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1. 发明申请

WO2009085705A1 READ, VERIFY WORD LINE REFERENCE VOLTAGE TO TRACK SOURCE LEVEL 审中-公开
标题翻译：读取，验证字线参考电压到跟踪源电平
公开(公告)号：WO2009085705A1
公开(公告)日：2009-07-09
申请号：PCT/US2008/086870
申请日：2008-12-15
申请人： SANDISK CORPORATION , PAN, Feng , PHAM, Trung , WOO, Byungki
发明人： PAN, Feng , PHAM, Trung , WOO, Byungki
IPC分类号： G11C16/08 , G11C16/30
CPC分类号： G11C16/08 , G11C16/30
摘要： A non-volatile memory device has individual pages of memory cells to be sensed in parallel. The memory device includes a source level tracking circuit coupled to receive a predetermined word line voltage from a word line voltage supply and the voltage level at the aggregate source node of one or more pages and coupled to provide to word lines of the memory an output voltage during the sensing operation, where the source level tracking circuit includes an op amp whereby the output voltage is the word line voltage offset by an amount to track the voltage level at the aggregate node and compensate for source bias errors due to a finite resistance in the ground loop.
摘要翻译：非易失性存储器件具有要并行感测的存储器单元的单独页面。存储器件包括源极电平跟踪电路，其被耦合以从字线电压源接收预定字线电压，并在一个或多个页面的聚合源节点处接收电压电平，并被耦合以向存储器的字线提供输出电压在感测操作期间，源电平跟踪电路包括运算放大器，由此输出电压是字线电压偏移量，以跟踪聚集节点处的电压电平，并补偿源极偏移误差，这是由于在接地回路。

2. 发明申请

WO2005111757A1 FOUR PHASE CHARGE PUMP OPERABLE WITHOUT PHASE OVERLAP WITH IMPROVED EFFICIENCY 审中-公开
标题翻译：四相充电泵可以在没有相位覆盖的情况下运行，而且可以提高效率
公开(公告)号：WO2005111757A1
公开(公告)日：2005-11-24
申请号：PCT/US2005/015762
申请日：2005-05-05
申请人： SANDISK CORPORATION , PAN, Feng , PHAM, Trung
发明人： PAN, Feng , PHAM, Trung
IPC分类号： G05F1/10
CPC分类号： H02M3/073 , H02M2003/075 , H02M2003/078
摘要： In a Dickson type charge pump in which a plurality of serially connected diodes sequentially respond to anti-phase 50/50 clock cross over or overlapped (f1, f2), efficiency of the charge pump is increased by providing with each diode a charge transfer transistor in parallel therewith between two adjacent nodes, and driving the charge transfer transistor to conduction during a time when the parallel diode is conducting thereby transferring any residual trapped charge at one node through the charge transfer transistor to the next node. Operating frequency can be increased by providing a pre-charge diode coupling an input node to the gate of the charge transfer transistor to facilitate conductance of the charge transfer transistor, and by coupling the control terminal of the charge transfer transistor to an input node in response to charge on an output node to thereby equalize charge on the control terminal and on the input node during a recovery period.
摘要翻译：在其中多个串联连接的二极管顺序响应于反相50/50时钟交叉或重叠（f1，f2）的迪克森型电荷泵中，通过向每个二极管提供电荷转移晶体管来增加电荷泵的效率在两个相邻节点之间并联，并且在并联二极管导通的时间期间驱动电荷转移晶体管导通，由此将一个节点处的任何残余俘获电荷通过电荷转移晶体管传输到下一个节点。可以通过提供将输入节点耦合到电荷转移晶体管的栅极的预充电二极管来提高工作频率，以促进电荷转移晶体管的电导，并且通过将电荷转移晶体管的控制端子耦合到输入节点作为响应在输出节点上进行充电，从而在恢复期间均衡控制终端和输入节点上的电荷。

3. 发明申请

WO2008036609A2 IMPLEMENTATION OF OUTPUT FLOATING SCHEME FOR HV CHARGE PUMPS 审中-公开
标题翻译：高压充电泵输出浮动方案的实现
公开(公告)号：WO2008036609A2
公开(公告)日：2008-03-27
申请号：PCT/US2007/078667
申请日：2007-09-17
申请人： SANDISK CORPORATION , GOVINDU, Prashanti , PAN, Feng , MUI, Man , KWON, Gyuwan , PHAM, Trung , WANG, Chi-Ming
发明人： GOVINDU, Prashanti , PAN, Feng , MUI, Man , KWON, Gyuwan , PHAM, Trung , WANG, Chi-Ming
CPC分类号： G11C16/30 , G11C5/145
摘要： According to different embodiments of the present invention, various methods, devices and systems are described for managing power in charge pumps in a non-volatile memory system having a high voltage charge pump and associated regulator. A method includes the following operations, receiving an operation command corresponding to an operation, pumping up a charge pump output voltage to a desired output voltage, turning off the regulator and the charge pump when the output voltage is approximately the desired output voltage compensating for charge sharing by turning on the charge pump and setting a pump clock rate to a slow clock rate in order to avoid overshooting the desired output voltage by the charge pump while the operation is being carried out, and compensating for junction leakage by turning on the regulator and the charge pump until the charge pump output voltage is the desired output voltage.
摘要翻译：根据本发明的不同实施例，描述了用于管理具有高电压电荷泵和相关联的调节器的非易失性存储器系统中的电荷泵中的功率的各种方法，设备和系统。一种方法包括以下操作：接收对应于操作的操作命令，将电荷泵输出电压上升到期望的输出电压，当输出电压近似为补偿电荷的期望输出电压时关闭调节器和电荷泵通过打开电荷泵并将泵时钟速率设置为较慢的时钟速率来共享，以避免在执行操作时通过电荷泵超出期望的输出电压，并且通过接通调节器来补偿结泄漏并且电荷泵，直到电荷泵输出电压是所需的输出电压。

4. 发明申请

WO2008082894A1 CONTROLLING BITLINE BIAS VOLTAGE 审中-公开
标题翻译：控制双极偏置电压
公开(公告)号：WO2008082894A1
公开(公告)日：2008-07-10
申请号：PCT/US2007/087299
申请日：2007-12-12
申请人： SANDISK CORPORATION , PAN, Feng , PHAM, Trung
发明人： PAN, Feng , PHAM, Trung
IPC分类号： G11C16/24 , G05F3/24
CPC分类号： G11C16/24
摘要： Controlling a bitline bias voltage by sensing the bitline bias voltage, modifying a bitline bias control signal in accordance with the sensed bitline bias voltage, and controlling the bitline bias voltage in accordance with the modified bitline bias control signal. The modifying the bitline bias control signal is carried out by enabling a pull up circuit and disabling a pull down circuit in response to a first control signal and disabling the pull up circuit and enabling the pull down circuit in response to a second control signal.
摘要翻译：通过感测位线偏置电压来控制位线偏置电压，根据感测到的位线偏置电压修改位线偏置控制信号，并根据修改的位线偏置控制信号控制位线偏置电压。通过启用上拉电路和响应于第一控制信号禁用下拉电路并且禁用上拉电路并且响应于第二控制信号启用下拉电路来执行修改位线偏置控制信号。

5. 发明申请

WO2012044418A1 LEVEL SHIFTER WITH SHOOT-THROUGH CURRENT ISOLATION 审中-公开
标题翻译：水平切换器，具有穿孔电流隔离
公开(公告)号：WO2012044418A1
公开(公告)日：2012-04-05
申请号：PCT/US2011/049109
申请日：2011-08-25
申请人： SANDISK TECHNOLOGIES INC. , HUYNH, Jonathan, Hoang , PAN, Feng , NGUYEN, Qui, Vi , PHAM, Trung
发明人： HUYNH, Jonathan, Hoang , PAN, Feng , NGUYEN, Qui, Vi , PHAM, Trung
IPC分类号： G11C16/08 , G11C16/30 , G11C5/14 , G11C8/08
CPC分类号： G11C16/08 , G11C16/30 , H03K19/0013 , H03K19/018521
摘要： A level shifter circuit suitable for high voltage applications with shoot-through current isolation is presented. The level shifter receives a first enable signal and receives an input voltage at a first node and supplies an output voltage at a second node. The circuit provides the output voltage from the input voltage in response to the first enable signal being asserted and sets the output node to a low voltage value when the first enable signal is de-asserted. The level shifting circuit includes a depletion type NMOS transistor, having a gate connected to the output node, and a PMOS transistor, having a gate connected to the first enable signal. It also includes a first resistive element that is distinct from the NMOS and PMOS transistors. The NMOS transistor, the PMOS transistor and the first resistive elements are connected in series between the first and second nodes, with the NMOS transistor being connected to the first node. The level shifter further includes a discharge circuit connected to the second node and to receive a second enable signal. The second enable signal is asserted when the first enable signal is de-asserted and is asserted when the first enable signal is de-asserted, and the discharge circuit connects the second node to the low voltage value when the second enable signal is asserted and isolates the second node from ground when the second enable signal is de-asserted.
摘要翻译：提出了适用于直流电流隔离的高电压应用的电平移位电路。电平移位器接收第一使能信号并在第一节点处接收输入电压，并在第二节点处提供输出电压。响应于第一使能信号被断言，电路提供来自输入电压的输出电压，并且当第一使能信号被解除置位时，将输出节点设置为低电压值。电平移位电路包括具有连接到输出节点的栅极的耗尽型NMOS晶体管和具有连接到第一使能信号的栅极的PMOS晶体管。它还包括与NMOS和PMOS晶体管不同的第一电阻元件。 NMOS晶体管，PMOS晶体管和第一电阻元件串联连接在第一和第二节点之间，NMOS晶体管连接到第一节点。电平移位器还包括连接到第二节点并且接收第二使能信号的放电电路。当第一使能信号被解除置位时，第二使能信号被置位，并且当第一使能信号被断言时被断言，并且当第二使能信号被断言时，放电电路将第二节点连接到低电压值当第二使能信号被取消断言时，来自接地的第二节点。

6. 发明申请

WO2013043268A2 HIGH VOLTAGE CHARGE PUMP REGULATION SYSTEM WITH FINE STEP ADJUSTMENT 审中-公开
标题翻译：具有精细步进调整的高压充电泵调节系统
公开(公告)号：WO2013043268A2
公开(公告)日：2013-03-28
申请号：PCT/US2012/050077
申请日：2012-08-09
申请人： SANDISK TECHNOLOGIES INC. , NGUYEN, Qui Vi , PHAM, Trung
发明人： NGUYEN, Qui Vi , PHAM, Trung
IPC分类号： G05F1/10
CPC分类号： G11C5/145 , G11C16/00 , G11C16/12 , G11C16/30 , G11C29/021 , G11C29/028 , H02M3/07 , H02M2001/0025
摘要： A regulator system for a charge pump system divides the binary decoding into two branches. One controls a set of parallel connected resistors for fine output voltage steps. The other branch controls a serial resistor to provide the large step size. For example, a 9-bit digital input signal is split into 2 least significant for the fine adjustment and the other 7 bits for the larger adjustments. In the example of a 50mV step size, in one current path 2 bits of the binary input then control two parallel resistors for 50mV and 100mV step size, and in the other current path 7 bits are used for one-hot-decode control serial resistors to provide a 200mV step size. A unity gain operational amplifier and a high voltage device are added in between the two branches to decouple the parasitic capacitance of large parallel resistors from the other elements. Thus, the sensing node consequently has less parasitic capacitance and is more sensitive to output level movement, resulting in less ripple at the output node.
摘要翻译：用于电荷泵系统的调节器系统将二进制解码分为两个分支。一个控制一组并联的电阻器，用于精细的输出电压阶跃。另一个分支控制串联电阻以提供大的步长。例如，9位数字输入信号被分成2个最小的微调，而另外7位用于较大的调整。在50mV步长的示例中，在一个电流路径中，二进制输入的2位然后控制50mV和100mV步长的两个并联电阻，而在另一个电流通路中，7位用于单热解码控制串行电阻以提供200mV步长。在两个分支之间增加一个单位增益运算放大器和一个高压器件，以将大并联电阻器的寄生电容与其他元件去耦。因此，感测节点因此具有较小的寄生电容并且对输出电平移动更敏感，从而导致在输出节点处较少的纹波。

7. 发明申请

WO2008064346A2 FRACTURE FIXATION DEVICE, TOOLS AND METHODS 审中-公开
标题翻译：骨折固定装置，工具和方法
公开(公告)号：WO2008064346A2
公开(公告)日：2008-05-29
申请号：PCT/US2007/085451
申请日：2007-11-21
申请人： SONOMA ORTHOPEDIC PRODUCTS, INC. , SARAVIA, Herber , HAUCK, Brian, A. , PHAM, Trung , NELSON, Charles, L. , ANDERSON, Arthur, E., III , BOWEN, William, W. , MCDANIEL, Stephen, R.
发明人： SARAVIA, Herber , HAUCK, Brian, A. , PHAM, Trung , NELSON, Charles, L. , ANDERSON, Arthur, E., III , BOWEN, William, W. , MCDANIEL, Stephen, R.
IPC分类号： A61B17/58
CPC分类号： A61B17/7266 , A61B17/1725 , A61B17/7241 , A61B17/8872
摘要： A bone fixation device is provided with an elongate body having a longitudinal axis and having a flexible state and a rigid state, a plurality of grippers disposed at longitudinally spaced locations of the elongated body, a curved rigid hub connected to the elongated body, and an actuator operably connected to the grippers to deploy the grippers from a first shape to an expanded second shape. Methods of repairing a fracture of a bone are also disclosed. One such method comprising inserting a bone fixation device into an intramedullary space of the bone to place at least a portion of an elongate body of the fixation device in a flexible state on one side of the fracture and at least a portion of a curved rigid hub on another side of the fracture, and operating an actuator to deploy a plurality of grippers of the fixation device to engage an inner surface of the intramedullary space to anchor the fixation device to the bone.
摘要翻译：骨固定装置设置有具有纵向轴线并具有柔性状态和刚性状态的细长本体，设置在细长本体的纵向间隔位置处的多个夹具，弯曲的刚性毂连接到细长主体，以及致动器，可操作地连接到夹具以将夹具从第一形状展开到展开的第二形状。还公开了修复骨折的方法。一种这样的方法包括将骨固定装置插入骨的髓内空间以将固定装置的细长本体的至少一部分以柔性状态置于骨折的一侧以及弯曲刚性毂的至少一部分在骨折的另一侧，并且操作致动器以展开固定装置的多个夹具以接合髓内空间的内表面以将固定装置锚定到骨头。

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