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    • 4. 发明授权
    • Semiconductor memory devices and signal line arrangements and related methods
    • 半导体存储器件和信号线布置及相关方法
    • US07259978B2
    • 2007-08-21
    • US11221684
    • 2005-09-08
    • Chul-Woo ParkJung-Bae LeeYoung-Sun MinJong-Hyun ChoiJong-Eon Lee
    • Chul-Woo ParkJung-Bae LeeYoung-Sun MinJong-Hyun ChoiJong-Eon Lee
    • G11C5/06
    • G11C5/063G11C7/18G11C8/14
    • A semiconductor memory device may include a memory cell array, a bit line sense amplifier, a sub word line driver, and an electrode. The memory cell array may include a sub memory cell array connected between sub word lines and bit line pairs and having memory cells which are selected in response to a signal transmitted to the sub word lines and column selecting signal lines. The bit line sense amplifier may be configures to sense and amplify data of the bit line pairs. The sub word line driver may be configured to combine signals transmitted from word selecting signal lines and signals transmitted from main word lines to select the sub word lines. Moreover, the memory cell array may be configured to transmit data between the bit line pairs and local data line pairs and to transmit data between the local data line pairs and global data line pairs. The electrode may be configured to cover the whole memory cell array and to apply a voltage needed for the memory cells. The local data line pairs may be arranged on a first layer above the electrode in the same direction as the sub word line. The column selecting signal lines and the global data line pairs may be arranged on a second layer above the electrode in the same direction as the bit line. The word selecting signal lines and the main word lines may be arranged on a third layer above the electrode in the same direction as the sub word line. Related methods of signal line arrangement are also discussed.
    • 半导体存储器件可以包括存储单元阵列,位线读出放大器,子字线驱动器和电极。 存储单元阵列可以包括连接在子字线和位线对之间并具有响应于发送到子字线和列选择信号线的信号而被选择的存储器单元的子存储单元阵列。 位线读出放大器可以被配置为感测和放大位线对的数据。 子字线驱动器可以被配置为组合从字选择信号线发送的信号和从主字线发送的信号,以选择子字线。 此外,存储单元阵列可以被配置为在位线对和本地数据线对之间传输数据,并且在本地数据线对和全局数据线对之间传送数据。 电极可以被配置为覆盖整个存储单元阵列并施加存储单元所需的电压。 局部数据线对可以以与子字线相同的方向布置在电极上方的第一层上。 列选择信号线和全局数据线对可以以与位线相同的方向布置在电极上方的第二层上。 字选择信号线和主字线可以沿与子字线相同的方向布置在电极上方的第三层上。 还讨论了信号线布置的相关方法。
    • 7. 发明授权
    • DRAM and method for partially refreshing memory cell array
    • 用于部分刷新存储单元阵列的DRAM和方法
    • US07349278B2
    • 2008-03-25
    • US11485565
    • 2006-07-12
    • Young-Sun MinJong-Hyun ChoiNam-Jong Kim
    • Young-Sun MinJong-Hyun ChoiNam-Jong Kim
    • G11C29/00
    • G11C11/406G11C11/40622
    • A method of a partial array self-refresh (PASR) operation for a dynamic random-access memory (DRAM) device includes initiating a PASR mode; writing data into a first single cell of a twin cell and inverted data of the data into a second single cell of the twin cell, during a first refresh period of the PASR mode; and concurrently refreshing the first and second single cells that are included in the twin cell, during subsequent refresh periods of the PASR mode following the first refresh period. Embodiments according to the invention can extend the period of refresh operations by applying a PASR technique for a twin cell to a single cell and thereby reduce the power consumption of the refresh operations.
    • 用于动态随机存取存储器(DRAM)设备的部分阵列自刷新(PASR)操作的方法包括启动PASR模式; 在PASR模式的第一刷新周期期间将数据写入双胞胎单元的第一单个单元并将数据反转为双胞胎单元的第二单元; 并且在第一刷新周期之后的PASR模式的后续刷新周期期间同时刷新包含在双胞胎单元中的第一和第二单个单元。 根据本发明的实施例可以通过将双胞胎的PASR技术应用于单个小区来延长刷新操作的周期,从而降低刷新操作的功耗。
    • 10. 发明申请
    • Circuit and method of boosting voltage for a semiconductor memory device
    • 用于半导体存储器件的升压电压的电路和方法
    • US20070133320A1
    • 2007-06-14
    • US11634599
    • 2006-12-06
    • Young-Sun MinJong-Hyun Choi
    • Young-Sun MinJong-Hyun Choi
    • G11C7/00
    • G11C5/145
    • A voltage boosting circuit of a semiconductor memory device for decreasing power consumption can include a first precharge circuit, a second precharge circuit, a first capacitive element, a second capacitive element and a coupling circuit. The first precharge circuit precharges a first node using a first supply voltage and the second precharge circuit precharges a second node using a second supply voltage. The first capacitive element boosts a voltage level of the first node in response to a first pulse signal and the second capacitive element boosts a voltage level of the second node in response to a second pulse signal. The coupling circuit electrically couples the first node to the second node in response to a boosting enable signal and a self-refresh control signal.
    • 用于降低功耗的半导体存储器件的升压电路可以包括第一预充电电路,第二预充电电路,第一电容元件,第二电容元件和耦合电路。 第一预充电电路使用第一电源电压对第一节点进行预充电,并且第二预充电电路使用第二电源电压预充电第二节点。 第一电容元件响应于第一脉冲信号而升高第一节点的电压电平,并且第二电容元件响应于第二脉冲信号而升高第二节点的电压电平。 响应于升压使能信号和自刷新控制信号,耦合电路将第一节点电耦合到第二节点。