Method for manufacturing drive shaft
    1.
    发明授权
    Method for manufacturing drive shaft 有权
    驱动轴的制造方法

    公开(公告)号:US09375769B2

    公开(公告)日:2016-06-28

    申请号:US14327349

    申请日:2014-07-09

    申请人: Jong Hoon Jung

    摘要: Disclosed in a method for manufacturing a drive shaft which comprises forming a first shaft unit by shrinking one side of a metallic pipe which has a uniform first strength; decreasing the thickness of an intermediate portion of the metallic pipe by drawing the intermediate portion of the metallic pipe which is integral with the first shaft unit; forming at an inner side surface of the other side of the metallic pipe a strength decrease unit which has a second strength smaller than the first strength, by heat-treating by a predetermined distance the inner side surface of the other side being opposite to one side of the metallic pipe; and forming a second shaft unit without transforming any portion of the intermediate portion by shrinking the metallic pipe which has the strength decrease unit, wherein the second shaft unit is formed by applying compression force to a portion where the strength decrease unit in the metallic pipe is formed, in a predetermine direction being vertical with respect to the axial direction of the metallic pipe.

    摘要翻译: 一种驱动轴的制造方法,其特征在于,包括:通过收缩具有均一的第一强度的金属管的一侧来形成第一轴单元; 通过拉拔与第一轴单元成一体的金属管的中间部分来减小金属管的中间部分的厚度; 在所述金属管的另一侧的内侧表面上形成强度降低单元,所述强度降低单元具有比所述第一强度小的第二强度,通过将另一侧的内侧表面与一侧相反地预定距离进行热处理 的金属管; 并且通过使具有强度降低单元的金属管收缩而形成第二轴单元而不使中间部的任何部分变形,其中第二轴单元通过对金属管中的强度降低单元的部分施加压力而形成 在相对于金属管的轴向垂直的预定方向上形成。

    Memory device and systems including the same
    2.
    发明授权
    Memory device and systems including the same 有权
    内存设备和系统包括相同

    公开(公告)号:US08811069B2

    公开(公告)日:2014-08-19

    申请号:US13591696

    申请日:2012-08-22

    IPC分类号: G11C11/00

    摘要: The memory device includes a memory cell array, an access control circuit configured to access the memory cell array, a control signal generation circuit configured to generate a control signal for controlling an operation of the access control circuit, and a variable delay circuit configured to generate a delay signal by variably delaying a clock signal according to an external signal. The control signal generation circuit adjusts an activation timing of the control signal in response to the delay signal.

    摘要翻译: 存储装置包括:存储单元阵列,被配置为存取存储单元阵列的访问控制电路;控制信号生成电路,被配置为产生用于控制访问控制电路的操作的控制信号;以及可变延迟电路, 通过根据外部信号可变延迟时钟信号的延迟信号。 控制信号发生电路根据延迟信号调整控制信号的激活定时。

    Memory device, test operation method thereof, and system including the same
    3.
    发明授权
    Memory device, test operation method thereof, and system including the same 有权
    存储器件,其测试操作方法和包括其的系统

    公开(公告)号:US08711641B2

    公开(公告)日:2014-04-29

    申请号:US13239111

    申请日:2011-09-21

    IPC分类号: G11C7/10

    摘要: A test operation method of a memory device includes a reference current generator generating a reference current and providing a reference voltage generated based on the reference current to one of input terminals of a sense amplifier; providing a read voltage generated based on a read current of a memory cell to another one of the input terminals of the sense amplifier; and the sense amplifier comparing the reference voltage with the read voltage.

    摘要翻译: 存储器件的测试操作方法包括产生参考电流的参考电流发生器,并且将基于参考电流生成的参考电压提供给读出放大器的一个输入端; 将基于存储器单元的读取电流产生的读取电压提供给读出放大器的另一个输入端; 并且读出放大器将参考电压与读取电压进行比较。

    MEMORY DEVICE, TEST OPERATION METHOD THEREOF, AND SYSTEM INCLUDING THE SAME
    6.
    发明申请
    MEMORY DEVICE, TEST OPERATION METHOD THEREOF, AND SYSTEM INCLUDING THE SAME 有权
    存储器件,其测试操作方法和包括其的系统

    公开(公告)号:US20120140576A1

    公开(公告)日:2012-06-07

    申请号:US13239111

    申请日:2011-09-21

    IPC分类号: G11C7/06

    摘要: A test operation method of a memory device is provided. The test operation method includes a reference current generator generating a reference current and providing a reference voltage generated based on the reference current to one of input terminals of a sense amplifier; providing a read voltage generated based on a read current of a memory cell to another one of the input terminals of the sense amplifier; and the sense amplifier comparing the reference voltage with the read voltage.

    摘要翻译: 提供了一种存储器件的测试操作方法。 测试操作方法包括产生参考电流的参考电流发生器,并且将基于参考电流生成的参考电压提供给读出放大器的一个输入端; 将基于存储器单元的读取电流产生的读取电压提供给读出放大器的另一个输入端; 并且读出放大器将参考电压与读取电压进行比较。