Magnetic tunneling junction antifuse device
    2.
    发明授权
    Magnetic tunneling junction antifuse device 有权
    磁隧道结反熔丝装置

    公开(公告)号:US07176065B2

    公开(公告)日:2007-02-13

    申请号:US11123916

    申请日:2005-05-06

    IPC分类号: H01L21/82

    摘要: An MRAM device having a plurality of MRAM cells formed of a fixed magnetic layer, a second soft magnetic layer and a dielectric layer interposed between the fixed magnetic layer and the soft magnetic layer. The MRAM cells are all formed simultaneously and at least some of the MRAM cells are designed to function as antifuse devices whereby the application of a selected electrical potential can short the antifuse device to thereby affect the functionality of the MRAM device.

    摘要翻译: 具有由固定磁性层形成的多个MRAM单元的MRAM器件,第二软磁性层和介于该固定磁性层与软磁性层之间的电介质层。 MRAM单元都是同时形成的,并且至少一些MRAM单元被设计为用作反熔丝器件,由此施加所选择的电位可以使反熔丝器件短路从而影响MRAM器件的功能。

    Magnetic tunneling junction antifuse device
    3.
    发明授权
    Magnetic tunneling junction antifuse device 有权
    磁隧道结反熔丝装置

    公开(公告)号:US06919613B2

    公开(公告)日:2005-07-19

    申请号:US10820415

    申请日:2004-04-08

    IPC分类号: G11C11/15 G11C17/16 H01L29/00

    摘要: An MRAM device having a plurality of MRAM cells formed of a fixed magnetic layer, a second soft magnetic layer and a dielectric layer interposed between the fixed magnetic layer and the soft magnetic layer. The MRAM cells are all formed simultaneously and at least some of the MRAM cells are designed to function as antifuse devices whereby the application of a selected electrical potential can short the antifuse device to thereby affect the functionality of the MRAM device.

    摘要翻译: 具有由固定磁性层形成的多个MRAM单元的MRAM器件,第二软磁性层和介于该固定磁性层与软磁性层之间的电介质层。 MRAM单元都是同时形成的,并且至少一些MRAM单元被设计为用作反熔丝器件,由此施加所选择的电位可以使反熔丝器件短路从而影响MRAM器件的功能。

    Matrix addressable display with electrostatic discharge protection
    5.
    发明授权
    Matrix addressable display with electrostatic discharge protection 失效
    具有静电放电保护的矩阵可寻址显示

    公开(公告)号:US06356250B1

    公开(公告)日:2002-03-12

    申请号:US09640826

    申请日:2000-08-16

    IPC分类号: G09G328

    摘要: A field emission display includes electrostatic discharge protection circuits coupled to an emitter substrate and an extraction grid. In the preferred embodiment, the electrostatic discharge circuit includes diodes reverse biased between grid sections and a first reference potential or between row lines and a second reference potential. The diodes provide a current path to discharge static voltage and thereby prevent a high voltage differential from being maintained between the emitter sets and the extraction grids. The diodes thereby prevent the emitter sets from emitting electrons at a high rate that may damage or destroy the emitter sets. In one embodiment, the diodes are coupled directly between the grid sections and the row lines. In one embodiment, the diodes are formed in an insulative layer carrying the grid sections. In another embodiment, the diodes are integrated into the emitter substrate.

    摘要翻译: 场发射显示器包括耦合到发射极衬底和提取栅极的静电放电保护电路。 在优选实施例中,静电放电电路包括在网格部分和第一参考电位之间或在行线和第二参考电位之间反向偏置的二极管。 二极管提供电流路径来放电静电压,从而防止在发射极组和提取栅之间保持高电压差。 因此,二极管可防止发射极组以可能损坏或破坏发射极组的高速率发射电子。 在一个实施例中,二极管直接连接在网格部分和行线之间。 在一个实施例中,二极管形成在承载网格部分的绝缘层中。 在另一个实施例中,二极管被集成到发射器衬底中。

    Analog to pulse width converter for field emission displays
    6.
    发明授权
    Analog to pulse width converter for field emission displays 失效
    用于场发射显示器的模拟脉冲宽度转换器

    公开(公告)号:US6069451A

    公开(公告)日:2000-05-30

    申请号:US991094

    申请日:1997-12-15

    IPC分类号: G09G3/10

    摘要: A field emission display ("FED") is disclosed having a gray scale range. Input into the FED, initially, is an analog signal input. The FED, by employing an analog to pulse width converter, subsequently converts the analog input to a pulse width output, the width of which directly correlates to the amplitude of the analog input signal. To achieve this design, the analog to pulse width converter comprises a sampler for sampling the analog signal at a predetermined frequency, thereby creating a plurality of samples corresponding to the input voltage. Further, the converter comprises means for holding each of the samples. The output of the holding means is subsequently coupled with a load responsive to the output of the holding means. In one embodiment of the present invention, this load comprises a voltage controlled resistance. The voltage controlled resistance can comprise a convertor for converting each of the samples to a current source and a load for creating a voltage ramp. The voltage ramp is subsequently input to a buffer for comparing the load output with a predetermined threshold. By this design, a pulse width signal is thereby created, the width of which ranges between a minimum and a maximum value, the minimum and the maximum values corresponding to the gray scale range.

    摘要翻译: 公开了具有灰度范围的场发射显示(“FED”)。 最初输入FED是模拟信号输入。 FED通过采用模拟脉冲宽度转换器,随后将模拟输入转换为脉冲宽度输出,其宽度与模拟输入信号的幅度直接相关。 为了实现这一设计,模拟脉冲宽度转换器包括一个采样器,用于以预定频率对模拟信号进行采样,从而产生对应于输入电压的多个采样。 此外,转换器包括用于保持每个样品的装置。 随后,保持装置的输出与响应于保持装置的输出的负载耦合。 在本发明的一个实施例中,该负载包括受电压控制的电阻。 电压控制电阻可以包括用于将每个样本转换成电流源的转换器和用于产生电压斜坡的负载。 随后将电压斜坡输入到缓冲器,用于将负载输出与预定阈值进行比较。 通过这种设计,由此产生一个脉冲宽度信号,其宽度范围在最小值和最大值之间,最小值和最大值对应于灰度级范围。

    Field emission display having pulsed capacitance current control
    7.
    发明授权
    Field emission display having pulsed capacitance current control 失效
    具有脉冲电容电流控制的场发射显示

    公开(公告)号:US5894293A

    公开(公告)日:1999-04-13

    申请号:US637352

    申请日:1996-04-24

    IPC分类号: G09G3/22

    摘要: A current controlled field emission display includes a pair of pulsed transistors that charge and discharge capacitance within the field emission display. The capacitance may be a separate circuit element or may be the parasitic capacitance of the integrated transistors and related circuitry. Various circuit configurations are employed to control charge transfer to and from the capacitance. The control circuit is driven by a series of pulse pairs where the first pulse in each pair controls charging of the capacitance and the second pulse controls discharging of the capacitance through the emitter set.

    摘要翻译: 电流控制的场致发射显示器包括在场致发射显示器内充电和放电电容的一对脉冲晶体管。 电容可以是单独的电路元件,或者可以是集成晶体管和相关电路的寄生电容。 采用各种电路配置来控制电容与电容的电荷转移。 控制电路由一系列脉冲对驱动,其中每对中的第一个脉冲控制电容的充电,第二个脉冲通过发射器组控制电容的放电。

    Expandable data width SAM for a multiport RAM
    8.
    发明授权
    Expandable data width SAM for a multiport RAM 失效
    多端口RAM的可扩展数据宽度SAM

    公开(公告)号:US5657289A

    公开(公告)日:1997-08-12

    申请号:US511778

    申请日:1995-08-30

    摘要: A multiport memory is described which includes a random access memory (RAM) and serial access memories (SAMs). The multiport memory is well suited for storing asynchronous transfer mode (ATM) data cells. Control circuitry is provided to allow the multiport memory to be easily configured for operating at different input data rates. This is accomplished by configuring several of the SAMs to store a portion of an input ATM cell on an input clock cycle. The full ATM cell is stored in less clock cycles and can be transferred from the SAMs to the RAM in a single transfer cycle.

    摘要翻译: 描述了包括随机存取存储器(RAM)和串行存取存储器(SAM))的多端口存储器。 多端口存储器非常适用于存储异步传输模式(ATM)数据单元。 提供控制电路以允许容易地配置多端口存储器,以便以不同的输入数据速率进行操作。 这通过配置几个SAM来在输入时钟周期上存储输入ATM信元的一部分来实现。 完整的ATM信元以更少的时钟周期存储,并且可以在单个传输周期内从SAM传输到RAM。

    Controlling pixel brightness in a field emission display using circuits for sampling and discharging
    10.
    发明授权
    Controlling pixel brightness in a field emission display using circuits for sampling and discharging 失效
    使用采样和放电电路控制场发射显示器中的像素亮度

    公开(公告)号:US06380913B1

    公开(公告)日:2002-04-30

    申请号:US09189085

    申请日:1998-11-09

    IPC分类号: G09G322

    摘要: A flat panel display, such as a Field Emission Display (“FED”), is disclosed having a current control circuit. Input into the display, initially, is an analog signal having an amplitude. In one embodiment, the current control circuit includes a converter for converting the analog input signal to a sawtooth signal having a height and width. Then, the level of the sawtooth signal is compared to a voltage level to establish a pulse width of an emitter current. The emitter current is thus controlled by a pulse width modulation approach. In another embodiment, the current control circuit traps a column voltage on a parasitic capacitance. The trapped voltage then controls the gate of a transistor to control current flow from the emitter set to ground.

    摘要翻译: 公开了一种具有电流控制电路的平板显示器,例如场发射显示器(“FED”)。 最初输入到显示器是具有振幅的模拟信号。 在一个实施例中,电流控制电路包括用于将模拟输入信号转换成具有高度和宽度的锯齿波信号的转换器。 然后,将锯齿波信号的电平与电压电平进行比较,以建立发射极电流的脉冲宽度。 因此,通过脉冲宽度调制方法来控制发射极电流。 在另一个实施例中,电流控制电路捕获寄生电容上的列电压。 捕获的电压然后控制晶体管的栅极以控制从发射极组到地的电流。