer and a process for forming the ionomer such that the ionomer has (1) low equivalent weight; below 950, preferably between 625 and 850, and most preferably between about 700 and about 800; and (2) high conductivity, (greater than 0.15 S/cm). In an alternative embodiment, the ionomer has (1) low equivalent weight; below 950, preferably between 625 and 850, and most preferably between about 700 and about 800; and (2) acceptably low hydration, (less than about 75 weight percent). These ionomers are adapted to be processed into thin films that have acceptable physical stability. They are thus extremely well-suited for low humidity or high temperature fuel cell applications.

    摘要翻译: 离聚物和用于形成离聚物的方法使得离聚物具有(1)低当量重量; 低于950,优选625至850,最优选约700至约800; 和(2)高导电率(大于0.15S / cm)。 在替代实施方案中,离聚物具有(1)低当量重量; 低于950,优选625至850,最优选约700至约800; 和(2)可接受的低水合(小于约75重量%)。 这些离聚物适于被加工成具有可接受的物理稳定性的薄膜。 因此,它们非常适用于低湿度或高温燃料电池应用。