High density dynamic RAM cell
    1.
    发明授权
    High density dynamic RAM cell 失效
    高密度动态RAM单元

    公开(公告)号:US5057887A

    公开(公告)日:1991-10-15

    申请号:US366801

    申请日:1989-06-14

    CPC分类号: H01L27/10829 Y10S257/90

    摘要: The described embodiments of the present invention provide a memory cell and method for fabricating that memory cell and memory array including the cell. The memory cell is a trench capacitor type having a transistor (1-1-2) formed on the surface of a major face of a substrate (16) and having a capacitor (2-1-2) formed in the substrate around the periphery of a trench. The capacitor and transistor are connected by a buried, heavily doped region (26) having the opposite conductivity type from the substrate. A doped storage area (24) having the same doping type as the buried doped region surrounds the trench. A field plate (30) is formed in the trench separated from the storage region by a dielectric layer (32). The field plate extends onto the isolation areas between memory cells thus providing isolation between cells using a minimum of surface area. A self-aligned process is used to form the source (14) and drain (12) for the pass gate transistor and automatic connection between the source of the transistor and the buried doping layer is made by the buried N+ layer. A sidewall silicon nitride passivation filament (38) is formed to protect the sidewalls of the interlevel insulator region between the first (30) and second (3-3, 3-4) polycrystalline silicon layers.

    High density dynamic RAM cell
    2.
    发明授权
    High density dynamic RAM cell 失效
    高密度动态RAM单元

    公开(公告)号:US5364812A

    公开(公告)日:1994-11-15

    申请号:US86524

    申请日:1993-07-01

    CPC分类号: H01L27/10829 Y10S257/90

    摘要: The described embodiments of the present invention provide a memory cell and method for fabricating that memory cell and memory array including the cell. The memory cell is a trench capacitor type having a transistor (1-1-2) formed on the surface of a major face of a substrate (16) and having a capacitor (2-1-2) formed in the substrate around the periphery of a trench. The capacitor and transistor are connected by a buried, heavily doped region (26) having the opposite conductivity type from the substrate. A doped storage area (24) having the same doping type as the buried doped region surrounds the trench. A field plate (30) is formed in the trench separated from the storage region by a dielectric layer (32). The field plate extends onto the isolation areas between memory cells thus providing isolation between cells using a minimum of surface area. A self-aligned process is used to form the source (14) and drain (12) for the pass gate transistor and automatic connection between the source of the transistor and the buried doping layer is made by the buried N+ layer. A sidewall silicon nitride passivation filament (38) is formed to protect the sidewalls of the interlevel insulator region between the first (30) and second (3-3, 3-4) polycrystalline silicon layers.

    摘要翻译: 本发明的所描述的实施例提供了一种用于制造包括该单元的存储单元和存储器阵列的存储单元和方法。 存储单元是具有形成在基板(16)的主面的表面上的晶体管(1-1-2)的沟槽电容器型,并且在周围形成有基板的电容器(2-1-2) 的沟渠 电容器和晶体管通过与衬底具有相反导电类型的掩埋的重掺杂区域(26)连接。 具有与掩埋掺杂区相同的掺杂类型的掺杂存储区(24)围绕沟槽。 通过电介质层(32),在与沟槽区分开的沟槽中形成场板(30)。 场板延伸到存储单元之间的隔离区域,从而使用最小的表面积来提供电池之间的隔离。 自对准工艺用于形成栅极晶体管的源极(14)和漏极(12),晶体管的源极和掩埋掺杂层之间的自动连接由掩埋的N +层制成。 形成侧壁氮化硅钝化丝(38)以保护第一(30)和第二(3-3,3-4)多晶硅层之间的层间绝缘体区域的侧壁。

    Method and apparatus for detection of physical quantities, servomotor
system utilizing the method and apparatus and power steering apparatus
using the servomotor system
    6.
    发明授权
    Method and apparatus for detection of physical quantities, servomotor system utilizing the method and apparatus and power steering apparatus using the servomotor system 失效
    物理量检测方法和装置,利用该方法和装置的伺服电机系统以及使用伺服电机系统的动力转向装置

    公开(公告)号:US5218279A

    公开(公告)日:1993-06-08

    申请号:US637776

    申请日:1991-01-07

    CPC分类号: G01D5/145

    摘要: In an apparatus of detecting an environmental physical quantity such as magnetism and temperature by utilizing a sensitive element having an internal, electrical physical quantity which changes as the environmental physical quantity changes, an external operator element is provided which acts, when the environmental physical quantity acting on the sensitive element changes, a physical quantity corresponding to the change on the sensitive element, an electrical quantity supplied to generate in the external operator a physical quantity corresponding to the change is detected, and the environmental physical quantity is detected from the electrical quantity to provide a detection signal devoid of hysteresis and "depression".

    摘要翻译: 在通过利用具有随着环境物理量变化而变化的内部电气物理量的敏感元件来检测诸如磁性和温度的环境物理量的装置中,提供外部操作元件,当外部操作元件作用时 在敏感元件变化时,检测对应于敏感元件变化的物理量,在外部操作者中提供的用于产生对应于该变化的物理量的电量被检测,并且从电量检测到环境物理量 提供没有滞后和“抑制”的检测信号。

    Method and apparatus therefor in motor speed control
    8.
    发明授权
    Method and apparatus therefor in motor speed control 失效
    电机速度控制方法及其设备

    公开(公告)号:US4638225A

    公开(公告)日:1987-01-20

    申请号:US824923

    申请日:1986-01-31

    IPC分类号: H02P7/29 H02P23/00 H02P5/06

    摘要: A pulse width control apparatus and method for controlling motor speed wherein the number of pulses relating to more speed feedback data is counted so as to control the speed of the motor in accordance with a speed command data and a pulse width modulation signal based on the counted number of pulses. A free-running hardware timer and a soft-timer on a program controlled by an instruction execution time of a microcomputer are arranged so that ON-time data and OFF-time data of the pulse width modulation signal are selectively set in one and the other of the hardware and soft-timers in dependence on values of the ON and OFF times, respectively. The ON and OFF states of the pulse width modulation signal are changed when the contents of the hardware and soft-timers reach predetermined values so as to control the pulse width thereof.

    摘要翻译: 一种用于控制电动机速度的脉冲宽度控制装置和方法,其中对与更多速度反馈数据相关的脉冲数进行计数,以便根据速度指令数据和基于计数的脉宽调制信号来控制电动机的速度 脉冲数。 在由微计算机的指令执行时间控制的程序上的自由运行的硬件定时器和软件定时器被布置成使得脉冲宽度调制信号的接通时间数据和关断时间数据被选择性地设置在一个 的硬件和软定时器分别依赖于ON和OFF时间的值。 当硬件和软定时器的内容达到预定值以便控制其脉冲宽度时,改变脉宽调制信号的ON和OFF状态。

    Method and apparatus for detecting position and velocity of moving body
    9.
    发明授权
    Method and apparatus for detecting position and velocity of moving body 失效
    用于检测移动体的位置和速度的方法和装置

    公开(公告)号:US4628314A

    公开(公告)日:1986-12-09

    申请号:US668893

    申请日:1984-11-07

    摘要: A method for detecting the position and the velocity by using an encoder mounted directly on a moving body wherein original signals of the encoder are pulse-width modulated by using a sampling carrier wave and the position is detected by measuring the width of the pulses thus obtained. An apparatus for implementing the method comprises a carrier wave generation circuit, a pulse width modulation circuit which pulse-width modulates the original signals coming from the encoder by using the carrier wave, a pulse width timer which measures the width of the pulses thus modulated, and a microcomputer connected to the pulse width timer.

    摘要翻译: 通过使用直接安装在移动体上的编码器来检测位置和速度的方法,其中使用采样载波对编码器的原始信号进行脉冲宽度调制,并且通过测量由此获得的脉冲的宽度来检测位置 。 实现该方法的装置包括:载波产生电路,脉冲宽度调制来自使用载波的编码器的原始信号的脉冲宽度调制电路;测量被调制脉冲宽度的脉冲宽度计时器; 和连接到脉宽定时器的微型计算机。

    Rotary cylinder apparatus
    10.
    发明授权
    Rotary cylinder apparatus 失效
    旋转气缸装置

    公开(公告)号:US4347536A

    公开(公告)日:1982-08-31

    申请号:US109499

    申请日:1980-01-04

    IPC分类号: G11B5/53 G11B15/473 G11B5/52

    CPC分类号: G11B15/473 G11B5/53

    摘要: A rotary cylinder apparatus comprises a rotary drum mounted thereon with a magnetic head, a brushless motor for driving the rotary drum, a stationary drum housing the brushless motor and which is disposed opposing the rotary drum, and a revolution-rate detector for detecting the number of revolutions of the rotary drum. The brushless motor comprises a permanent magnet rotor connected to the rotary drum, a driving coil mounted on the stationary drum, and a position detector for detecting the position of the permanent magnet rotor in order to control current to be supplied to the driving coil. The detecting coil of the revolution-rate detector and the brushless motor are housed in the stationary drum and wiring of the driving coil and revolution-rate detecting coil is performed on a common wiring board. Thus, the driving section of the rotary cylinder apparatus is small-sized and made light in weight, and the number of processes of assembling the rotary cylinder apparatus can be decreased.

    摘要翻译: 旋转滚筒装置包括安装有磁头的旋转滚筒,用于驱动旋转滚筒的无刷马达,容纳无刷马达的固定滚筒,与旋转滚筒相对配置,转速检测器用于检测数字 的旋转鼓的转数。 无刷电动机包括连接到旋转磁鼓的永磁转子,安装在静止磁鼓上的驱动线圈,以及位置检测器,用于检测永磁转子的位置,以控制供给驱动线圈的电流。 转速检测器的检测线圈和无刷电动机被容纳在固定鼓中,驱动线圈和转速检测线圈的布线在公共布线板上进行。 因此,旋转滚筒装置的驱动部分体积小,重量轻,并且能够减少组装旋转滚筒装置的处理次数。