公开(公告)号：US20120008410A1

公开(公告)日：2012-01-12

申请号：US13016732

申请日：2011-01-28

申请人： Jonathan H. Huynh ,  Feng Pan ,  Viswakiran Popuri ,  Marco Cazzaniga

发明人： Jonathan H. Huynh ,  Feng Pan ,  Viswakiran Popuri ,  Marco Cazzaniga

IPC分类号： G11C16/06

CPC分类号： G11C29/02 ,  G11C16/04 ,  G11C29/025 ,  G11C29/028 ,  G11C2029/5006

摘要： Techniques and corresponding circuitry are presented for the detection of wordline leakage in a memory array. In an exemplary embodiment, a capacitive voltage divider is used to translate the high voltage drop to low voltage drop that can be compared with a reference voltage to determine the voltage drop due to leakage. An on-chip self calibration method can help assure the accuracy of this technique for detecting leakage limit. In other embodiments, the current drawn by a reference array, where a high voltage is applied to the array with all wordlines non-selected, is compared to the current drawn by an array where the high voltage is applied and one or more selected wordlines. In these current based embodiments, the reference array can be a different array, or the same array as that one selected for testing.

摘要翻译： 提供技术和相应的电路用于检测存储器阵列中的字线泄漏。 在示例性实施例中，使用电容分压器将高压降转换成可与参考电压进行比较的低电压降，以确定由于泄漏引起的电压降。 片上自校准方法可以帮助确保这种检测泄漏极限的技术的准确性。 在其他实施例中，将由未被选择的所有字线施加到阵列的高电压的参考阵列绘制的电流与施加高电压的阵列和一个或多个选定的字线所绘制的电流进行比较。 在这些基于当前的实施例中，参考阵列可以是不同的阵列，或与用于测试所选择的阵列相同的阵列。

公开(公告)号：US08514630B2

公开(公告)日：2013-08-20

申请号：US13016732

申请日：2011-01-28

申请人： Jonathan H. Huynh ,  Feng Pan ,  Viswakiran Popuri ,  Marco Cazzaniga

发明人： Jonathan H. Huynh ,  Feng Pan ,  Viswakiran Popuri ,  Marco Cazzaniga

IPC分类号： G11C11/34

CPC分类号： G11C29/02 ,  G11C16/04 ,  G11C29/025 ,  G11C29/028 ,  G11C2029/5006

摘要： Techniques and corresponding circuitry are presented for the detection of wordline leakage in a memory array. In an exemplary embodiment, a capacitive voltage divider is used to translate the high voltage drop to low voltage drop that can be compared with a reference voltage to determine the voltage drop due to leakage. An on-chip self calibration method can help assure the accuracy of this technique for detecting leakage limit. In other embodiments, the current drawn by a reference array, where a high voltage is applied to the array with all wordlines non-selected, is compared to the current drawn by an array where the high voltage is applied and one or more selected wordlines. In these current based embodiments, the reference array can be a different array, or the same array as that one selected for testing.

摘要翻译： 提供技术和相应的电路用于检测存储器阵列中的字线泄漏。 在示例性实施例中，使用电容分压器将高压降转换成可与参考电压进行比较的低电压降，以确定由于泄漏引起的电压降。 片上自校准方法可以帮助确保这种检测泄漏极限的技术的准确性。 在其他实施例中，将由未被选择的所有字线施加到阵列的高电压的参考阵列绘制的电流与施加高电压的阵列和一个或多个选定的字线所绘制的电流进行比较。 在这些基于当前的实施例中，参考阵列可以是不同的阵列，或与用于测试所选择的阵列相同的阵列。

公开(公告)号：US20090153230A1

公开(公告)日：2009-06-18

申请号：US11955221

申请日：2007-12-12

申请人： Feng Pan ,  Jonathan H. Huynh ,  Qui Vi Nguyen

发明人： Feng Pan ,  Jonathan H. Huynh ,  Qui Vi Nguyen

IPC分类号： G05F1/10

CPC分类号： H02M3/07

摘要： Techniques of providing a low output voltage, high current capability charge pump are given. The charge pump has multiple capacitors along with switching circuitry. In an initialization phase, the first plate of each of the capacitors is connected to receive a regulator voltage and the second plate of each capacitor is connected to ground. In a transfer phase, the capacitors are connected in series, where, for each capacitor after the first, the second plate is connected to the first plate of the preceding capacitor in the series. The output voltage of the pump is from the first plate of the last capacitor in the series. Regulation circuitry generates the regulator voltage from a reference voltage to have a value responsive to the output voltage level of the pump.

摘要翻译： 给出了提供低输出电压，高电流能力的电荷泵的技术。 电荷泵具有多个电容器以及开关电路。 在初始化阶段，每个电容器的第一板被连接以接收稳压器电压，并且每个电容器的第二板连接到地。 在转移阶段，电容器串联连接，其中，对于每个电容器，在第一个电容器之后，第二个板件被连接到串联的前面的电容器的第一个板上。 泵的输出电压来自串联的最后一个电容器的第一个板。 调节电路从参考电压产生调节器电压，以响应于泵的输出电压电平。

公开(公告)号：US20100074033A1

公开(公告)日：2010-03-25

申请号：US12235467

申请日：2008-09-22

申请人： Feng Pan ,  Yuxin Wang ,  Jonathan H. Huynh ,  Albert Chang ,  Khin Htoo ,  Qui Vi Nguyen

发明人： Feng Pan ,  Yuxin Wang ,  Jonathan H. Huynh ,  Albert Chang ,  Khin Htoo ,  Qui Vi Nguyen

IPC分类号： G11C5/14 ,  G05F1/10

CPC分类号： G11C8/08 ,  G11C5/147 ,  G11C16/30

摘要： A circuit and corresponding method for providing a reference voltage are presented. The circuit includes a current source having a magnitude with positive temperature correlation connected to a node, and a diode element connected between the node and ground, where the reference voltage is provided from the node. The circuit also includes a variable resistance connected to receive an input indicative of the circuit temperature and through which the diode element is connected to the node. The value of the variable resistance is adjusted based upon the circuit temperature input. The circuit is useful for application as a peripheral circuitry, such as on a flash or other non-volatile memory and other circuits requiring an on-chip reference voltage source.

摘要翻译： 提出了一种用于提供参考电压的电路和相应的方法。 电路包括具有连接到节点的正温度相关幅度的电流源和连接在节点和地之间的二极管元件，其中从该节点提供参考电压。 电路还包括可变电阻，其连接以接收指示电路温度的输入，并且二极管元件通过该电阻连接到节点。 可变电阻的值根据电路温度输入进行调整。 该电路可用作外围电路，例如闪存或其他非易失性存储器以及需要片上参考电压源的其他电路。

公开(公告)号：US20090315616A1

公开(公告)日：2009-12-24

申请号：US12144808

申请日：2008-06-24

申请人： Qui Vi Nguyen ,  Feng Pan ,  Jonathan H. Huynh

发明人： Qui Vi Nguyen ,  Feng Pan ,  Jonathan H. Huynh

IPC分类号： G05F1/10

CPC分类号： H02M3/073 ,  H02M3/07

摘要： A charge pump system is formed on an integrated circuit that can be connected to an external power supply. The system includes a charge pump and a clock generator circuit. The clock circuit is coupled to provide a clock output, at whose frequency the charge pump operates and generates an output voltage from an input voltage. The clock frequency is a decreasing function of the voltage level of the external power supply. This allows for reducing power consumption in the charge pump system formed on a circuit connectable to an external power supply.

摘要翻译： 在可以连接到外部电源的集成电路上形成电荷泵系统。 该系统包括电荷泵和时钟发生器电路。 时钟电路被耦合以提供时钟输出，其电荷泵在其频率处工作，并从输入电压产生输出电压。 时钟频率是外部电源的电压电平的递减函数。 这允许降低形成在可连接到外部电源的电路上的电荷泵系统中的功率消耗。

公开(公告)号：US08228739B2

公开(公告)日：2012-07-24

申请号：US13184778

申请日：2011-07-18

申请人： Feng Pan ,  Yuxin Wang ,  Jonathan H. Huynh ,  Albert Chang ,  Khin Htoo ,  Qui Vi Nguyen

发明人： Feng Pan ,  Yuxin Wang ,  Jonathan H. Huynh ,  Albert Chang ,  Khin Htoo ,  Qui Vi Nguyen

IPC分类号： G11C11/34

CPC分类号： G11C8/08 ,  G11C5/147 ,  G11C16/30

摘要： A circuit and corresponding method for providing a reference voltage are presented. The circuit includes a current source having a magnitude with positive temperature correlation connected to a node, and a diode element connected between the node and ground, where the reference voltage is provided from the node. The circuit also includes a variable resistance connected to receive an input indicative of the circuit temperature and through which the diode element is connected to the node. The value of the variable resistance is adjusted based upon the circuit temperature input. The circuit is useful for application as a peripheral circuitry, such as on a flash or other non-volatile memory and other circuits requiring an on-chip reference voltage source.

摘要翻译： 提出了一种用于提供参考电压的电路和相应的方法。 电路包括具有连接到节点的正温度相关幅度的电流源和连接在节点和地之间的二极管元件，其中从该节点提供参考电压。 电路还包括可变电阻，其连接以接收指示电路温度的输入，并且二极管元件通过该电阻连接到节点。 可变电阻的值根据电路温度输入进行调整。 该电路可用作外围电路，例如闪存或其他非易失性存储器以及需要片上参考电压源的其他电路。

公开(公告)号：US20090322413A1

公开(公告)日：2009-12-31

申请号：US12146243

申请日：2008-06-25

申请人： Jonathan H. Huynh ,  Qui Vi Nguyen ,  Feng Pan

发明人： Jonathan H. Huynh ,  Qui Vi Nguyen ,  Feng Pan

IPC分类号： G05F3/02

CPC分类号： H02M3/073 ,  H02M2003/077

摘要： A charge pump system for supplying an output voltage to a load is described. It includes a regulation circuit connected to receive the output voltage and derive an enable signal from it and multiple charge pump circuits connected in parallel to supply the output voltage. Each of the charge pump circuits is also connected to receive a clock signal and the enable signal. The system also includes one or more delay circuit elements, where a corresponding one or more, but less than all, of the charge pump circuits are connectable to receive the enable signal delayed by the corresponding delay circuit element.

摘要翻译： 描述用于向负载提供输出电压的电荷泵系统。 它包括一个调节电路，其连接以接收输出电压并从其中导出使能信号和并联连接的多个电荷泵电路以提供输出电压。 每个电荷泵电路也被连接以接收时钟信号和使能信号。 该系统还包括一个或多个延迟电路元件，其中对应的一个或多个但是全部的电荷泵电路可连接以接收由对应的延迟电路元件延迟的使能信号。

公开(公告)号：US20090302930A1

公开(公告)日：2009-12-10

申请号：US12135945

申请日：2008-06-09

申请人： Feng Pan ,  Jonathan H. Huynh

发明人： Feng Pan ,  Jonathan H. Huynh

IPC分类号： G05F3/02

CPC分类号： H02M3/07

摘要： A charge pump circuit for generating an output voltage is described. The charge pump includes an output generation section and a threshold voltage cancelation section, where these sections have the same structure including a first branch, which receives a first clock signal and provides a first output, and a second branch, which receives a second clock signal and provides a second output. The charge pump circuit also includes first and second transistors, where the first and second outputs of the output generation stage are respectively connected through the first and second transistors to provide the output voltage of the charge pump, and where the first and second outputs of the threshold voltage cancellation stage are respectively connected to the control gate the first and second transistors.

摘要翻译： 描述用于产生输出电压的电荷泵电路。 电荷泵包括输出产生部分和阈值电压消除部分，其中这些部分具有相同的结构，包括接收第一时钟信号并提供第一输出的第一分支和接收第二时钟信号的第二分支 并提供第二输出。 电荷泵电路还包括第一和第二晶体管，其中输出发生级的第一和第二输出分别通过第一和第二晶体管连接以提供电荷泵的输出电压，并且其中第一和第二输出的第一和第二输出 阈值电压消除级分别与第一和第二晶体管的控制栅极连接。

公开(公告)号：US20090153231A1

公开(公告)日：2009-06-18

申请号：US11955237

申请日：2007-12-12

申请人： Feng Pan ,  Jonathan H. Huynh

发明人： Feng Pan ,  Jonathan H. Huynh

IPC分类号： G05F3/02

CPC分类号： H02M3/073 ,  G11C5/145

摘要： A circuit including a charge pump and regulation circuitry is described. The output of the charge pump is connected to provide a first output signal that is connectable to drive a load. A diode is connected to provide a second output signal of lower voltage from the first output signal. The regulation circuitry is connected to the second output level and is connectable to the charge pump to regulate its output. The circuit also includes a current source connectable from the second line to ground, where control circuitry connects the current source to the second line when the first line is connected to the load.

摘要翻译： 描述了包括电荷泵和调节电路的电路。 电荷泵的输出被连接以提供可连接以驱动负载的第一输出信号。 二极管被连接以提供来自第一输出信号的较低电压的第二输出信号。 调节电路连接到第二输出电平并且可连接到电荷泵以调节其输出。 电路还包括可从第二线路连接到地的电流源，其中当第一线路连接到负载时，控制电路将电流源连接到第二线路。

公开(公告)号：US08710907B2

公开(公告)日：2014-04-29

申请号：US12144808

申请日：2008-06-24

申请人： Qui Vi Nguyen ,  Feng Pan ,  Jonathan H. Huynh

发明人： Qui Vi Nguyen ,  Feng Pan ,  Jonathan H. Huynh

IPC分类号： G05F1/10 ,  H02M3/07

CPC分类号： H02M3/073 ,  H02M3/07

摘要： A charge pump system is formed on an integrated circuit that can be connected to an external power supply. The system includes a charge pump and a clock generator circuit. The clock circuit is coupled to provide a clock output, at whose frequency the charge pump operates and generates an output voltage from an input voltage. The clock frequency is a decreasing function of the voltage level of the external power supply. This allows for reducing power consumption in the charge pump system formed on a circuit connectable to an external power supply.

摘要翻译： 在可以连接到外部电源的集成电路上形成电荷泵系统。 该系统包括电荷泵和时钟发生器电路。 时钟电路被耦合以提供时钟输出，其电荷泵在其频率处工作，并从输入电压产生输出电压。 时钟频率是外部电源的电压电平的递减函数。 这允许降低形成在可连接到外部电源的电路上的电荷泵系统中的功率消耗。