On-chip repair of defective address of core flash memory cells
    2.
    发明授权
    On-chip repair of defective address of core flash memory cells 有权
    核心闪存单元故障地址的片上修复

    公开(公告)号:US06631086B1

    公开(公告)日:2003-10-07

    申请号:US10200544

    申请日:2002-07-22

    IPC分类号: G11C1606

    摘要: In a method and system for repairing defective flash memory cells fabricated on a semiconductor substrate, a repair controller and a plurality of voltage sources are fabricated on the semiconductor substrate. The repair controller controls the voltage sources to apply programming voltages on respective CAM (content addressable memory) flash memory cells in a JUICE state for replacing the defective flash memory cells with a corresponding redundancy element of flash memory cells. In addition, a FAILREP logic is fabricated on the semiconductor substrate for entering a HANG state if no redundancy element of flash memory cells is available or if the defective flash memory cells have been previously repaired.

    摘要翻译: 在用于修复在半导体衬底上制造的有缺陷的闪速存储器单元的方法和系统中,在半导体衬底上制造修复控制器和多个电压源。 修理控制器控制电压源以将编程电压施加在JUICE状态的相应CAM(内容可寻址存储器)闪存单元上,以用闪存单元的相应冗余元件代替有缺陷的闪存单元。 此外,如果没有闪存单元的冗余元件可用或者有缺陷的闪速存储器单元已经被修复,则在半导体衬底上制造FAILREP逻辑用于进入HANG状态。

    Diagnostic mode for testing functionality of BIST (built-in-self-test) back-end state machine
    3.
    发明授权
    Diagnostic mode for testing functionality of BIST (built-in-self-test) back-end state machine 有权
    用于测试BIST(内置自检)后端状态机的功能的诊断模式

    公开(公告)号:US07028240B1

    公开(公告)日:2006-04-11

    申请号:US10200526

    申请日:2002-07-22

    IPC分类号: G01R3/28

    CPC分类号: G11C29/02 G11C16/04 G11C29/16

    摘要: In a method and system for diagnosing a back-end state machine used for testing flash memory cells fabricated on a semiconductor substrate, a signal selector and a diagnostic matching logic are fabricated on the semiconductor substrate. The diagnostic matching logic sets a generated match output to a pass or fail state depending on control variables from the back-end state machine. The signal selector selects the generated match output to be used in a verify step of a BIST (built-in-self-test) mode, if a diagnostic mode is invoked. The back-end state machine performs a plurality of BIST modes with the generated match output, for testing the functionality of the back-end state machine.

    摘要翻译: 在用于诊断用于测试在半导体衬底上制造的闪存单元的后端状态机的方法和系统中,在半导体衬底上制造信号选择器和诊断匹配逻辑。 诊断匹配逻辑根据后端状态机的控制变量将生成的匹配输出设置为通过或失败状态。 如果调用诊断模式,则信号选择器选择要在BIST(内置自检)模式的验证步骤中使用的生成的匹配输出。 后端状态机利用生成的匹配输出执行多个BIST模式,用于测试后端状态机的功能。

    Generation of margining voltage on-chip during testing CAM portion of flash memory device
    4.
    发明授权
    Generation of margining voltage on-chip during testing CAM portion of flash memory device 失效
    在闪速存储器件的测试CAM部分期间片上产生裕度电压

    公开(公告)号:US06707718B1

    公开(公告)日:2004-03-16

    申请号:US10200539

    申请日:2002-07-22

    IPC分类号: G11C1606

    摘要: For generating a margining voltage for biasing a gate of a CAM (content addressable memory) cell of a flash memory device fabricated on a semiconductor wafer, a high voltage source is provided with a voltage generator fabricated on the semiconductor wafer. A low voltage source is provided from a node coupled to the voltage generator fabricated on the semiconductor wafer. For example, the voltage generator for providing the high voltage source includes a voltage regulator and a charge pump fabricated on the semiconductor wafer, and the low voltage source is the ground node. In addition, a first transistor is coupled to the high voltage source, and a second transistor is coupled to the low voltage source. A first resistor is coupled between the first transistor and an output node, and a second resistor coupled between the second transistor and the output node. The margining voltage is generated at the output node. The first resistor and the second resistor form a resistive voltage divider at the output node between the high voltage source and the low voltage source when the first transistor and the second transistor are turned on. A logic circuit turns on the first transistor and the second transistor when a first set of control signals indicate that program margining of the CAM cell during a BIST (built-in-self-test) mode is invoked. The first transistor, the second transistor, the first resistor, the second resistor, and the logic circuit are fabricated on the semiconductor wafer. In another embodiment of the present invention, the logic circuit turns off the first transistor and turns on the second transistor such that the output node discharges to a voltage of the low voltage source for erase margining of the CAM cell.

    摘要翻译: 为了产生用于偏置制造在半导体晶片上的闪存器件的CAM(内容可寻址存储器)单元的栅极的裕度电压,高电压源设置有制造在半导体晶片上的电压发生器。 从耦合到制造在半导体晶片上的电压发生器的节点提供低电压源。 例如,用于提供高电压源的电压发生器包括在半导体晶片上制造的电压调节器和电荷泵,而低电压源是接地节点。 此外,第一晶体管耦合到高电压源,第二晶体管耦合到低电压源。 第一电阻器耦合在第一晶体管和输出节点之间,第二电阻耦合在第二晶体管和输出节点之间。 在输出节点产生裕度电压。 当第一晶体管和第二晶体管导通时,第一电阻器和第二电阻器在高电压源和低电压源之间的输出节点处形成电阻分压器。 当第一组控制信号指示在BIST(内置自测试)模式期间CAM单元的编程余量被调用时,逻辑电路接通第一晶体管和第二晶体管。 在半导体晶片上制造第一晶体管,第二晶体管,第一电阻器,第二电阻器和逻辑电路。 在本发明的另一个实施例中,逻辑电路关闭第一晶体管并导通第二晶体管,使得输出节点放电到低电压源的电压以消除CAM单元的擦除裕度。

    Partial local self boosting for NAND
    5.
    发明授权
    Partial local self boosting for NAND 有权
    NAND的部分本地自增强

    公开(公告)号:US08638609B2

    公开(公告)日:2014-01-28

    申请号:US12783351

    申请日:2010-05-19

    IPC分类号: G11C11/34

    摘要: A memory system is programmed with minimal program disturb and reduced junction and channel leakage during self-boosting. Pre-charging bias signals are applied to word lines adjacent to a selected word line before a program signal is applied to the selected word line and a pass signal is applied to the remaining word lines. The pre-charging bias signals apply a pre-charge to the memory cells. The pre-charging bias signals are chosen to improve the isolation of the memory cells on word lines adjacent to the selected word line, improve self boost efficiency and reduce current leakage to prevent or reduce program disturb and/or programming errors especially in the inhibited memory cells on the selected word line.

    摘要翻译: 存储器系统被编程为在自增强期间具有最少的程序干扰和减少的结和通道泄漏。 在将程序信号施加到所选择的字线之前,预充电偏置信号被施加到与所选字线相邻的字线,并且将通过信号施加到剩余的字线。 预充电偏压信号将预充电施加到存储器单元。 选择预充电偏压信号以改善与所选字线相邻的字线上的存储器单元的隔离,提高自升压效率并减少电流泄漏以防止或减少程序干扰和/或编程错误,特别是在禁止的存储器 所选字线上的单元格。

    Erasing and programming an organic memory device and method of fabricating
    6.
    发明授权
    Erasing and programming an organic memory device and method of fabricating 有权
    擦除和编程有机存储器件及其制造方法

    公开(公告)号:US06960783B2

    公开(公告)日:2005-11-01

    申请号:US10436786

    申请日:2003-05-13

    IPC分类号: G11C11/56 G11C13/02 H01L35/24

    摘要: An organic memory cell made of two electrodes with a selectively conductive media between the two electrodes is disclosed. The selectively conductive media contains an organic layer and passive layer. The selectively conductive media is programmed by applying bias voltages that program a desired impedance state for a memory cell. The desired impedance state represents one or more bits of information and the memory cell does not require constant power or refresh cycles to maintain the desired impedance state. Furthermore, the selectively conductive media is read by applying a current and reading the impedance of the media in order to determine the impedance state of the memory cell. Methods of making the organic memory devices/cells, methods of using the organic memory devices/cells, and devices such as computers containing the organic memory devices/cells are also disclosed.

    摘要翻译: 公开了一种由在两个电极之间具有选择性导电介质的两个电极制成的有机存储单元。 选择性导电介质包含有机层和无源层。 选择性导电介质通过施加偏置电压来编程,该偏置电压为存储器单元编程期望的阻抗状态。 期望的阻抗状态表示信息的一个或多个位,并且存储单元不需要恒定的功率或刷新周期来保持所需的阻抗状态。 此外,通过施加电流并读取介质的阻抗来读取选择性导电介质,以便确定存储单元的阻抗状态。 还公开了制造有机存储器件/单元的方法,使用有机存储器件/单元的方法,以及诸如包含有机存储器件/单元的计算机的器件。

    Multiple byte channel hot electron programming using ramped gate and source bias voltage
    7.
    发明授权
    Multiple byte channel hot electron programming using ramped gate and source bias voltage 有权
    使用斜坡栅极和源偏置电压的多字节通道热电子编程

    公开(公告)号:US06275415B1

    公开(公告)日:2001-08-14

    申请号:US09416563

    申请日:1999-10-12

    IPC分类号: G11C1604

    CPC分类号: G11C16/12

    摘要: A memory device having multiple banks, each bank having multiple memory cells and a method of programming multiple memory cells in the device wherein a bias voltage is applied to a common source terminal of the multiple memory cells and a time varying voltage is applied to gates of the memory cells that are to be programmed. In one embodiment, the voltage applied to the gates of the memory cells to be programmed is a ramp voltage. In a second embodiment, the voltage applied to the gates of the memory cells to be programmed is an increasing step voltage. In another embodiment, the bias voltage applied to the common source terminal and the voltage applied to the control gates of the memory cells to be programmed are selected so that the current flowing through cells being programmed is reduced and that the leakage current from memory cells that are not to be programmed is substantially eliminated. In another embodiment, a bias voltage is applied to the common source terminal and a bias voltage is applied to the common well voltage. The combination of the voltages applied to the control gates and to the sources decreases loading on the bitlines to ensure that VDS does not fall below a required level necessary for the maintenance of the hot carrier effect during programming. A bias voltage can also be applied to the wells of the memory cells while the common source terminal is held at ground. Feedback control of the programming gate voltages can be used to control the power required for programming.

    摘要翻译: 一种具有多个存储单元的存储器件,每个存储体具有多个存储器单元,以及一种编程器件中的多个存储器单元的方法,其中偏置电压施加到多个存储器单元的公共源极端子,并且将时变电压施加到 要编程的存储单元。 在一个实施例中,施加到要编程的存储器单元的栅极的电压是斜坡电压。 在第二实施例中,施加到待编程的存储器单元的栅极的电压是增加的阶梯电压。 在另一个实施例中,选择施加到公共源极端子的偏置电压和施加到要编程的存储器单元的控制栅极的电压,使得流过被编程的单元的电流减小,并且来自存储器单元的泄漏电流 不被编程的基本上被消除。 在另一个实施例中,将偏置电压施加到公共源极端子,并将偏置电压施加到公共井电压。 施加到控制栅极和源极的电压的组合减少了位线上的负载,以确保VDS不会降低到在编程期间维持热载流子效应所需的水平。 偏置电压也可以施加到存储单元的阱,同时公共源极保持在地。 编程栅极电压的反馈控制可用于控制编程所需的功率。

    Control of memory devices possessing variable resistance characteristics
    9.
    发明申请
    Control of memory devices possessing variable resistance characteristics 有权
    具有可变电阻特性的存储器件的控制

    公开(公告)号:US20060067105A1

    公开(公告)日:2006-03-30

    申请号:US10983919

    申请日:2004-11-08

    IPC分类号: G11C11/00 G11C7/00

    摘要: Systems and methods employing at least one constant current source to facilitate programming of an organic memory cell and/or employing at least one constant voltage source to facilitate erasing of a memory device. The present invention is utilized in single memory cell devices and memory cell arrays. Employing a constant current source prevents current spikes during programming and allows accurate control of a memory cell's state during write cycles, independent of the cell's resistance. Employing a constant voltage source provides a stable load for memory cells during erase cycles and allows for accurate voltage control across the memory cell despite large dynamic changes in cell resistance during the process.

    摘要翻译: 采用至少一个恒定电流源的系统和方法促进有机存储器单元的编程和/或采用至少一个恒定电压源以便于擦除存储器件。 本发明用于单个存储器单元装置和存储单元阵列。 使用恒流源防止编程期间的电流尖峰,并允许在写周期期间精确控制存储单元的状态,而与电池的电阻无关。 使用恒定电压源在擦除周期期间为存储器单元提供稳定的负载,并且允许跨过存储器单元的精确的电压控制,尽管在该过程中电池电阻的大的动态变化。

    Control of memory arrays utilizing zener diode-like devices
    10.
    发明授权
    Control of memory arrays utilizing zener diode-like devices 有权
    使用齐纳二极管状器件来控制存储器阵列

    公开(公告)号:US06943370B2

    公开(公告)日:2005-09-13

    申请号:US10882538

    申请日:2004-06-30

    摘要: The present invention facilitates semiconductor devices by aiding the efficiency in the way individual devices change states in a semiconductor array. State change voltages can be applied to a single device in the array of semiconductor devices without the need for transistor-type voltage controls. The diodic effect of the present invention facilitates this activity by allowing specific voltage levels necessary for state changes to only occur at the desired device. In this manner, an array of devices can be programmed with varying data or states without utilizing transistor technology. The present invention also allows for an extremely efficient method of producing these types of devices, eliminating the need to manufacture costly external voltage controlling semiconductor devices.

    摘要翻译: 本发明通过帮助单个器件改变半导体阵列中的状态的方式来帮助半导体器件。 可以将状态变化电压施加到半导体器件阵列中的单个器件,而不需要晶体管型电压控制。 本发明的二极体效应通过允许状态改变所需的特定电压水平仅发生在期望的装置来促进该活动。 以这种方式,可以在不利用晶体管技术的情况下用不同的数据或状态对器件阵列进行编程。 本发明还允许制造这些类型的器件的非常有效的方法,消除了制造昂贵的外部电压控制半导体器件的需要。