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    • 7. 发明授权
    • Chain RAM and method for fabricating the same
    • 链式RAM及其制造方法
    • US06433377B1
    • 2002-08-13
    • US09947611
    • 2001-09-07
    • Morifumi Ohno
    • Morifumi Ohno
    • H01L2976
    • H01L27/11502G11C11/22
    • A chain ferroelectric RAM includes a memory cell array having a plurality of memory cell, which connected in series between bit line and a plate line. Each memory cell includes a first ferroelectric capacitor having upper and lower electrodes between which a ferroelectric layer is provided; a second ferroelectric capacitor having upper and lower electrodes between which a ferroelectric layer is provided; and a transistor connected to the upper and lower electrodes of the first and second ferroelectric capacitors. The upper electrode of the first ferroelectric capacitor is connected to the lower electrode of the second ferroelectric capacitor, and the lower electrode of the first ferroelectric capacitor is connected to the upper electrode of the second ferroelectric capacitor in a complimentary manner.
    • 链式铁电RAM包括具有多个存储单元的存储单元阵列,其串联连接在位线与板线之间。 每个存储单元包括具有上电极和下电极的第一铁电电容器,其间设有铁电层; 具有上下电极的第二铁电电容器,其间设置铁电层; 以及连接到第一和第二铁电电容器的上电极和下电极的晶体管。 第一强电介质电容器的上部电极与第二强电介质电容器的下部电极连接,第一强电介质电容器的下部电极以互补的方式与第二强电介质电容器的上部电极连接。