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    • 3. 发明授权
    • Method and apparatus for pre-charging negative pump MOS regulation capacitors
    • 负电泵MOS调节电容器预充电方法和装置
    • US07057949B1
    • 2006-06-06
    • US10050342
    • 2002-01-16
    • Feng PanWeng Fook LeeEdward V. Bautista, Jr.Santosh K. Yachareni
    • Feng PanWeng Fook LeeEdward V. Bautista, Jr.Santosh K. Yachareni
    • G11C7/00
    • G11C5/145G11C16/30
    • Methods and apparatus are disclosed for erasing a core memory cell using a negative gate voltage in a semiconductor memory device, wherein negative pump MOS regulation capacitors are pre-charged according to a pre-charge signal during a core cell erase operation. A negative voltage pump is then regulated using the pre-charged negative pump MOS regulation capacitors to provide the negative gate voltage. Apparatus is disclosed for pre-charging negative pump MOS regulation capacitors during a core cell erase operation in a memory device, which comprises a switch connected between a reference voltage and the negative pump MOS regulation capacitors, and a pre-charge control circuit providing a pre-charge signal to the switch to selectively connect the reference voltage to the negative pump MOS regulation capacitors for pre-charging thereof in an erase operation.
    • 公开了用于在半导体存储器件中使用负栅极电压擦除核心存储器单元的方法和装置,其中在核心单元擦除操作期间,根据预充电信号对负泵MOS调节电容器进行预充电。 然后使用预充电的负泵MOS调节电容器调节负电压泵,以提供负栅极电压。 公开了一种用于在存储器件中的核心单元擦除操作期间对负泵MOS调节电容器预充电的装置,其包括连接在参考电压和负泵MOS调节电容器之间的开关,以及提供预充电的预充电控制电路 充电信号到开关,以选择性地将参考电压连接到负泵MOS调节电容器,以在擦除操作中对其进行预充电。
    • 5. 发明授权
    • Distributing CFI devices in existing decoders
    • 在现有解码器中分配CFI设备
    • US6118694A
    • 2000-09-12
    • US417731
    • 1999-10-14
    • Colin S. BillFeng Pan
    • Colin S. BillFeng Pan
    • G11C7/10G11C8/10G11C11/4096G11C14/00
    • G11C8/10G11C11/4096G11C7/1048
    • The present invention discloses a CFI bit line decoder for a memory device that is capable of storing common flash interface data. In the preferred embodiment, the CFI bit line decoder has at least one bit line decoder circuit including at least one pass gate and a plurality of bit line pass gates, wherein each pass gate is electrically connected with at least one pass gate. In addition, the CFI bit line decoder includes at least one CFI storage circuit that has at least one storage cell electrically connected with the bit line decoder circuit. Each storage cell is in turn electrically connected with the bit line pass gate of the bit line decoder circuit. During CFI mode, a vertical address signal is used to enable a respective pass gate and a CFI address signal is used to enable a respective storage cell. A read circuit is then used to sense the logic state of the storage cell so that a peripheral device can use the data.
    • 本发明公开了一种能够存储公共闪存接口数据的存储器件的CFI位线解码器。 在优选实施例中,CFI位线解码器具有至少一个位线解码器电路,其包括至少一个传输门和多个位线传输门,其中每个传输门与至少一个传输门电连接。 此外,CFI位线解码器包括至少一个CFI存储电路,其具有与位线解码器电路电连接的至少一个存储单元。 每个存储单元又与位线解码器电路的位线传输门电连接。 在CFI模式期间,使用垂直地址信号来使能相应的通过门,并且使用CFI地址信号使能相应的存储单元。 然后,读取电路用于感测存储单元的逻辑状态,使得外围设备可以使用数据。
    • 6. 发明授权
    • Automated reference cell trimming verify
    • 自动参考细胞修剪验证
    • US06205056B1
    • 2001-03-20
    • US09524897
    • 2000-03-14
    • Feng PanColin S. Bill
    • Feng PanColin S. Bill
    • G11C1606
    • G11C16/3459G11C16/3454
    • A reference trimming verify circuit and method is provided for performing a program verify operation on a reference cell transistor in an array of Flash EEPROM memory cells. A reference current branch is used to generate a reference current corresponding to a predetermined overdrive voltage of the reference cell to be programmed. A drain current branch is coupled to the reference cell transistor to be programmed and generates a drain current at a fixed gate voltage applied to its control gate and at a predetermined drain voltage applied to its drain when the drain current is at the desired level. A comparator is used to compare a sensed voltage corresponding to the drain current and a reference voltage corresponding to the reference current. The comparator generates an output signal which is at a low logic level when the sensed voltage is less than the reference voltage and which is at a high logic level when the sensed voltage is greater than the reference voltage. A program pulse is applied to the reference transistor each time the comparator generates the low logic level and terminates the program pulse when the comparator generates the high logic level.
    • 提供了一种参考修整验证电路和方法,用于对闪存EEPROM存储单元阵列中的参考单元晶体管执行编程验证操作。 参考电流分支用于产生对应于要编程的参考单元的预定过驱动电压的参考电流。 漏极电流分支耦合到待编程的参考单元晶体管,并且当漏极电流处于期望电平时,以施加到其控制栅极的固定栅极电压和施加到其漏极的预定漏极电压产生漏极电流。 比较器用于比较对应于漏极电流的感测电压和对应于参考电流的参考电压。 当感测到的电压小于参考电压并且当感测的电压大于参考电压时,比较器产生处于低逻辑电平的输出信号,并且其处于高逻辑电平。 每当比较器产生低逻辑电平时,将编程脉冲施加到参考晶体管,并在比较器产生高逻辑电平时终止编程脉冲。
    • 7. 发明授权
    • Activation of wordline decoders to transfer a high voltage supply
    • 激活字线解码器传输高压电源
    • US06359824B1
    • 2002-03-19
    • US09592474
    • 2000-06-09
    • Colin S. BillJonathan Shi-Chang SuFeng Pan
    • Colin S. BillJonathan Shi-Chang SuFeng Pan
    • G11C800
    • G11C8/10G11C8/08
    • The present invention discloses a method and system for activating a plurality of wordline decoder circuits to transfer a predetermined high voltage to a plurality of wordlines during a test mode in a memory device. A plurality of wordline voltage supply circuits supply voltage for the wordlines. During operation, when the memory device is placed in a test mode requiring application of the predetermined high voltage to the wordlines, the wordline decoder circuits are activated. In addition, a first predetermined voltage that is approximately zero volts is supplied by the wordline voltage supply circuits to the wordline decoder circuits for a first predetermined amount of time. Once the wordline decoder circuits decode the respective wordlines, the first predetermined voltage is transferred to the respective wordlines. The wordline voltage supply circuits then supply a second predetermined voltage that is transferred to the respective wordlines by the still activated wordline decoder circuits for a second predetermined amount of time. Finally, the wordline voltage supply circuits supply a predetermined high voltage that is transferred to the respective wordlines by the still activated wordline decoder circuits for a third predetermined amount of time.
    • 本发明公开了一种用于激活多个字线解码器电路以在存储器件中的测试模式期间将预定高电压传送到多个字线的方法和系统。 多个字线电压电路为字线提供电压。 在操作期间,当存储器件被放置在需要对字线施加预定高电压的测试模式时,字线解码器电路被激活。 此外,大约零伏特的第一预定电压由字线电压供应电路在第一预定时间量内被提供给字线解码器电路。 一旦字线解码器电路解码相应的字线,则第一预定电压被传送到相应的字线。 然后,字线电压供应电路提供第二预定电压,该第二预定电压由静止激活的字线解码器电路传送到相应的字线第二预定时间量。 最后,字线电压供给电路通过静止激活的字线解码器电路提供预定的高电压,该预定的高电压被传送到相应的字线第三预定的时间量。