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    • 26. 发明授权
    • Semiconductor memory devices having hierarchical bit-line structures
    • 具有分层位线结构的半导体存储器件
    • US08120979B2
    • 2012-02-21
    • US12591254
    • 2009-11-13
    • Jin-Young KimKi-Whan Song
    • Jin-Young KimKi-Whan Song
    • G11C7/00
    • G11C11/4091G11C11/4097G11C2207/002
    • The semiconductor memory device includes a memory cell array and a switching circuit. The memory cell array includes a plurality of first memory cells connected between word lines and first local bit lines, and a plurality of second memory cells connected between the word lines and second local bit lines. The switching circuit is configured to respectively connect the first local bit lines to first global bit lines during a first sensing period, and to respectively connect the second local bit lines to second global bit lines during a second sensing period of a reading operation. The semiconductor memory device further includes a sensing circuit configured to sense and amplify data from the first global bit lines during the first sensing period, and to sense and amplify data from the second global bit lines during the second sensing period of the reading operation.
    • 半导体存储器件包括存储单元阵列和开关电路。 存储单元阵列包括连接在字线和第一局部位线之间的多个第一存储单元,以及连接在字线和第二局部位线之间的多个第二存储单元。 开关电路被配置为在第一感测周期期间将第一本地位线分别连接到第一全局位线,并且在读取操作的第二感测周期期间将第二局部位线分别连接到第二全局位线。 半导体存储器件还包括感测电路,其被配置为在第一感测周期期间感测和放大来自第一全局位线的数据,并且在读取操作的第二感测周期期间感测和放大来自第二全局位线的数据。
    • 29. 发明申请
    • Semiconductor memory device and method for operating the same
    • 半导体存储器件及其操作方法
    • US20100149886A1
    • 2010-06-17
    • US12654283
    • 2009-12-16
    • Ki-Whan SongNam-Kyun Tak
    • Ki-Whan SongNam-Kyun Tak
    • G11C7/00
    • G11C11/404G11C11/4076G11C2211/4016
    • In example embodiments, the semiconductor memory device, and the method for operating the semiconductor memory device, includes a memory cell array having a plurality of memory cells each formed of a transistor having a floating body. The transistors are coupled between a plurality of word lines, a plurality of source lines and a plurality of bit lines. Additionally, the memory cell array includes a controller configured to read data from at least one of the memory cells and restore data to the memory cell storing a first data state through a bit operation of the memory cell. The controller restores data to the memory cell by applying a first source-line control voltage to a selected source line and applying a first word-line control voltage to a selected word line in a first period of a read operation. Also, the controller is configured to restore data to the memory cell, which is storing a second data state, by applying a second source-line control voltage to the selected source line and applying a second word-line control voltage to the selected word line in a second period of the read operation.
    • 在示例实施例中,半导体存储器件以及用于操作半导体存储器件的方法包括具有多个存储单元的存储单元阵列,每个存储单元均由具有浮体的晶体管形成。 晶体管耦合在多个字线,多条源极线和多个位线之间。 此外,存储单元阵列包括控制器,其被配置为从存储器单元中的至少一个读取数据,并且通过存储器单元的位操作将数据恢复到存储第一数据状态的存储单元。 控制器通过对所选择的源极线施加第一源极线控制电压并且在读取操作的第一周期中对所选择的字线施加第一字线控制电压来将数据恢复到存储器单元。 此外,控制器被配置为通过对所选择的源极线施加第二源极线控制电压并将第二字线控制电压施加到所选择的字线来将数据恢复到存储第二数据状态的存储器单元 在读操作的第二周期。