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    • 42. 发明授权
    • Semiconductor device
    • 半导体器件
    • US07348617B2
    • 2008-03-25
    • US11288204
    • 2005-11-29
    • Yoshinori KumuraTohru OzakiSusumu ShutoYoshiro ShimojoIwao Kunishima
    • Yoshinori KumuraTohru OzakiSusumu ShutoYoshiro ShimojoIwao Kunishima
    • H01L29/94
    • H01L27/11502H01L27/11507H01L28/57H01L28/65
    • A semiconductor device comprising a ferroelectric capacitor having improved reliability is disclosed. According to one aspect of the present invention, it is provided a semiconductor device comprising a transistor formed on a semiconductor substrate, a ferroelectric capacitor formed above the transistor and comprising a lower electrode, a ferroelectric film and an upper electrode, a first hydrogen barrier film formed over the ferroelectric capacitor, an insulator formed over the first hydrogen barrier film, a contact plug disposed in the insulator and electrically connected with the upper electrode, a second hydrogen barrier film disposed between the contact plug and the insulator continuously, and a wiring connected with the contact plug.
    • 公开了一种包括具有改善的可靠性的铁电电容器的半导体器件。 根据本发明的一个方面,提供了一种半导体器件,包括形成在半导体衬底上的晶体管,形成在晶体管上方的铁电电容器,包括下电极,铁电体膜和上电极,第一氢阻挡膜 形成在所述铁电电容器上,形成在所述第一氢阻挡膜上的绝缘体,设置在所述绝缘体中并与所述上电极电连接的接触插塞,连续地配置在所述接触插塞和所述绝缘体之间的第二氢阻挡膜, 与接触插头。
    • 43. 发明申请
    • Ferroelectric semiconductor memory device
    • 铁电半导体存储器件
    • US20080055962A1
    • 2008-03-06
    • US11896044
    • 2007-08-29
    • Susumu Shuto
    • Susumu Shuto
    • G11C11/22
    • G11C11/22
    • A memory cell includes a ferroelectric capacitor for holding a charge and a transistor connected in parallel with the ferroelectric capacitor. A plurality of the ferroelectric memory cells are connected in series to form a memory cell block. A selection transistor connects,to one end of the block. A bit line connects to the selection transistor. A plate line connects to the other end of the block. A control circuit changes potentials of the word line and the bit line. With the potential of the plate line being held constant, the potential of the word line is changed, thereby erasing information or writing information to the ferroelectric memory cells.
    • 存储单元包括用于保持电荷的铁电电容器和与铁电电容器并联连接的晶体管。 多个铁电存储单元串联连接以形成存储单元块。 选择晶体管连接到块的一端。 位线连接到选择晶体管。 板线连接到块的另一端。 控制电路改变字线和位线的电位。 在板线的电位保持恒定的情况下,字线的电位改变,从而擦除信息或将信息写入铁电存储单元。
    • 46. 发明申请
    • Ferroelectric memory device
    • 铁电存储器件
    • US20070211512A1
    • 2007-09-13
    • US11511212
    • 2006-08-29
    • Susumu Shuto
    • Susumu Shuto
    • G11C11/22G11C7/04
    • G11C11/22G11C7/04G11C7/22
    • A ferroelectric memory device includes a memory cell, read circuit, temperature sensing circuit, and read controller. The memory cell includes a ferroelectric capacitor. The read circuit is configured to read data from the memory cell. The temperature sensing circuit is configured to sense the ambient temperature of the memory cell. The read controller is configured to receive a temperature sensing signal from the temperature sensing circuit, and inhibit a data read operation by the read circuit when the temperature sensed by the temperature sensing circuit is higher than a preset temperature.
    • 铁电存储器件包括存储单元,读电路,温度检测电路和读控制器。 存储单元包括铁电电容器。 读取电路被配置为从存储器单元读取数据。 温度感测电路被配置为感测存储器单元的环境温度。 读取控制器被配置为从温度感测电路接收温度感测信号,并且当温度感测电路感测的温度高于预设温度时,禁止读取电路的数据读取操作。
    • 48. 发明申请
    • Nonvolatile semiconductor memory device which reads by decreasing effective threshold voltage of selector gate transistor
    • 通过降低选择栅极晶体管的有效阈值电压来读取的非易失性半导体存储器件
    • US20070014182A1
    • 2007-01-18
    • US11242895
    • 2005-10-05
    • Susumu Shuto
    • Susumu Shuto
    • G11C8/00G11C11/34
    • G11C8/08G11C16/0433G11C16/08G11C16/26
    • A semiconductor device includes memory cells and a driver. Each memory cell has a cell transistor which has one end of a current path connected to a bit line and stores data by storing charges in a floating gate, and a selector gate transistor which has one end of a current path connected to the other end of the current path of the cell transistor and the other end of the current path connected to a source line. The driver is configured to selectively drive the memory cells, and in read, apply, to a source line connected to a memory cell subjected to read, a potential of a sign opposite to that of a potential applied to the gate of the selector gate transistor in the memory cell to read.
    • 半导体器件包括存储器单元和驱动器。 每个存储单元具有一个单元晶体管,该单元晶体管具有连接到位线的电流通路的一端,并通过在浮动栅极中存储电荷来存储数据;以及选择栅极晶体管,其选择栅极晶体管的电流通路的一端连接到 单元晶体管的电流路径和电流路径的另一端连接到源极线。 驱动器被配置为选择性地驱动存储器单元,并且在读取中应用于连接到被读取的存储器单元的源极线,与施加到选择栅极晶体管的栅极的电位相反的符号的电位 在内存单元中读取。
    • 50. 发明申请
    • Semiconductor storage device, operation method of the same and test method of the same
    • 半导体存储器件的操作方法和测试方法相同
    • US20060114709A1
    • 2006-06-01
    • US11236560
    • 2005-09-28
    • Yuki YamadaSusumu Shuto
    • Yuki YamadaSusumu Shuto
    • G11C11/22
    • G11C11/22
    • A semiconductor storage device comprises a bit line; a word line; a plate line; a ferroelectric capacitor having a ferroelectric substance between electrodes, one of the electrodes being connected to the plate line, the ferroelectric capacitor being capable of storing data; a selection transistor connected between the other of the electrodes of the ferroelectric capacitor and the bit line, the selection transistor being capable of selectively connecting the ferroelectric capacitor to the bit line on the basis of a potential on the word line; a bit line driver corresponding to the bit line to drive the bit line; a word line driver corresponding to the word line to drive the word line; and a plate line driver corresponding to the plate line, the plate line driver including a plurality of plate voltage lines so as to be able to apply a plurality of different voltage values to the plate line, the plate line driver connecting a common single plate voltage line included in the plate voltage lines to the plate line when a data is written or rewritten into the ferroelectric capacitor.
    • 半导体存储装置包括位线; 字线 板线 在电极之间具有铁电体的铁电电容器,其中一个电极与板线连接,强电介质电容器能够存储数据; 连接在所述铁电电容器的另一个电极和所述位线之间的选择晶体管,所述选择晶体管能够基于所述字线上的电位选择性地将所述铁电电容器连接到所述位线; 对应于位线驱动位线的位线驱动器; 与字线对应的字线驱动器驱动字线; 以及对应于所述板线的板线驱动器,所述板线驱动器包括多个板电压线,以便能够对所述板线施加多个不同的电压值,所述板线驱动器将公共单板电压 当数据被写入或重写到铁电电容器中时,包括在板电压线中的线。