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    • 105. 发明授权
    • Semiconductor memory
    • 半导体存储器
    • US5966341A
    • 1999-10-12
    • US982398
    • 1997-12-02
    • Tsugio TakahashiGoro KitsukawaTakesada AkibaYasushi KawaseMasayuki Nakamura
    • Tsugio TakahashiGoro KitsukawaTakesada AkibaYasushi KawaseMasayuki Nakamura
    • G11C11/401G11C7/10G11C11/407G11C11/408G11C11/409G11C11/4096G11C11/4097H01L21/8242H01L27/105H01L27/108G11C13/00
    • H01L27/10805G11C11/408G11C11/4096G11C11/4097G11C7/10H01L27/105
    • A semiconductor memory such as a dynamic RAM having memory mats each divided into a plurality of units or sub-memory mats. Each sub-memory mat comprises: a memory array having sub-word lines and sub-bit lines intersecting orthogonally and dynamic memory cells located in lattice fashion at the intersection points between the intersecting sub-word and sub-bit lines; a sub-word line driver including unit sub-word line driving circuits corresponding to the sub-word lines; a sense amplifier including unit amplifier circuits and column selection switches corresponding to the sub-bit lines; and sub-common I/O lines to which designated sub-bit lines are connected selectively via the column selection switches. The sub-memory mats are arranged in lattice fashion. Above the sub-memory mats is a layer of: main word lines and column selection signal lines intersecting orthogonally, the main word lines having a pitch that is an integer multiple of the pitch of the sub-word lines, the column selection signal lines having a pitch that is an integer multiple of the pitch of the sub-bit lines; and main common I/O lines to which designated sub-common I/O lines are connected selectively.
    • 具有各自被划分为多个单元或子存储器垫的存储器垫的动态RAM等半导体存储器。 每个子存储器垫包括:存储器阵列,其具有在相交的子字和子位线之间的交叉点处以网格方式位于正交和动态存储器单元的子字线和子位线; 子字线驱动器,包括对应于子字线的单元子字线驱动电路; 感测放大器,包括对应于子位线的单位放大器电路和列选择开关; 以及经由列选择开关选择性地连接指定子位线的子公共I / O线。 子存储垫以格子排列。 在子存储器衬垫之上是与主要字线和列选择信号线正交相交的层,主字线具有作为子字线的间距的整数倍的间距,列选择信号线具有 间距,是子位线的间距的整数倍; 以及选择性地连接指定的子公共I / O线的主要公共I / O线。
    • 109. 发明授权
    • Electric actuator
    • 电动执行器
    • US5796187A
    • 1998-08-18
    • US855448
    • 1997-05-13
    • Shigekazu NagaiShuuzou SakuraiMasayuki Nakamura
    • Shigekazu NagaiShuuzou SakuraiMasayuki Nakamura
    • H02K7/06B23Q5/40B23Q11/08F16H25/20
    • B23Q5/40B23Q11/08F16H25/20F16H2025/2075
    • Disclosed is an electric actuator which makes it possible to prevent a driving force-transmitting shaft from adhesion of dust or the like, and eliminate any fear for deterioration of driving force-transmitting function. A hole is defined in a body which is arranged to extend in a vertical direction. A motor is secured to one end of the body. A feed screw is coaxially connected to a rotary shaft of the motor. The feed screw is rotatably supported by angular contact ball bearings. A feed nut is engaged with the feed screw. The hole is slidably engaged with a cylinder member which is formed to be cylindrical and lengthy. The cylinder member surrounds the feed screw. The feed nut is secured to one end of the cylinder member, and a bracket is secured to the other end thereof.
    • 公开了一种电致动器,其能够防止驱动力传递轴粘附灰尘等,并且消除对驱动力传递功能的劣化的任何恐惧。 在主体中限定了一个孔,该主体被布置为在垂直方向上延伸。 马达固定在身体的一端。 进给螺杆与电机的旋转轴同轴连接。 进给螺杆由角接触球轴承可转动地支承。 进给螺母与进给螺杆啮合。 该孔与形成为圆柱形和冗长的圆筒构件可滑动地接合。 气缸构件围绕进给螺杆。 进给螺母固定在缸体的一端,支架固定在其另一端。