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    • 5. 发明授权
    • Logic-based multiple time programming memory cell
    • 基于逻辑的多时间编程存储单元
    • US08625350B2
    • 2014-01-07
    • US13485920
    • 2012-06-01
    • Wen-Hao ChingShih-Chen WangChing-Sung Yang
    • Wen-Hao ChingShih-Chen WangChing-Sung Yang
    • G11C11/34
    • G11C16/0441G11C2216/10H01L27/11519H01L27/11524H01L29/66825H01L29/7881
    • A non-volatile memory system includes one or more non-volatile memory cells. Each non-volatile memory cell provides a floating gate, a coupling device, a first floating gate transistor, and a second floating gate transistor. The coupling device is located in a first conductivity region. The first floating gate transistor is located in a second conductivity region, and supplies read current sensed during a read operation. The second floating gate transistor is located in a third conductivity region. Such non-volatile memory cell further provides two transistors for injecting negative charge into the floating gate during a programming operation, and removing negative charge from the second floating gate transistor during an erase operation. The floating gate is shared by the first floating gate transistor, the coupling device, and the second floating gate transistor, and extends over active regions of the first floating gate transistor, the coupling device and the second floating gate transistor.
    • 非易失性存储器系统包括一个或多个非易失性存储器单元。 每个非易失性存储单元提供浮动栅极,耦合器件,第一浮栅晶体管和第二浮栅晶体管。 耦合装置位于第一导电区域中。 第一浮栅晶体管位于第二导电区域中,并提供在读操作期间感测到的读电流。 第二浮栅晶体管位于第三导电区域中。 这种非易失性存储单元进一步提供两个晶体管,用于在编程操作期间将负电荷注入浮置栅极,以及在擦除操作期间从第二浮栅晶体管去除负电荷。 浮置栅极由第一浮栅晶体管,耦合器件和第二浮栅晶体管共享,并且延伸在第一浮栅晶体管,耦合器件和第二浮栅晶体管的有源区上。
    • 8. 发明授权
    • Non-volatile memory unit cell with improved sensing margin and reliability
    • 非易失性存储单元,具有改进的感测裕度和可靠性
    • US08456916B2
    • 2013-06-04
    • US13541755
    • 2012-07-04
    • Hsin-Ming ChenShih-Chen WangWen-Hao ChingYen-Hsin LaiHau-Yan LuChing-Sung Yang
    • Hsin-Ming ChenShih-Chen WangWen-Hao ChingYen-Hsin LaiHau-Yan LuChing-Sung Yang
    • G11C11/34
    • H01L27/088G11C16/0458G11C16/28G11C16/3418
    • An only-one-polysilicon layer non-volatile memory unit cell includes a first P-type transistor, a second P-type transistor, a N-type transistor pair, a first and second coupling capacitors is provided. The N-type transistor pair has a third transistor and a fourth transistor that are connected. The third transistor and the fourth transistor have a first floating polysilicon gate and a second floating polysilicon gate to serve as charge storage mediums, respectively. One end of the second coupling capacitor is connected to the gate of the second transistor and is coupled to the second floating polysilicon gate, the other end of the second coupling capacitor receives a second control voltage. One end of the second coupling capacitor is connected to the gate of the second transistor and is coupled to the second floating polysilicon gate, the other end of the second coupling capacitor receives a second control voltage.
    • 唯一一多晶硅层非易失性存储单元包括第一P型晶体管,第二P型晶体管,N型晶体管对,第一和第二耦合电容器。 N型晶体管对具有连接的第三晶体管和第四晶体管。 第三晶体管和第四晶体管分别具有第一浮置多晶硅栅极和第二浮置多晶硅栅极,用作电荷存储介质。 第二耦合电容器的一端连接到第二晶体管的栅极并且耦合到第二浮置多晶硅栅极,第二耦合电容器的另一端接收第二控制电压。 第二耦合电容器的一端连接到第二晶体管的栅极并且耦合到第二浮置多晶硅栅极,第二耦合电容器的另一端接收第二控制电压。
    • 9. 发明申请
    • Logic-Based Multiple Time Programming Memory Cell
    • 基于逻辑的多时间编程存储单元
    • US20110310669A1
    • 2011-12-22
    • US12818095
    • 2010-06-17
    • Wen-Hao ChingShih-Chen WangChing-Sung Yang
    • Wen-Hao ChingShih-Chen WangChing-Sung Yang
    • G11C16/04
    • G11C16/0441G11C2216/10H01L27/11519H01L27/11524H01L29/66825H01L29/7881
    • A non-volatile memory system includes one or more non-volatile memory cells. Each non-volatile memory cell comprises a floating gate, a coupling device, a first floating gate transistor, and a second floating gate transistor. The coupling device is located in a first conductivity region. The first floating gate transistor is located in a second conductivity region, and supplies read current sensed during a read operation. The second floating gate transistor is located in a third conductivity region. Such non-volatile memory cell further comprises two transistors for injecting negative charge into the floating gate during a programming operation, and removing negative charge from the second floating gate transistor during an erase operation. The floating gate is shared by the first floating gate transistor, the coupling device, and the second floating gate transistor, and extends over active regions of the first floating gate transistor, the coupling device and the second floating gate transistor.
    • 非易失性存储器系统包括一个或多个非易失性存储器单元。 每个非易失性存储单元包括浮动栅极,耦合器件,第一浮栅晶体管和第二浮栅晶体管。 耦合装置位于第一导电区域中。 第一浮栅晶体管位于第二导电区域中,并提供在读操作期间感测到的读电流。 第二浮栅晶体管位于第三导电区域中。 这种非易失性存储单元还包括两个晶体管,用于在编程操作期间将负电荷注入浮置栅极,以及在擦除操作期间从第二浮栅晶体管去除负电荷。 浮置栅极由第一浮栅晶体管,耦合器件和第二浮栅晶体管共享,并且延伸在第一浮栅晶体管,耦合器件和第二浮栅晶体管的有源区上。