Circuit configuration for generating a reference voltage for reading a ferroelectric memory
    13.
    发明授权
    Circuit configuration for generating a reference voltage for reading a ferroelectric memory 有权
    用于产生用于读取铁电存储器的参考电压的电路配置

    公开(公告)号:US06392918B2

    公开(公告)日:2002-05-21

    申请号:US09817578

    申请日:2001-03-26

    IPC分类号: G11C1122

    CPC分类号: G11C11/22

    摘要: A circuit for generating a reference voltage for the reading out from and the evaluation of read output signals which are read out with a constant plate voltage from storage cells of a ferroelectric memory via bit lines. In the circuit, a reference voltage device is formed of two reference cells that are subjected to the action of complementary signals. The reference cells can be simultaneously read out in order to generate the reference voltage in a selection and evaluation device.

    摘要翻译: 用于产生用于读出的参考电压的电路和用于经由位线从铁电存储器的存储单元以恒定板电压读出的读取输出信号的评估。 在该电路中,参考电压装置由经受互补信号的作用的两个参考单元形成。 可以同时读出参考单元,以便在选择和评估装置中产生参考电压。

    Memory configuration including a plurality of resistive ferroelectric memory cells
    14.
    发明授权
    Memory configuration including a plurality of resistive ferroelectric memory cells 失效
    存储器配置包括多个电阻型铁电存储单元

    公开(公告)号:US06452830B2

    公开(公告)日:2002-09-17

    申请号:US09767805

    申请日:2001-01-22

    IPC分类号: G11C1122

    CPC分类号: G11C11/22

    摘要: A memory configuration includes a plurality of resistive ferroelectric memory cells. Each of the memory cells includes a selection transistor and a storage capacitor. The selection transistor has a given zone of a first conductivity type. The storage capacitor has a first and a second electrode. The first electrode is supplied with a fixed cell plate voltage, the second electrode is connected to the given zone of the first conductivity type. A source and a drain of a MOS transistor are supplied with the fixed cell plate voltage. The channel of the MOS transistor has a channel length extending over at least two of the memory cells. The given zone of the first conductivity type is connected, via a resistor, to the channel of the MOS transistor such that the given zone is electrically connected to the first electrode of the storage capacitor via the resistor and the MOS transistor.

    摘要翻译: 存储器配置包括多个电阻式铁电存储单元。 每个存储单元包括选择晶体管和存储电容器。 选择晶体管具有第一导电类型的给定区域。 存储电容器具有第一和第二电极。 第一电极被提供有固定电池板电压,第二电极连接到第一导电类型的给定区域。 MOS晶体管的源极和漏极被提供有固定电池板电压。 MOS晶体管的沟道具有在至少两个存储单元上延伸的沟道长度。 第一导电类型的给定区域经由电阻器连接到MOS晶体管的沟道,使得给定区域经由电阻器和MOS晶体管电连接到存储电容器的第一电极。

    Integrated buffer circuit which functions independently of fluctuations
on the supply voltage
    15.
    发明授权
    Integrated buffer circuit which functions independently of fluctuations on the supply voltage 失效
    集成缓冲电路,独立于电源电压波动起作用

    公开(公告)号:US5774014A

    公开(公告)日:1998-06-30

    申请号:US627568

    申请日:1996-04-04

    CPC分类号: H03K19/00384 G05F3/262

    摘要: An integrated buffer circuit includes a first series circuit connected between a first supply potential and a second supply potential (ground). The first series circuit has a voltage-controlled first constant current source, a first field effect transistor having a gate forming an input of the buffer circuit, a circuit node between the first current source and the first field effect transistor forming an output of the buffer circuit, and a first control input for controlling the first current source with a reference potential having a constant potential difference relative to the first supply potential. A second series circuit is connected between the first supply potential and the second supply potential. The second series circuit has a first resistor, a second constant current source furnishing a current being independent of the first supply potential, and a circuit node between the first resistor and the second current source, establishing the reference potential and being connected to the first control input of the first current source.

    摘要翻译: 集成缓冲电路包括连接在第一电源电位和第二电源电位(地)之间的第一串联电路。 第一串联电路具有电压控制的第一恒流源,第一场效应晶体管,其栅极形成缓冲电路的输入,第一电流源与第一场效应晶体管之间的电路节点,形成缓冲器的输出 电路和第一控制输入,用于以相对于第一电源电位具有恒定电位差的参考电位来控制第一电流源。 第二串联电路连接在第一电源电位和第二电源电位之间。 第二串联电路具有第一电阻器,提供独立于第一电源电位的电流的第二恒流源,以及第一电阻器和第二电流源之间的电路节点,建立参考电位并连接到第一控制器 输入第一个电流源。

    Evaluation configuration for semiconductor memories
    16.
    发明授权
    Evaluation configuration for semiconductor memories 失效
    半导体存储器的评估配置

    公开(公告)号:US06806550B2

    公开(公告)日:2004-10-19

    申请号:US10244258

    申请日:2002-09-16

    IPC分类号: H01L2900

    摘要: An evaluation configuration has a first MOS evaluation stage, an isolation stage, and a bipolar evaluation stage. The isolation stage is connected between the first MOS evaluation stage and the bipolar evaluation stage. The isolation stage isolates the first MOS evaluation stage from the bipolar evaluation stage. The evaluation configuration can reliably detect very small read signals and allows a high integration density.

    摘要翻译: 评估配置具有第一MOS评估阶段,隔离阶段和双极性评估阶段。 隔离级连接在第一MOS评估阶段和双极性评估阶段之间。 隔离阶段将第一个MOS评估阶段与双相评估阶段隔离开来。 评估配置可以可靠地检测非常小的读取信号并且允许高的集成密度。

    Memory configuration including a plurality of resistive ferroelectric memory cells
    17.
    发明授权
    Memory configuration including a plurality of resistive ferroelectric memory cells 失效
    存储器配置包括多个电阻型铁电存储单元

    公开(公告)号:US06404668B2

    公开(公告)日:2002-06-11

    申请号:US09767807

    申请日:2001-01-22

    IPC分类号: G11C1122

    CPC分类号: G11C11/22

    摘要: A memory configuration includes a plurality of resistive ferroelectric memory cells. Each of the resistive ferroelectric memory cells includes a selection transistor and a storage capacitor. The selection transistor has a given zone of a first conductivity type. The storage capacitor has a first electrode and a second electrode. The first electrode is supplied with a fixed cell plate voltage. The second electrode is connected to the given zone of the first conductivity type. A semiconductor body of a second conductivity type opposite the first conductivity type is provided. A line is formed by a highly doped zone of the first conductivity type. The line is supplied with the cell plate voltage. The second electrode of the storage capacitor is connected via the resistor to the line.

    摘要翻译: 存储器配置包括多个电阻式铁电存储单元。 每个电阻型铁电存储单元包括选择晶体管和存储电容器。 选择晶体管具有第一导电类型的给定区域。 存储电容器具有第一电极和第二电极。 第一电极被提供有固定的电池板电压。 第二电极连接到第一导电类型的给定区域。 提供了与第一导电类型相反的第二导电类型的半导体本体。 线由第一导电类型的高掺杂区形成。 线路提供了电池板电压。 存储电容器的第二电极通过电阻器连接到线路。

    Method for nondestructively reading memory cells of an MRAM memory
    19.
    发明授权
    Method for nondestructively reading memory cells of an MRAM memory 有权
    用于非破坏性地读取MRAM存储器的存储单元的方法

    公开(公告)号:US06388917B2

    公开(公告)日:2002-05-14

    申请号:US09915983

    申请日:2001-07-25

    IPC分类号: G11C1115

    CPC分类号: G11C11/16

    摘要: A method for nondestructively reading memory cells of an MRAM memory, which includes steps of: determining a standard resistance of a memory cell at a voltage at which a resistance of the memory cell is independent of a stored content of the memory cell; determining an actual resistance of the memory cell at a voltage at which the resistance of the memory cell is dependent on the stored content of the memory cell; obtaining a normalized actual resistance of the memory cell by dividing the actual resistance by the standard resistance; obtaining a comparison result by comparing the normalized actual resistance with a reference value; and detecting the stored content of the memory cell dependent on the comparison result.

    摘要翻译: 一种用于非破坏性地读取MRAM存储器的存储单元的方法,其包括以下步骤:以所述存储器单元的电阻独立于存储单元的存储内容的电压确定存储单元的标准电阻; 在存储单元的电阻取决于存储单元的存储内容的电压下确定存储单元的实际电阻; 通过将实际电阻除以标准电阻来获得存储单元的归一化实际电阻; 通过将标准化的实际电阻与参考值进行比较来获得比较结果; 以及根据比较结果检测存储单元的存储内容。