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    • 1. 发明申请
    • APPARATUS AND METHOD FOR TRIMMING REFERENCE CELL IN SEMICONDUCTOR MEMORY DEVICE
    • 用于在半导体存储器件中修剪参考电池的装置和方法
    • US20130100734A1
    • 2013-04-25
    • US13276779
    • 2011-10-19
    • Chung-Shan KUO
    • Chung-Shan KUO
    • G11C16/10
    • G11C16/10G11C16/28
    • A method of trimming a reference cell in a semiconductor memory device comprises the steps of: generating a reference current based on a bias voltage applied to the reference cell; generating a first current and a second current based on the value of a control voltage and the resistance of a precision resistor disposed outside the semiconductor memory device; comparing the reference current with the first current; comparing the reference current with the second current; programming the reference cell if the value of the reference current is greater than that of the first current; and erasing the reference cell if the value of the reference current is less than that of the second current. The value of the second current is less than that of the first current.
    • 一种在半导体存储器件中修整参考单元的方法包括以下步骤:基于施加到参考单元的偏置电压产生参考电流; 基于控制电压的值和设置在半导体存储器件外部的精密电阻器的电阻产生第一电流和第二电流; 将参考电流与第一电流进行比较; 将参考电流与第二电流进行比较; 如果参考电流的值大于第一个电流的值,则编程参考单元; 并且如果参考电流的值小于第二电流的值,则擦除参考单元。 第二电流的值小于第一电流的值。
    • 2. 发明申请
    • FLASH MEMORY DEVICE AND ASSOCIATED CHARGE PUMP CIRCUIT
    • 闪存存储器和相关的充电泵电路
    • US20120287717A1
    • 2012-11-15
    • US13105467
    • 2011-05-11
    • Chung Shan Kuo
    • Chung Shan Kuo
    • G11C11/21G05F3/02
    • H02M3/07G11C5/145G11C16/30H02M2001/0077H02M2001/008H02M2003/077
    • A charge pump circuit comprises a first booster set, a second booster group, and a detecting circuit. The first booster set receives a supply voltage and generates a first output voltage. The detecting circuit generates a detecting signal depending on the voltage level of the first output voltage. The second booster group receives the supply voltage and generates the first output voltage or a second output voltage according to the detecting signal. The second booster group is composed of a plurality of booster sets connected in parallel, wherein each booster set comprises a plurality of charge pump stages and a plurality of switch units. The number of serially-connected charge pump stages of each booster set in the second booster group is controlled by the plurality of switch units according to the stable voltage levels of the first and second output voltages.
    • 电荷泵电路包括第一升压器组,第二升压组和检测电路。 第一升压器组接收电源电压并产生第一输出电压。 检测电路根据第一输出电压的电压电平产生检测信号。 第二升压组根据检测信号接收电源电压并产生第一输出电压或第二输出电压。 第二升压组由并联连接的多个升压组构成,其中每个升压组包括多个电荷泵级和多个开关单元。 根据第一和第二输出电压的稳定电压电平,由多个开关单元控制在第二升压组中设置的每个升压器的串联连接的电荷泵级数。
    • 3. 发明授权
    • Bit line precharge circuit
    • 位线预充电电路
    • US07542352B1
    • 2009-06-02
    • US12208348
    • 2008-09-11
    • Chung-Shan Kuo
    • Chung-Shan Kuo
    • G11C16/06
    • G11C16/24G11C16/28
    • A bit line precharge circuit is provided by the present invention. The bit line precharge circuit groups the precharge sub-circuits to share one drain bias controller. The drain bias controller has an inverter and a NMOS clamping transistor to form a negative feedback loop, to quickly precharge bit lines. When operating in read operation, only one drain bias controller is needed. Therefore, it can greatly save the layout area and operating power consumption without any extra dummy bit line or layout expansion.
    • 本发明提供位线预充电电路。 位线预充电电路将预充电子电路组合以共享一个漏极偏置控制器。 漏极偏置控制器具有反相器和NMOS钳位晶体管,以形成负反馈环路,以快速对位线进行预充电。 在读操作中工作时,只需要一个漏极偏置控制器。 因此,可以大大节省布局面积和工作功耗,无需任何额外的虚拟位线或布局扩展。
    • 8. 发明授权
    • Charge pump circuit
    • 电荷泵电路
    • US07443230B2
    • 2008-10-28
    • US11463597
    • 2006-08-10
    • Chung-Zen ChenChung-Shan KuoYang-Chieh Lin
    • Chung-Zen ChenChung-Shan KuoYang-Chieh Lin
    • G05F1/10
    • H02M3/07
    • A charge pump circuit including a plurality of controlled charge pumps (CPs), a plurality of uncontrolled CPs, a plurality of control units, and an output unit is provided. Each controlled CP determines whether to provide charges to a node by a control signal, and each uncontrolled CP constantly provides charges to the node. The higher the node voltage at the node is, the more the controlled CPs not providing charge to the node are, so as to suppress the voltage of the node. In addition, the output unit regulates and outputs an output voltage according to the node voltage by the negative feedback.
    • 提供了包括多个受控电荷泵(CP),多个不受控制的CP,多个控制单元和输出单元的电荷泵电路。 每个受控CP确定是否通过控制信号向节点提供费用,并且每个不受控制的CP不断向节点提供费用。 节点处的节点电压越高,对节点不提供电荷的受控CP越多,以抑制节点的电压。 此外,输出单元通过负反馈调节并输出根据节点电压的输出电压。
    • 9. 发明授权
    • Programming method for nonvolatile semiconductor memory device
    • 非易失性半导体存储器件的编程方法
    • US08391069B2
    • 2013-03-05
    • US13105539
    • 2011-05-11
    • Chung Shan KuoZi Qiang Ku
    • Chung Shan KuoZi Qiang Ku
    • G11C11/34G11C16/04
    • G11C11/5642G11C16/10G11C16/3454
    • A method for programming a plurality of memory cells of a nonvolatile semiconductor memory device comprises the steps of: sequentially performing a plurality of divide-by-2 operations on the plurality of memory cells; generating a plurality of reduced groups from the memory cells after each of the divide-by-2 operations is performed; sequentially programming the memory cells of each reduced group; generating a final group after a final divide-by-2 operation is performed; programming the memory cells of the final group; and verifying whether the memory cells of the final group are completely programmed. The memory cells of the final group are composed of all the memory cells of the nonvolatile semiconductor memory device and the verifying step is only performed after the step of programming the memory cells of the final group.
    • 一种用于编程非易失性半导体存储器件的多个存储单元的方法包括以下步骤:在多个存储器单元上顺序执行多个除以2的运算; 在执行每次分割2操作之后,从存储器单元生成多个缩减组; 对每个还原组的存储单元进行顺序编程; 在执行最后的除2操作之后产生最终组; 编程最后一组的记忆单元; 并验证最终组的存储单元是否被完全编程。 最终组的存储单元由非易失性半导体存储器件的所有存储单元构成,并且验证步骤仅在编程最终组的存储单元的步骤之后执行。
    • 10. 发明授权
    • Flash memory device and associated charge pump circuit
    • 闪存器件和相关的电荷泵电路
    • US08848476B2
    • 2014-09-30
    • US13105467
    • 2011-05-11
    • Chung Shan Kuo
    • Chung Shan Kuo
    • G11C5/14H02M3/07H02M1/00
    • H02M3/07G11C5/145G11C16/30H02M2001/0077H02M2001/008H02M2003/077
    • A charge pump circuit comprises a first booster set, a second booster group, and a detecting circuit. The first booster set receives a supply voltage and generates a first output voltage. The detecting circuit generates a detecting signal depending on the voltage level of the first output voltage. The second booster group receives the supply voltage and generates the first output voltage or a second output voltage according to the detecting signal. The second booster group is composed of a plurality of booster sets connected in parallel, wherein each booster set comprises a plurality of charge pump stages and a plurality of switch units. The number of serially-connected charge pump stages of each booster set in the second booster group is controlled by the plurality of switch units according to the stable voltage levels of the first and second output voltages.
    • 电荷泵电路包括第一升压器组,第二升压组和检测电路。 第一升压器组接收电源电压并产生第一输出电压。 检测电路根据第一输出电压的电压电平产生检测信号。 第二升压组根据检测信号接收电源电压并产生第一输出电压或第二输出电压。 第二升压组由并联连接的多个升压组构成,其中每个升压组包括多个电荷泵级和多个开关单元。 根据第一和第二输出电压的稳定电压电平,由多个开关单元控制在第二升压组中设置的每个升压器的串联连接的电荷泵级数。