Semiconductor device with vertical transistors
    5.
    发明授权
    Semiconductor device with vertical transistors 有权
    具有垂直晶体管的半导体器件

    公开(公告)号:US06828626B2

    公开(公告)日:2004-12-07

    申请号:US10253901

    申请日:2002-09-25

    IPC分类号: H01L2978

    摘要: In a conventional power MOSFET, an electric field concentration occurs at a gate electrode bottom portion on the outermost periphery of an operating area, thereby causing a deterioration in high voltage strength between the drain and the source, or between the collector and emitter. In this invention, a trench at the outermost periphery of an operating area is shallower than trenches of the operating area. Thereby, the electric field concentration at the gate electrode bottom portion on the outermost periphery of the operating area is relieved, and a deterioration in high voltage strength between the drain and source is suppressed. Furthermore, by narrowing the outermost peripheral trench aperture portion, trenches different in depth can be formed by an identical step.

    摘要翻译: 在常规功率MOSFET中,在操作区域的最外周的栅电极底部产生电场浓度,从而导致漏极与源极之间或集电极与发射极之间的高电压强度的劣化。 在本发明中,操作区域的最外周的沟槽比操作区域的沟槽浅。 由此,减轻了操作区域的最外周的栅电极底部的电场浓度,并且抑制了漏极与源极之间的高电压强度的劣化。 此外,通过使最外周沟槽开口部分变窄,可以通过相同的步骤形成深度不同的沟槽。

    Method of manufacturing semiconductor device
    6.
    发明授权
    Method of manufacturing semiconductor device 有权
    制造半导体器件的方法

    公开(公告)号:US06967139B2

    公开(公告)日:2005-11-22

    申请号:US10893223

    申请日:2004-07-19

    摘要: In a conventional power MOSFET, an electric field concentration occurs at a gate electrode bottom portion on the outermost periphery of an operating area, thereby causing a deterioration in high voltage strength between the drain and the source, or between the collector and emitter. In this invention, a trench at the outermost periphery of an operating area is shallower than trenches of the operating area. Thereby, the electric field concentration at the gate electrode bottom portion on the outermost periphery of the operating area is relieved, and a deterioration in high voltage strength between the drain and source is suppressed. Furthermore, by narrowing the outermost peripheral trench aperture portion, trenches different in depth can be formed by an identical step.

    摘要翻译: 在常规功率MOSFET中,在操作区域的最外周的栅电极底部产生电场浓度,从而导致漏极与源极之间或集电极与发射极之间的高电压强度的劣化。 在本发明中,操作区域的最外周的沟槽比操作区域的沟槽浅。 由此,减轻了操作区域的最外周的栅电极底部的电场浓度,并且抑制了漏极与源极之间的高电压强度的劣化。 此外,通过使最外周沟槽开口部分变窄,可以通过相同的步骤形成深度不同的沟槽。

    Bolt and semiconductor manufacturing apparatus
    7.
    发明授权
    Bolt and semiconductor manufacturing apparatus 有权
    螺栓和半导体制造设备

    公开(公告)号:US07554104B2

    公开(公告)日:2009-06-30

    申请号:US11724223

    申请日:2007-03-15

    IPC分类号: H01J37/317

    CPC分类号: H01L21/68785

    摘要: A bolt includes a main body and a spring pin. The main body includes a head and a shaft. The spring pin includes a base portion and an end portion. The shaft includes a portion of external thread and a hollow portion. The head includes a top surface and a hole opened in the top surface. The hole is connected to the hollow portion. The base portion is arranged in the hollow potion to move along an axis of the main body. The end portion is arranged in the hole to move along the axis. The spring pin is energized toward a side of the head such that the end portion protrudes beyond the top surface. The end portion is electrically connected to the portion of external thread.

    摘要翻译: 螺栓包括主体和弹簧销。 主体包括头部和轴部。 弹簧销包括基部和端部。 轴包括一部分外螺纹和一中空部分。 头部包括顶表面和在顶表面中打开的孔。 孔连接到中空部分。 基部布置在中空部分中以沿着主体的轴线移动。 端部布置在孔中以沿轴线移动。 弹簧销朝向头部的一侧被激励,使得端部突出超过顶部表面。 端部电连接到外螺纹的一部分。

    Bolt and semiconductor manufacturing apparatus
    8.
    发明申请
    Bolt and semiconductor manufacturing apparatus 有权
    螺栓和半导体制造设备

    公开(公告)号:US20070243057A1

    公开(公告)日:2007-10-18

    申请号:US11724223

    申请日:2007-03-15

    IPC分类号: H01L21/04 H01L23/544

    CPC分类号: H01L21/68785

    摘要: A bolt includes a main body and a spring pin. The main body includes a head and a shaft. The spring pin includes a base portion and an end portion. The shaft includes a portion of external thread and a hollow portion. The head includes a top surface and a hole opened in the top surface. The hole is connected to the hollow portion. The base portion is arranged in the hollow potion to move along an axis of the main body. The end portion is arranged in the hole to move along the axis. The spring pin is energized toward a side of the head such that the end portion protrudes beyond the top surface. The end portion is electrically connected to the portion of external thread.

    摘要翻译: 螺栓包括主体和弹簧销。 主体包括头部和轴部。 弹簧销包括基部和端部。 轴包括一部分外螺纹和一中空部分。 头部包括顶表面和在顶表面中打开的孔。 孔连接到中空部分。 基部布置在中空部分中以沿着主体的轴线移动。 端部布置在孔中以沿轴线移动。 弹簧销朝向头部的一侧被激励,使得端部突出超过顶部表面。 端部电连接到外螺纹的一部分。