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1. 发明授权

US09111629B2 Smart charge pump configuration for non-volatile memories 有权
标题翻译：智能电荷泵配置用于非易失性存储器
公开(公告)号：US09111629B2
公开(公告)日：2015-08-18
申请号：US13441335
申请日：2012-04-06
申请人： Jeffrey C. Cunningham , Karthik Ramanan , Ross S. Scouller , Ronald J. Syzdek
发明人： Jeffrey C. Cunningham , Karthik Ramanan , Ross S. Scouller , Ronald J. Syzdek
IPC分类号： G11C16/04 , G11C16/30 , G11C5/14 , G11C8/08 , G11C16/34
CPC分类号： G11C16/30 , G11C5/145 , G11C8/08 , G11C16/3454
摘要： A semiconductor memory device includes a non-volatile memory, a memory controller, and a charge pump system. The memory controller establishes first parameters for a first programming cycle of a first plurality of memory cells of the non-volatile memory prior to the first programming cycle being performed. The charge pump system includes a plurality of charge pumps and provides a first programming pulse for use in performing the first program cycle. The first programming pulse is provided by selecting, according to the first parameters, which of the plurality of charge pumps are to be enabled during the first program cycle and which are to be disabled during the first program cycle.
摘要翻译：半导体存储器件包括非易失性存储器，存储器控制器和电荷泵系统。存储器控制器在执行第一编程周期之前为非易失性存储器的第一多个存储器单元的第一编程周期建立第一参数。电荷泵系统包括多个电荷泵并提供用于执行第一程序循环的第一编程脉冲。第一编程脉冲通过根据第一参数选择在第一编程周期期间启用多个电荷泵中的哪一个并在第一编程周期期间被禁用来提供。

2. 发明申请

US20140354364A1 OSCILLATOR WITH STARTUP CIRCUITRY 有权
标题翻译：振荡器与启动电路
公开(公告)号：US20140354364A1
公开(公告)日：2014-12-04
申请号：US13907068
申请日：2013-05-31
申请人： Gilles J. Muller , Jeffrey C. Cunningham , Karthik Ramanan
发明人： Gilles J. Muller , Jeffrey C. Cunningham , Karthik Ramanan
IPC分类号： H03L7/06
CPC分类号： H03L7/06 , H03B5/06 , H03B2200/0094 , H03K3/014 , H03K3/0231 , H03L1/02 , H03L3/00 , H03L5/00
摘要： An oscillator that includes a first source current leg and first sink current leg to source current and sink current, respectively, during a startup mode of oscillator operation. The oscillator includes a second source current leg and a second sink current leg to source current and sink current, respectively, during a second mode of oscillator operation.
摘要翻译：振荡器，其包括在振荡器操作的启动模式期间分别源电流和吸收电流的第一源电流支路和第一汇流电流支路。振荡器包括第二源极电流支路和第二吸收电流支路，以分别在第二振荡器操作模式期间分别提供电流和吸收电流。

3. 发明授权

US08310300B2 Charge pump having ramp rate control 有权
标题翻译：电荷泵具有斜坡率控制
公开(公告)号：US08310300B2
公开(公告)日：2012-11-13
申请号：US12870464
申请日：2010-08-27
申请人： Thomas D. Cook , Jeffrey C. Cunningham , Karthik Ramanan
发明人： Thomas D. Cook , Jeffrey C. Cunningham , Karthik Ramanan
IPC分类号： G05F1/10 , G05F3/02
CPC分类号： H02M3/07
摘要： A charge pump includes a first counter and a pump stage. The first counter has a control input for receiving a control signal, and an output for providing a first count value. The first count value is incremented in response to the control signal being a first logic state and the first count value is decremented in response to the control signal being a second logic state. The pump stage has a variable capacitor. The variable capacitor has a control input coupled to the output of the first counter for receiving the first count value. The capacitance value of the variable capacitor is changed in response to the first count value changing. The capacitance value is for determining a ramp-up rate of an output voltage at an output of the charge pump.
摘要翻译：电荷泵包括第一计数器和泵级。第一计数器具有用于接收控制信号的控制输入和用于提供第一计数值的输出。第一计数值响应于控制信号是第一逻辑状态而递增，并且第一计数值响应于控制信号是第二逻辑状态而递减。泵级具有可变电容器。可变电容器具有耦合到第一计数器的输出的控制输入，用于接收第一计数值。可变电容器的电容值响应于第一计数值变化而改变。电容值用于确定电荷泵输出处的输出电压的上升速率。

4. 发明申请

US20120169404A1 Exponential Charge Pump 有权
标题翻译：指数电荷泵
公开(公告)号：US20120169404A1
公开(公告)日：2012-07-05
申请号：US12984258
申请日：2011-01-04
申请人： Thomas D. Cook , Jeffrey C. Cunningham , Karthik Ramanan
发明人： Thomas D. Cook , Jeffrey C. Cunningham , Karthik Ramanan
IPC分类号： G05F1/10
CPC分类号： H02M3/07
摘要： An exponential multistage charge pump is disclosed. Node voltages in a pumpcell in one stage of the charge pump are used to control operation of clock drivers in a subsequent stage of the charge pump, thereby eliminating the need for level shifters.
摘要翻译：公开了一种指数多级电荷泵。在电荷泵的一级中的泵浦单元中的节点电压用于控制电荷泵的后续阶段中的时钟驱动器的操作，从而不需要电平转换器。

5. 发明授权

US08008964B1 Variable input voltage charge pump 有权
标题翻译：可变输入电压电荷泵
公开(公告)号：US08008964B1
公开(公告)日：2011-08-30
申请号：US12723214
申请日：2010-03-12
申请人： Thomas D. Cook , Jeffrey C. Cunningham , Karthik Ramanan
发明人： Thomas D. Cook , Jeffrey C. Cunningham , Karthik Ramanan
IPC分类号： G05F1/10
CPC分类号： H02M3/07
摘要： A device for providing a constant output voltage based on a variable input voltage is provided. The device may include: (1) a charge-pump comprising a plurality of cells, wherein each of the plurality of cells can be configured as an input cell, a stepping cell, or a load cell; (2) a comparator; and (3) a differentiator coupled to the comparator output, wherein the differentiator is configured to monitor the comparator output and produce a reset pulse each time the comparator output changes its state. The device may further include: (1) a decimator; (2) an up/down counter; and (3) a controller for detecting whether the device is operating in a first predetermined mode or a second predetermined mode, wherein the two modes relate to the configuration of the plurality of cells into the input cell, the stepping cell, and/or the load cell.
摘要翻译：提供了一种基于可变输入电压提供恒定输出电压的装置。该装置可以包括：（1）包括多个单元的电荷泵，其中多个单元中的每一个可以被配置为输入单元，步进单元或称重传感器; （2）比较器; 和（3）耦合到所述比较器输出的微分器，其中所述微分器被配置为在所述比较器输出改变其状态时监视所述比较器输出并产生复位脉冲。该装置还可以包括：（1）抽取器; （2）加/减计数器; 以及（3）控制器，用于检测设备是否以第一预定模式或第二预定模式操作，其中两种模式涉及多个单元到输入单元，步进单元和/或称重传感器。

6. 发明申请

US20110133819A1 LOW POWER CHARGE PUMP AND METHOD OF OPERATION 有权
标题翻译：低功率充电泵和操作方法
公开(公告)号：US20110133819A1
公开(公告)日：2011-06-09
申请号：US12633584
申请日：2009-12-08
申请人： Thomas D. Cook , Jeffrey C. Cunningham , Karthik Ramanan
发明人： Thomas D. Cook , Jeffrey C. Cunningham , Karthik Ramanan
IPC分类号： G05F3/02
CPC分类号： H02M3/073 , H02M1/36 , H02M2003/077
摘要： A charge pump and method for starting up a charge pump are provided. The charge pump comprises a plurality of charge pump cells and a start-up control circuit. Each charge pump cell has a clock terminal for receiving a delayed clock signal, an input terminal for receiving an input voltage, and an output terminal for providing a boosted voltage in response to receiving the clock signal and the input voltage. The start-up control circuit is coupled to the clock terminals of each of the plurality of charge pump cells. The start-up control circuit is for delaying the delayed clock signal provided to each charge pump cell of the plurality of charge pump cells. Each of the charge pump cells receives the delayed clock signal having a different predetermined delay so that each of the plurality of charge pump cells are enabled in a predetermined sequence during start-up of the charge pump.
摘要翻译：提供电荷泵和启动电荷泵的方法。电荷泵包括多个电荷泵电池和启动控制电路。每个电荷泵单元具有用于接收延迟时钟信号的时钟端子，用于接收输入电压的输入端子和用于响应于接收时钟信号和输入电压而提供升压电压的输出端子。启动控制电路耦合到多个电荷泵单元中的每一个的时钟端子。启动控制电路用于延迟提供给多个电荷泵单元的每个电荷泵单元的延迟时钟信号。每个电荷泵单元接收具有不同预定延迟的延迟时钟信号，使得多个电荷泵单元中的每一个在电荷泵的启动期间以预定的顺序被使能。

7. 发明授权

US08932925B1 Split-gate non-volatile memory (NVM) cell and device structure integration 有权
标题翻译：分离门非易失性存储器（NVM）单元和器件结构集成
公开(公告)号：US08932925B1
公开(公告)日：2015-01-13
申请号：US13973549
申请日：2013-08-22
申请人： Cheong Min Hong , Karthik Ramanan
发明人： Cheong Min Hong , Karthik Ramanan
IPC分类号： H01L29/792 , H01L27/06 , H01L29/78 , H01L29/66 , H01L21/02
CPC分类号： H01L29/792 , H01L21/02601 , H01L21/28273 , H01L27/0629 , H01L27/11541 , H01L29/42328 , H01L29/42332 , H01L29/66181 , H01L29/66825 , H01L29/66833
摘要： A method includes forming a first conductive layer over a substrate in a first region and second region of the substrate; patterning the first conductive layer to form a select gate in the first region and to remove the first conductive layer from the second region; forming a charge storage layer over the select gate and the substrate in the first region and over the substrate in the second region; forming a second conductive layer over the charge storage layer in the first and second regions; and patterning the second conductive layer and charge storage layer to form a control gate overlapping the select gate in the first region, wherein a first portion of the charge storage layer remains between the select gate and control gate, and to form an electrode in the second region, wherein a second portion of the charge storage layer remains between the electrode and substrate.
摘要翻译：一种方法包括在衬底的第一区域和第二区域中在衬底上形成第一导电层; 图案化第一导电层以在第一区域中形成选择栅极并从第二区域去除第一导电层; 在所述第一区域中的所述选择栅极和所述衬底上方并在所述第二区域中的所述衬底上方形成电荷存储层; 在第一和第二区域中的电荷存储层上形成第二导电层; 以及图案化所述第二导电层和电荷存储层以形成与所述第一区域中的所述选择栅极重叠的控制栅极，其中所述电荷存储层的第一部分保留在所述选择栅极和控制栅极之间，并且在所述第二区域中形成电极区域，其中电荷存储层的第二部分保留在电极和衬底之间。

8. 发明申请

US20140269132A1 NEGATIVE CHARGE PUMP REGULATION 有权
标题翻译：负电荷泵调节
公开(公告)号：US20140269132A1
公开(公告)日：2014-09-18
申请号：US13835068
申请日：2013-03-15
申请人： Jon S. Choy , Gilles J. Muller , Karthik Ramanan
发明人： Jon S. Choy , Gilles J. Muller , Karthik Ramanan
IPC分类号： G05F1/46
CPC分类号： G05F1/46 , H02M1/15 , H02M3/07 , H02M2001/0045 , H02M2003/071
摘要： A negative charge pump is responsive to a pump enable signal. A voltage controlled current source provides a current. A resistor is coupled between a node from the voltage controlled current source and a negative charge output from the negative charge pump. A capacitor is placed in parallel with the resistor. A comparator generates the pump enable signal to control the negative charge pump. The comparator is coupled to the resistor and the capacitor and measures an IR drop thereacross and compares this measurement against a reference threshold. A level of the pump enable signal can be variable by tuning an amount of resistance of the resistor or capacitor or adjusting the reference threshold. A memory can be driven by a method of the negative charge pump.
摘要翻译：负电荷泵响应于泵使能信号。电压控制电流源提供电流。电阻器耦合在来自压控电流源的节点和来自负电荷泵的负电荷输出之间。电容器与电阻器并联放置。比较器产生泵使能信号来控制负电荷泵。比较器耦合到电阻器和电容器，并测量其上的IR电压，并将此测量值与参考阈值进行比较。通过调节电阻或电容器的电阻量或调整参考阈值，可以使泵启用信号的电平可变。存储器可以由负电荷泵的方法驱动。

9. 发明申请

US20140266366A1 COMPENSATED HYSTERESIS CIRCUIT 有权
标题翻译：补偿迟滞电路
公开(公告)号：US20140266366A1
公开(公告)日：2014-09-18
申请号：US13836882
申请日：2013-03-15
申请人： JACOB T. WILLIAMS , JEFFREY C. CUNNINGHAM , GILLES J. MULLER , KARTHIK RAMANAN
发明人： JACOB T. WILLIAMS , JEFFREY C. CUNNINGHAM , GILLES J. MULLER , KARTHIK RAMANAN
IPC分类号： H03K3/011
CPC分类号： H03K3/011 , H03K3/3565
摘要： A compensated hysteresis circuit comprises a hysteresis circuit including an output node and a first control transistor. The first control transistor provides feedback to the hysteresis circuit. A temperature and voltage compensation circuit includes a self-biasing threshold control circuit including an input coupled to the output node of the hysteresis circuit, and a first trim transistor coupled between the first control transistor of the hysteresis circuit and the self-biasing threshold control circuit.
摘要翻译：补偿滞后电路包括包括输出节点和第一控制晶体管的滞后电路。第一控制晶体管向迟滞电路提供反馈。温度和电压补偿电路包括自偏置阈值控制电路，其包括耦合到迟滞电路的输出节点的输入端以及耦合在迟滞电路的第一控制晶体管与自偏置阈值控制电路之间的第一调整晶体管。

10. 发明授权

US08704587B2 Configurable multistage charge pump using a supply detect scheme 有权
标题翻译：可配置的多级电荷泵使用电源检测方案
公开(公告)号：US08704587B2
公开(公告)日：2014-04-22
申请号：US13555848
申请日：2012-07-23
申请人： Karthik Ramanan , Jeffrey C. Cunningham , Ronald J. Syzdek
发明人： Karthik Ramanan , Jeffrey C. Cunningham , Ronald J. Syzdek
IPC分类号： G05F1/62 , H02M3/18
CPC分类号： G11C16/30 , G11C5/145 , H02M3/07 , H02M2001/0022
摘要： A configurable multistage charge pump including multiple pumpcells, at least one bypass switch and control logic. The pumpcells are coupled together in series including a first pumpcell receiving an input voltage and at least one remaining pumpcell including a last pumpcell which generates an output voltage. Each bypass switch is coupled to selectively provide the input voltage to a pumpcell input of a corresponding one of the remaining pumpcells. The control logic is configured to determine one of multiple voltage ranges of the input voltage, to enable each pumpcell for a first voltage range and to disable and bypass at least one pumpcell for at least one other voltage range. A method of operating a multistage charge pump including detecting an input voltage, selecting a voltage range based on an input voltage, and enabling a number of cascaded pumpcells corresponding to the selected voltage range.
摘要翻译：一个可配置的多级电荷泵，包括多个泵浦单元，至少一个旁路开关和控制逻辑。泵浦单元串联连接在一起，包括接收输入电压的第一泵浦单元和至少一个包括产生输出电压的最后一个泵浦单元的剩余泵浦单元。每个旁路开关被耦合以选择性地将输入电压提供给相应的剩余泵浦单元的泵单元输入。控制逻辑被配置为确定输入电压的多个电压范围中的一个，以使得每个泵浦电池能够达到第一电压范围，并且在至少一个其它电压范围内禁用和旁路至少一个泵浦电池。一种操作多级电荷泵的方法，包括检测输入电压，基于输入电压选择电压范围，以及使能与选定电压范围对应的多个级联泵浦电池。

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