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    • 68. 发明专利
    • Semiconductor memory device and method for creating programming current pulse
    • 半导体存储器件和创建编程电流脉冲的方法
    • JP2011233220A
    • 2011-11-17
    • JP2011045360
    • 2011-03-02
    • Hynix Semiconductor Incハイニックス セミコンダクター インク
    • AHN YEON BOK
    • G11C13/00H01L27/105
    • G11C13/0004G11C8/08G11C8/18G11C13/0061G11C13/0069G11C2013/0078G11C2013/0092
    • PROBLEM TO BE SOLVED: To shorten a programming period and to progressively reduce a programming current pulse by adjusting a supplying period and a size of this programming current pulse.SOLUTION: The device includes: a section control signal generating part for creating a section control signal which is activated after a first setting period in response to a programming enable signal; a first control code generating part which creates a first writing control code to be updated periodically during a second setting period in response to the programming enable signal and activates the update of the first writing control code in response to the section control signal; a second writing control code generating part for creating a second writing control code to be activated during a predetermined period in response to the programming enable signal; and a data writing part for outputting a first programming current pulse having a size corresponding to a code combination of the first writing control code or a second programming current pulse having a size corresponding to the second writing control code.
    • 要解决的问题:通过调整编程电流脉冲的供应周期和大小,缩短编程周期并逐渐减小编程电流脉冲。 解决方案:该装置包括:区段控制信号产生部分,用于产生在第一设定周期之后响应于编程使能信号被激活的区段控制信号; 第一控制代码产生部分,响应于所述编程使能信号,在第二设置周期期间产生要周期性地更新的第一写入控制代码,并响应于所述部分控制信号激活所述第一写入控制代码的更新; 第二写入控制代码产生部分,用于响应于所述编程使能信号,在预定周期内创建要激活的第二写入控制代码; 以及数据写入部分,用于输出具有与第一写入控制代码或具有与第二写入控制代码对应的大小的第二编程电流脉冲的代码组合对应的大小的第一编程电流脉冲。 版权所有(C)2012,JPO&INPIT
    • 69. 发明专利
    • Memory cell programmed using temperature controlled set pulse
    • 使用温度控制设置脉冲编程的存储单元
    • JP2011060418A
    • 2011-03-24
    • JP2010254001
    • 2010-11-12
    • Qimonda North America Corpキモンダ ノース アメリカ コーポレイション
    • HAPP THOMASPHILIPP JAN BORIS
    • G11C13/00
    • G11C11/56G11C11/5678G11C13/0004G11C13/0069G11C2013/0078G11C2013/0092
    • PROBLEM TO BE SOLVED: To provide a phase change memory for programming the memory cell to either one state selected from three or more states. SOLUTION: Phase change materials in target memory cells 106a to 106d are reset by a write circuit 102. By the reset operation, the phase change materials of the target memory cells are heated beyond the melting point, and by rapidly cooling them, an amorphus state is attained. This amorphus state is one of three or more states of the respective memory cells 106a to 106d and the highest resistant state is provided. By the write circuit 102, either one state selected from three or more states is programmed to the target memory cell. The write circuit 102 supplies a signal to the target memory cell to crystalize a part of the phase change materials, thereby a resistance value of the target memory cell is lowered. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供用于将存储器单元编程为从三个或更多个状态中选择的一个状态的相变存储器。 解决方案:目标存储单元106a至106d中的相变材料由写入电路102复位。通过复位操作,目标存储单元的相变材料被加热超过熔点,并且通过快速冷却它们, 获得了非洲裔状态。 该非晶态是各自的存储单元106a〜106d的三种以上的状态之一,提供最高的电阻状态。 通过写入电路102,从三个或更多个状态中选择的一个状态被编程到目标存储器单元。 写入电路102向目标存储单元提供信号以使部分相变材料晶体化,从而降低目标存储单元的电阻值。 版权所有(C)2011,JPO&INPIT