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    • 1. 发明授权
    • Biasing circuit for UPROM cells with low voltage supply
    • 低压电源的UPROM单元的偏置电路
    • US5859797A
    • 1999-01-12
    • US846753
    • 1997-04-30
    • Marco MaccarroneJacopo MulattiCarla Maria Golla
    • Marco MaccarroneJacopo MulattiCarla Maria Golla
    • G11C16/30G11C7/00
    • G11C16/30
    • A circuit for generating biasing signals in reading of a redundant UPROM cell incorporating at least one memory element of the EPROM or flash type and having a control terminal and a conduction terminal to be biased, as well as MOS transistors connecting the memory element with a reference low supply voltage comprises a voltage booster for generating a first voltage output signal to be applied to the control terminal of the memory element and a limitation network for the voltage signal connected to the output of the voltage booster. There is also provided a circuit portion for generating a second voltage output signal to be applied to the control terminal of one of the above mentioned transistors. This circuit portion comprises a timing section interlocked with the voltage booster of a section generating the second voltage signal.
    • 一种用于在读入包括EPROM或闪存类型的至少一个存储元件并具有要偏置的控制端子和导电端子的冗余UPROM单元的电路中产生偏置信号的电路,以及连接存储元件与参考电压的MOS晶体管 低电源电压包括用于产生要施加到存储元件的控制端的第一电压输出信号的电压升压器和连接到升压器的输出的电压信号的限制网络。 还提供了用于产生要施加到上述晶体管之一的控制端子的第二电压输出信号的电路部分。 该电路部分包括与产生第二电压信号的部分的升压器互锁的定时部分。
    • 3. 发明授权
    • Method for programming redundancy registers in a row redundancy
integrated circuitry for a semiconductor memory device, and row
redundancy integrated circuitry
    • 用于半导体存储器件的行冗余集成电路中的冗余寄存器的编程方法以及行冗余集成电路
    • US5659509A
    • 1997-08-19
    • US391999
    • 1995-02-16
    • Carla Maria GollaMarco MacCarrone
    • Carla Maria GollaMarco MacCarrone
    • G11C29/00G11C29/04
    • G11C29/789
    • A method for programming non-volatile row redundancy memory registers. Each register is associated with a respective pair of redundancy row and each one programmable to store in two subsets of a set of memory cells a pair of addresses of a respective pair of adjacent defective rows. Each memory register is supplied with row address signals and with a respective selection signal belonging to a set of column address signals. The method provides for: applying to the row address lines the address of a first defective row of the pair of adjacent defective rows; activating one of the selection signals for selecting the register which is to be programmed; applying to a further column address line a first logic level to select for programming in the selected memory register, a first subset of memory cells; enabling the programming of the address of the first defective row of the pair of adjacent defective rows into the first subset of memory cells; applying to at least a subset of the row address lines the address of the second defective row of the pair; applying to the further column line a second, opposite logic level to select for programming, in the selected memory register, at least a group of memory cells of the second subset of the two subsets of memory cells; and enabling the programming of the address of the second defective row of the pair of adjacent defective rows into the second subset of memory cells.
    • 一种用于编程非易失性行冗余存储器寄存器的方法。 每个寄存器与相应的一对冗余行相关联,并且每个寄存器可编程以在一组存储器单元的两个子集中存储相应的一对相邻有缺陷行的一对地址。 每个存储器寄存器被提供有行地址信号和属于一组列地址信号的相应选择信号。 该方法提供:向行地址线应用该对相邻的有缺陷行的第一缺陷行的地址; 激活用于选择要编程的寄存器的选择信号之一; 向另一列地址线施加第一逻辑电平以选择用于在选择的存储器寄存器中编程存储器单元的第一子集; 使得能够将一对相邻的有缺陷行的第一缺陷行的地址编程到存储器单元的第一子集中; 向所述行地址线的至少一个子集施加所述对的所述第二缺陷行的地址; 在所选择的存储器寄存器中向所述另外的列线施加第二相反逻辑电平以选择用于在所述存储器单元的所述两个子集中的所述第二子集的至少一组存储器单元中进行编程; 并且使得能够将该对相邻的有缺陷行的第二有缺陷行的地址编程到存储器单元的第二子集中。
    • 5. 发明授权
    • Switching circuit
    • 开关电路
    • US6064598A
    • 2000-05-16
    • US275694
    • 1999-03-24
    • Andrea GhilardelliCarla Maria GollaMatteo ZammattioStefano Zanardi
    • Andrea GhilardelliCarla Maria GollaMatteo ZammattioStefano Zanardi
    • G11C16/12G11C16/04
    • G11C16/12
    • A switching circuit comprising a supply voltage, a reference voltage, a line suitable to carry a negative voltage, an input for a control signal, suitable to supply to a first output node and to a second output node two voltages respectively equal to supply voltage and to line voltage or, alternatively, to line voltage and to supply voltage, in response to the control signal. There are first interrupting means, second interrupting means, third interrupting means, fourth interrupting means, the first and third interrupting means connected in series between the supply voltage and the line, the second and fourth interrupting means connected in series with each other and in parallel to first and third interrupting means, the first output node corresponding to common node between the first interrupting means and the third interrupting means, the second output node corresponding to common node between the second interrupting means and the fourth interrupting means, the control signal controlling first interrupting means and second interrupting means in such a way that when the first interrupting means are open, also the fourth interrupting means are open whereas the second interrupting means and third interrupting means are closed, connecting the first output node to line and the second output node to supply voltage, and vice versa when the first interrupting means are closed, also fourth interrupting means are closed whereas the second interrupting means and third interrupting means are open, connecting the first output node to supply voltage and the second output node to line.
    • 一种开关电路,包括电源电压,参考电压,适于承载负电压的线路,用于控制信号的输入端,适于向第一输出节点和第二输出节点提供分别等于电源电压的两个电压和 或者作为线路电压,并且响应于控制信号而提供电压。 第一中断装置,第二中断装置,第三中断装置,第四中断装置,串联连接在电源电压和线路之间的第一和第三中断装置,第二和第四中断装置彼此串联并联 对于第一和第三中断装置,对应于第一中断装置和第三中断装置之间的公共节点的第一输出节点,对应于第二中断装置和第四中断装置之间的公共节点的第二输出节点,控制信号 中断装置和第二中断装置,使得当第一中断装置打开时,第四中断装置也打开,而第二中断装置和第三中断装置关闭,将第一输出节点连接到线路,第二输出节点 提供电压,反之亦然,当第一次中断时 ns闭合,第四中断装置闭合,而第二中断装置和第三中断装置断开,将第一输出节点连接到电源电压,将第二输出节点连接到线路。
    • 7. 发明授权
    • Address transition detection circuit
    • 地址转换检测电路
    • US5815464A
    • 1998-09-29
    • US811869
    • 1997-03-05
    • Carla Maria GollaMatteo ZammattioStefano Zanardi
    • Carla Maria GollaMatteo ZammattioStefano Zanardi
    • G11C8/18H03K5/1534G11C7/00
    • H03K5/1534G11C8/18
    • An address transition detection circuit having a number of cells supplied with respective address signals and outputs connected in a wired NOR configuration to generate a pulse signal on detecting transitions of their respective address signals. The pulse signal is supplied to a source stage for generating an address transition signal having a first and second switching edge on receiving the pulse signal. The source stage has a monostable stage for generating an end-of-transition signal with a predetermined delay following reception of the pulse signal; and an output stage connected to the cells and to the monostable stage, which generates the first switching edge of the address transition signal on receiving the pulse signal, and the second switching edge on receiving the end-of-transition signal. The monostable stage presents a compensating structure for maintaining the delay in the switching of the end-of-transition signal despite variations in temperature and supply voltage.
    • 一种地址转换检测电路,其具有提供有相应地址信号的单元的数量,并且以线性NOR配置连接的输出,以在检测各自地址信号的转变时产生脉冲信号。 脉冲信号被提供给源级,用于在接收脉冲信号时产生具有第一和第二开关沿的地址转换信号。 源级具有用于在接收到脉冲信号之后以预定延迟产生转换终止信号的单稳态级; 以及连接到单元和单稳态级的输出级,其在接收到脉冲信号时产生地址转换信号的第一开关沿,并且在接收到转换终止信号时产生第二开关沿。 单稳态阶段提供了一种补偿结构,用于尽管温度和电源电压有变化,仍保持转换终止信号的切换延迟。