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    • 7. 发明公开
    • 멀티비트 제어 기능을 갖는 불휘발성 강유전체 메모리 장치
    • 具有多位控制功能的非易失性存储器件,特别选择多个单元格,并从存储单元读取/写入多个位
    • KR1020040100515A
    • 2004-12-02
    • KR1020030032902
    • 2003-05-23
    • 에스케이하이닉스 주식회사
    • 강희복
    • G11C11/22
    • G11C11/22G11C11/5657
    • PURPOSE: A nonvolatile ferroelectric memory device having a multi bit control function is provided to obtain stable data sensing value with low distribution using average characteristics of a plurality of cells selected simultaneously and to improve operation speed of the nonvolatile ferroelectric memory. CONSTITUTION: The nonvolatile ferroelectric memory device has a 2T2C(2-Transistor,2-Capacitor) structure by comprising two transistors(T3,T4) and two ferroelectric capacitors(FC3,FC4). The transistor(T3) is connected between a bit line(BL1) and the first electrode of the ferroelectric capacitor(FC3) and its gate is connected to a word line(WL). The second electrode of the ferroelectric capacitor(FC3) is connected to a plate line(PL). The transistor(T4) is connected between a bit line(BL2) and the first electrode of the ferroelectric capacitor(FC4) and its gate is connected to the word line. The second electrode of the ferroelectric capacitor(FC4) is connected to the plate line. The bit line(BL1) is connected to a column selection switch(CS1), and the bit line(BL2) is connected to a column selection switch(CS2). A sense AMP compares the voltage level of averaged data supplied from the common data bus with reference voltage, and it amplifies it.
    • 目的:提供具有多位控制功能的非易失性铁电存储器件,以使用同时选择的多个单元的平均特性来获得具有低分布的稳定的数据感测值,并提高非易失性铁电存储器的操作速度。 构成:非易失性铁电存储器件具有通过包括两个晶体管(T3,T4)和两个铁电电容器(FC3,FC4)的2T2C(2晶体管,2-电容器)结构。 晶体管(T3)连接在位线(BL1)和铁电体电容器(FC3)的第一电极之间,栅极连接到字线(WL)。 铁电电容器(FC3)的第二电极连接到板线(PL)。 晶体管(T4)连接在位线(BL2)和铁电电容器(FC4)的第一电极之间,其栅极连接到字线。 铁电电容器(FC4)的第二电极与板线连接。 位线(BL1)连接到列选择开关(CS1),位线(BL2)连接到列选择开关(CS2)。 感测放大器将公共数据总线提供的平均数据的电压电平与参考电压进行比较,并将其放大。
    • 8. 发明公开
    • 불휘발성 강유전체 메모리 장치 및 그 구동방법
    • 非挥发性电磁存储器件及其驱动方法
    • KR1020030041205A
    • 2003-05-27
    • KR1020010071841
    • 2001-11-19
    • 에스케이하이닉스 주식회사
    • 강희복계훈우이근일박제훈김정환
    • G11C11/22
    • G11C11/22G11C11/5657
    • PURPOSE: A non-volatile ferroelectric memory device and driving method thereof is provided to reduce a chip cost and a chip size by making a memory cell perform a role of plural memory cells. CONSTITUTION: The first cell array block(20) and the second cell array block(30) are divided into upper and lower parts. A sense amplifier block(40) is placed between the first and second cell array blocks every multiple bit line. A data input/output encoder(50) is connected to a data bus at both ends of each multiple bit line and encodes an output of the sense amplifier block to output multi-bit signals. The first reference cell array block(60) and the second reference cell array block(70) is disposed between the first and second reference cell array blocks and the data input/output encoder.
    • 目的:提供一种非挥发性铁电存储器件及其驱动方法,通过使存储单元执行多个存储单元的作用来降低芯片成本和芯片尺寸。 构成:第一单元阵列块(20)和第二单元阵列块(30)分为上部和下部。 读出放大器块(40)被放置在每个多位线之间的第一和第二单元阵列块之间。 数据输入/输出编码器(50)连接到每个多位线的两端的数据总线,并对读出放大器块的输出进行编码以输出多位信号。 第一参考单元阵列块(60)和第二参考单元阵列块(70)设置在第一和第二参考单元阵列块和数据输入/输出编码器之间。