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1. 发明授权

US07284167B2 Automated tests for built-in self test 有权
标题翻译：自动测试内置自检
公开(公告)号：US07284167B2
公开(公告)日：2007-10-16
申请号：US11041608
申请日：2005-01-24
申请人： Mimi Lee , Darlene Hamilton , Ken Cheong Cheah , Kendra Nguyen , Xin Guo
发明人： Mimi Lee , Darlene Hamilton , Ken Cheong Cheah , Kendra Nguyen , Xin Guo
IPC分类号： G11C29/00 , G11C7/00
CPC分类号： G11C29/021 , G11C16/04 , G11C29/02 , G11C29/028 , G11C29/1201 , G11C29/16
摘要： A method is discussed for providing programmable test conditions for a built-in self test circuit of a flash memory device. The method comprises providing a BIST interface adapted to adjust a test condition used in a BIST circuit, providing the memory cells of the Flash memory device, and providing the BIST circuit adapted to test the flash memory. The method further comprises communicating with the BIST interface one or more global variables associated with the test condition, adjusting the test condition used by the BIST circuit based on the values represented by the global variables, performing one or more test operations on the flash memory in accordance with the adjusted test condition, and reporting the results of the memory test operations. The method of the present invention may further include a serial communications medium and the use of a serial test protocol for communicating the global variables to the BIST interface and test results from the interface. The global variables may also be provided by a memory device user.
摘要翻译：讨论了一种用于为闪存设备的内置自测电路提供可编程测试条件的方法。该方法包括提供BIST接口，其适于调整在BIST电路中使用的测试条件，提供闪存设备的存储单元，以及提供适于测试闪速存储器的BIST电路。该方法还包括与BIST接口通信与测试条件相关联的一个或多个全局变量，基于由全局变量表示的值来调整由BIST电路使用的测试条件，对闪速存储器执行一个或多个测试操作根据调整的测试条件，并记录测试操作的结果。本发明的方法还可以包括串行通信介质和使用串行测试协议来将全局变量传送到BIST接口并从接口测试结果。全局变量也可由存储器设备用户提供。

2. 发明申请

US20060168491A1 Automated tests for built-in self test 有权
标题翻译：自动测试内置自检
公开(公告)号：US20060168491A1
公开(公告)日：2006-07-27
申请号：US11041608
申请日：2005-01-24
申请人： Mimi Lee , Darlene Hamilton , Ken Cheah , Kendra Nguyen , Xin Guo
发明人： Mimi Lee , Darlene Hamilton , Ken Cheah , Kendra Nguyen , Xin Guo
IPC分类号： G01R31/28
CPC分类号： G11C29/021 , G11C16/04 , G11C29/02 , G11C29/028 , G11C29/1201 , G11C29/16
摘要： A method is discussed for providing programmable test conditions for a built-in self test circuit of a flash memory device. The method comprises providing a BIST interface adapted to adjust a test condition used in a BIST circuit, providing the memory cells of the Flash memory device, and providing the BIST circuit adapted to test the flash memory. The method further comprises communicating with the BIST interface one or more global variables associated with the test condition, adjusting the test condition used by the BIST circuit based on the values represented by the global variables, performing one or more test operations on the flash memory in accordance with the adjusted test condition, and reporting the results of the memory test operations. The method of the present invention may further include a serial communications medium and the use of a serial test protocol for communicating the global variables to the BIST interface and test results from the interface. The global variables may also be provided by a memory device user.
摘要翻译：讨论了一种用于为闪存设备的内置自测电路提供可编程测试条件的方法。该方法包括提供BIST接口，其适于调整在BIST电路中使用的测试条件，提供闪存设备的存储单元，以及提供适于测试闪速存储器的BIST电路。该方法还包括与BIST接口通信与测试条件相关联的一个或多个全局变量，基于由全局变量表示的值来调整由BIST电路使用的测试条件，对闪速存储器执行一个或多个测试操作根据调整的测试条件，并记录测试操作的结果。本发明的方法还可以包括串行通信介质和使用串行测试协议来将全局变量传送到BIST接口并从接口测试结果。全局变量也可由存储器设备用户提供。

3. 发明授权

US06957297B1 Simultaneous execution command modes in a flash memory device 有权
标题翻译：闪存设备中的同时执行命令模式
公开(公告)号：US06957297B1
公开(公告)日：2005-10-18
申请号：US10603136
申请日：2003-06-23
申请人： Lee E. Cleveland , Kendra Nguyen
发明人： Lee E. Cleveland , Kendra Nguyen
IPC分类号： G11C16/10 , G11C16/26 , G06F12/02
CPC分类号： G11C16/26 , G11C16/10 , G11C2216/22
摘要： A method for operating a flash memory includes, in response to a received operation command, initiating an embedded operation of the flash memory and subsequently, during execution of the embedded operation, in response to a received read command, initiating a burst read operation of the flash memory.
摘要翻译：一种用于操作闪速存储器的方法包括：响应于所接收的操作命令，启动闪速存储器的嵌入式操作，随后在执行嵌入式操作期间，响应于接收到的读取命令，启动闪存读取操作闪存

4. 发明授权

US06377488B1 Fast-erase memory devices and method for reducing erasing time in a memory device 有权
标题翻译：快速擦除存储器件和减少存储器件中擦除时间的方法
公开(公告)号：US06377488B1
公开(公告)日：2002-04-23
申请号：US09645623
申请日：2000-08-24
申请人： Yong Kim , Kendra Nguyen
发明人： Yong Kim , Kendra Nguyen
IPC分类号： G11C1606
CPC分类号： G11C16/3472 , G11C16/16 , G11C16/344 , G11C16/3468
摘要： A non-volatile semiconductor memory device comprising a memory array, the memory array divided into a plurality of sectors, each sector comprising a plurality of memory cells, which can be electrically erased, and an erase-verify circuit, capable of simultaneously erasing multiple memory sectors. The erase-verify circuit simultaneously erases a plurality memory sectors, and verifies that the memory cells in a selected memory sector of the plurality of memory sectors is erased. When it determines that the selected memory sector is not erased, it again erases the plurality of memory sectors and again verifies whether the selected memory sector is erased. The erasing of the plurality of memory sectors is repeated until it is verified that the memory cells in the selected memory sector is erased.
摘要翻译：一种非易失性半导体存储器件，包括存储器阵列，被划分成多个扇区的存储器阵列，每个扇区包括可被电擦除的多个存储单元，以及擦除验证电路，能够同时擦除多个存储器部门。擦除验证电路同时擦除多个存储器扇区，并且验证多个存储器扇区中所选择的存储器扇区中的存储单元被擦除。当确定所选择的存储器扇区未被擦除时，它再次擦除多个存储器扇区，并且再次验证所选择的存储器扇区是否被擦除。重复擦除多个存储器扇区，直到验证所选存储器扇区中的存储单元被擦除为止。

5. 发明授权

US06654848B1 Simultaneous execution command modes in a flash memory device 有权
标题翻译：闪存设备中的同时执行命令模式
公开(公告)号：US06654848B1
公开(公告)日：2003-11-25
申请号：US09662791
申请日：2000-09-15
申请人： Lee E. Cleveland , Kendra Nguyen
发明人： Lee E. Cleveland , Kendra Nguyen
IPC分类号： G06F1200
CPC分类号： G11C16/26 , G11C16/10 , G11C2216/22
摘要： A method for operating a flash memory includes, in response to a received operation command, initiating an embedded operation of the flash memory and subsequently, during execution of the embedded operation, in response to a received read command, initiating a burst read operation of the flash memory.
摘要翻译：一种用于操作闪速存储器的方法包括：响应于所接收的操作命令，启动闪速存储器的嵌入式操作，随后在执行嵌入式操作期间，响应于接收到的读取命令，启动闪存读取操作闪存

6. 发明授权

US06351420B1 Voltage boost level clamping circuit for a flash memory 有权
标题翻译：用于闪存的电压升压电平钳位电路
公开(公告)号：US06351420B1
公开(公告)日：2002-02-26
申请号：US09595519
申请日：2000-06-16
申请人： Takao Akaogi , Ali K. Al-Shamma , Lee Edward Cleveland , Yong Kim , Jin-Lien Lin , Boon Tang Teh , Kendra Nguyen
发明人： Takao Akaogi , Ali K. Al-Shamma , Lee Edward Cleveland , Yong Kim , Jin-Lien Lin , Boon Tang Teh , Kendra Nguyen
IPC分类号： G11C700
CPC分类号： G11C8/08 , G11C5/145 , G11C16/12 , G11C16/30
摘要： A voltage boost circuit (111) for a flash memory (100) includes a boosting circuit (110), which is capable of boosting a portion of a power supply voltage (VCC) of the flash memory to a word line voltage level adequate for accessing a core cell in a core cell array (102) of the memory. The voltage boost circuit further includes a balancing or clamping circuit (112) for providing a nonzero adjustment voltage (VCL) to the boosting circuit to reduce the portion of the supply voltage that is available for boosting by the boosting circuit when the power supply voltage exceeds a certain value.
摘要翻译：用于闪存（100）的升压电路（111）包括升压电路（110），其能够将闪存的电源电压（VCC）的一部分升压到足以访问的字线电压电平存储器的核心单元阵列（102）中的核心单元。升压电路还包括用于向升压电路提供非零调节电压（VCL）的平衡或钳位电路（112），以在电源电压超过时减小升压电路可用于升压的电源电压部分一定的价值。

7. 发明授权

US07696912B2 Interrupt based multiplexed current limit circuit 有权
标题翻译：基于中断的多路复用电流限制电路
公开(公告)号：US07696912B2
公开(公告)日：2010-04-13
申请号：US12114693
申请日：2008-05-02
申请人： Dimitry Goder , Zongqi Hu , Kendra Nguyen
发明人： Dimitry Goder , Zongqi Hu , Kendra Nguyen
IPC分类号： H03M1/00
CPC分类号： H02M3/157 , H02M3/1584 , H02M2001/0009
摘要： A switching voltage regulator includes, in part, N output stages, a loop ADC, a multiplexer, a current ADC, and an interrupt block. The loop analog-to-digital converter receives the N output voltages each of which is associated with one of N channels. The loop ADC is adapted to vary a duty cycle of N signals each applied to one of the N output stages that generate the N output voltages. The interrupt block is adapted to enable the multiplexer to couple an output stage to the current ADC if a difference between voltages sensed at an output stage during at least two sampling times exceeds a predefined threshold value. The interrupt block may also be adapted to enable the multiplexer to couple an output stage to the current ADC block if a difference between a voltage sensed at the output stage and a reference voltage exceeds a predefined threshold value.
摘要翻译：开关电压调节器部分地包括N个输出级，环路ADC，多路复用器，电流ADC和中断块。环路模数转换器接收N个输出电压，每个N个输出电压与N个通道中的一个相关联。环路ADC适于改变每个施加到产生N个输出电压的N个输出级中的一个的N个信号的占空比。如果在至少两个采样时间期间在输出级感测的电压之间的差超过预定义的阈值，则中断块适于使多路复用器将输出级耦合到当前ADC。如果在输出级感测的电压与参考电压之间的差超过预定义的阈值，则中断块还可以适于使多路复用器将输出级耦合到当前ADC模块。

8. 发明授权

US06507527B1 Memory line discharge before sensing 有权
标题翻译：感应前存储线放电
公开(公告)号：US06507527B1
公开(公告)日：2003-01-14
申请号：US09698614
申请日：2000-10-27
申请人： Lee Cleveland , Jin-Lien Lin , Takao Akaogi , Ali Al-Shamma , Boon Tang Teh , Kendra Nguyen , Yong Kim
发明人： Lee Cleveland , Jin-Lien Lin , Takao Akaogi , Ali Al-Shamma , Boon Tang Teh , Kendra Nguyen , Yong Kim
IPC分类号： G11C700
CPC分类号： G11C7/06 , G11C7/12
摘要： A method of charging a data line to a desired voltage level prior to the data line being sensed in a low power memory device by discharging the data line from a voltage level above the desired voltage level to approximately the desired voltage level. By using N-type transistors to discharge the data line to the desired voltage level, the voltage level can be reached faster with cheaper components.
摘要翻译：一种通过将数据线从高于期望电压电平的电压电平放电到大约期望的电压电平，在数据线在低功率存储器件中被感测之前将数据线充电到期望的电压电平的方法。通过使用N型晶体管将数据线放电至期望的电压电平，可以用更便宜的组件更快地达到电压电平。

9. 发明授权

US06240040B1 Multiple bank simultaneous operation for a flash memory 有权
标题翻译：多存储银行同时操作闪存
公开(公告)号：US06240040B1
公开(公告)日：2001-05-29
申请号：US09526239
申请日：2000-03-15
申请人： Takao Akaogi , Lee Edward Cleveland , Kendra Nguyen
发明人： Takao Akaogi , Lee Edward Cleveland , Kendra Nguyen
IPC分类号： G11C800
CPC分类号： G11C16/26 , G11C16/08 , G11C16/10 , G11C2216/22
摘要： An address buffering and decoding architecture for a multiple bank (or N bank) simultaneous operation flash memory is described. For the duration of a read operation at one bank of the N banks, a write operation can only be performed on any one of the other N-1 banks. For the duration of a write operation at one bank of the N banks, a read operation can only be performed on any one of the other N-1 banks. The address buffering and decoding architecture includes a control logic circuit, an address selection circuit located at each of the N banks, and address buffer circuitry. The control logic circuit is used to generate N read select signals to select one bank of the N banks for a read operation and N write select signals to select another bank of the N banks for a write operation. Each address selection circuit is configured to receive from the control logic circuit a respective one of the N read select signals and a respective one of the N write select signals. The address buffer circuitry is used to simultaneously provide a write address and a read address in order to access core memory cells. Respective first portions of the write and read addresses are provided to the control logic circuit to generate the respective N read select signals and N write select signals. Respective second portions of the write and read addresses are provided to the respective address selection circuit.
摘要翻译：描述了用于多组（或N组）同时操作闪速存储器的地址缓冲和解码架构。对于在N个存储体的一个存储体中的读取操作的持续时间，只能对其他N-1个存储体中的任一个进行写入操作。对于在N个存储体的一个存储体中的写入操作的持续时间，只能对其他N-1个存储体中的任一个进行读取操作。地址缓冲和解码架构包括控制逻辑电路，位于N个存储体中的每一个的地址选择电路和地址缓冲器电路。控制逻辑电路用于产生N个读取选择信号以选择用于读取操作的N个存储体中的一个存储单元和N个写入选择信号，以便为写入操作选择N个存储体的另一个存储体。每个地址选择电路被配置为从控制逻辑电路接收N个读选择信号中的相应一个和N个写入选择信号中的相应一个。地址缓冲器电路用于同时提供写入地址和读取地址以便访问核心存储器单元。将写入和读取地址的各个第一部分提供给控制逻辑电路以产生相应的N个读取选择信号和N个写入选择信号。将写入和读取地址的相应第二部分提供给相应的地址选择电路。

10. 发明申请

US20090273498A1 INTERRUPT BASED MULTIPLEXED CURRENT LIMIT CIRCUIT 有权
标题翻译：基于中断的多路电流限制电路
公开(公告)号：US20090273498A1
公开(公告)日：2009-11-05
申请号：US12114693
申请日：2008-05-02
申请人： Dimitry Goder , Zongqi Hu , Kendra Nguyen
发明人： Dimitry Goder , Zongqi Hu , Kendra Nguyen
IPC分类号： H03M1/12
CPC分类号： H02M3/157 , H02M3/1584 , H02M2001/0009
摘要： A switching voltage regulator includes, in part, N output stages, a loop ADC, a multiplexer, a current ADC, and an interrupt block. The loop analog-to-digital converter receives the N output voltages each of which is associated with one of N channels. The loop ADC is adapted to vary a duty cycle of N signals each applied to one of the N output stages that generate the N output voltages. The interrupt block is adapted to enable the multiplexer to couple an output stage to the current ADC if a difference between voltages sensed at an output stage during at least two sampling times exceeds a predefined threshold value. The interrupt block may also be adapted to enable the multiplexer to couple an output stage to the current ADC block if a difference between a voltage sensed at the output stage and a reference voltage exceeds a predefined threshold value.
摘要翻译：开关电压调节器部分地包括N个输出级，环路ADC，多路复用器，电流ADC和中断块。环路模数转换器接收N个输出电压，每个N个输出电压与N个通道中的一个相关联。环路ADC适于改变每个施加到产生N个输出电压的N个输出级中的一个的N个信号的占空比。如果在至少两个采样时间期间在输出级感测的电压之间的差超过预定义的阈值，则中断块适于使多路复用器将输出级耦合到当前ADC。如果在输出级感测的电压与参考电压之间的差超过预定义的阈值，则中断块还可以适于使多路复用器将输出级耦合到当前ADC模块。

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