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    • 5. 发明申请
    • Ferroelectric memory reference generator systems using staging capacitors
    • 铁电存储器参考发电机系统采用分级电容器
    • US20060140017A1
    • 2006-06-29
    • US11100013
    • 2005-04-06
    • Anand SeshadriJarrod EliasonSudhir Madan
    • Anand SeshadriJarrod EliasonSudhir Madan
    • G11C11/22G11C5/14
    • G11C11/22
    • Reference generator systems (108, 130) and methods (200) are presented for providing bitline reference voltages for memory access operations in a ferroelectric memory device (102). The reference generator system (108, 130) comprises a primary capacitance (130), a precharge system (132) that charges the primary capacitance, and a reference system (108) with a plurality of local reference circuits (108a) associated with corresponding array columns that individually comprise a staging capacitance (Cs), a first switching device (S1) coupled between the staging capacitance and the primary capacitance (130), and a second switching device (S2, S3) coupled between the staging capacitance (Cs) and a bitline of the corresponding array column. The first switching device (S1) couples the staging capacitance (Cs) to the precharged primary capacitance (130) and then isolates the precharged staging capacitance (Cs) from the primary capacitance (130), and the second switching device (S2, S3) isolates the staging capacitance (Cs) from the bitline while the staging capacitance Cs is coupled to the primary capacitance (130), and then couples the precharged staging capacitance (Cs) to the bitline to provide a reference voltage to the bitline during the memory access operation.
    • 参考发生器系统(108,130)和方法(200)被提供用于为铁电存储器件(102)中的存储器存取操作提供位线参考电压。 参考发生器系统(108,130)包括初级电容(130),对初级电容充电的预充电系统(132)以及具有多个与相应的电压相关联的多个局部参考电路(108a)的参考系统(108) 单独地包括分级电容(Cs)的阵列列,耦合在所述分级电容和所述初级电容(130)之间的第一开关器件(S1)以及耦合在所述分级电容之间的第二开关器件(S 2,S 3) (Cs)和相应阵列列的位线。 第一开关器件(S1)将分级电容(Cs)耦合到预充电的初级电容(130),然后将预充电的分级电容(Cs)与主电容(130)隔离,并且第二开关器件(S2, S 3)将分级电容(Cs)与位线分离,而分级电容Cs耦合到初级电容(130),然后将预充电分级电容(Cs)耦合到位线,以在位线期间向位线提供参考电压 内存访问操作。
    • 8. 发明授权
    • Ferroelectric non-volatile latch circuits
    • 铁电非易失性锁存电路
    • US6141237A
    • 2000-10-31
    • US351563
    • 1999-07-12
    • Jarrod EliasonWilliam F. Kraus
    • Jarrod EliasonWilliam F. Kraus
    • G11C11/22H01L21/8246H01L27/105H03K3/356
    • G11C11/22
    • A non-volatile ferroelectric latch includes a sense amplifier having at least one input/output coupled to a bit-line node, a ferroelectric storage capacitor coupled between a plate-line node and the bit-line node, and a load element coupled to the bit-line node. The sense amplifier further includes a second input/output coupled to a second bit-line node and the latch further includes a second ferroelectric storage capacitor coupled between a second plate-line node and the second bit-sine node, and a second load element coupled to the second bit-line node. The load element includes a dynamic, switched ferroelectric capacitor a static, nonswitched ferroelectric capacitor, a linear capacitor, or even a resistive load.
    • 非挥发性铁电锁存器包括读出放大器,其具有耦合到位线节点的至少一个输入/输出,耦合在板状线节点和位线节点之间的铁电存储电容器以及耦合到该位线线路节点的负载元件 位线节点。 感测放大器还包括耦合到第二位线节点的第二输入/输出,并且锁存器还包括耦合在第二板状线节点和第二位正弦节点之间的第二铁电存储电容器,以及耦合到第二负载元件的第二负载元件 到第二位线节点。 负载元件包括动态的,开关的铁电电容器,静态的,非开关的铁电电容器,线性电容器或甚至电阻负载。