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    • 5. 发明授权
    • Capacitorless dynamic memory device capable of performing data read/restoration and method for operating the same
    • 能够执行数据读取/恢复的电容式动态存储器件及其操作方法
    • US08054693B2
    • 2011-11-08
    • US12654283
    • 2009-12-16
    • Ki-Whan SongNam-Kyun Tak
    • Ki-Whan SongNam-Kyun Tak
    • G11C16/04
    • 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。