Semiconductor pressure sensor and pressure sensing device
    1.
    发明申请
    Semiconductor pressure sensor and pressure sensing device 审中-公开
    半导体压力传感器和压力传感装置

    公开(公告)号:US20050132814A1

    公开(公告)日:2005-06-23

    申请号:US11049872

    申请日:2005-02-04

    Abstract: The object of the present invention is to propose an etch channel sealing structure characterized by excellent impermeability to moisture and resistance to temporal change of the diaphragm in the pressure sensor produced according to the sacrificial layer etching technique, and to provide a pressure sensor characterized by excellent productivity and durability. After a very small gap is formed by the sacrificial layer etching technique, silicon oxide film is deposited by the CVD technique or the like, there by sealing the etch channel. Further, impermeable thin film of polysilicon or the like is formed to cover the oxide film. This allows an etch channel sealing structure to be simplified in the pressure sensor produced according to the sacrificial layer etching technique, and prevents entry of moisture into the cavity, thereby improving moisture resistance. Moreover, sealing material with small film stress reduces temporal deformation of the diaphragm.

    Abstract translation: 本发明的目的是提出一种蚀刻通道密封结构,其特征在于对根据牺牲层蚀刻技术制造的压力传感器中的防潮性和抗隔膜的时间变化具有优异的防渗性,并且提供了一种特征在于优异的压力传感器 生产力和耐久性。 在通过牺牲层蚀刻技术形成非常小的间隙之后,通过密封蚀刻通道,通过CVD技术等沉积氧化硅膜。 此外,形成多晶硅等的不渗透性薄膜以覆盖氧化物膜。 这允许在根据牺牲层蚀刻技术产生的压力传感器中简化蚀刻通道密封结构,并且防止水分进入空腔,从而改善耐湿性。 此外,具有小膜应力的密封材料减小了隔膜的时间变形。

    Semiconductor pressure sensor and pressure sensing device
    5.
    发明授权
    Semiconductor pressure sensor and pressure sensing device 失效
    半导体压力传感器和压力传感装置

    公开(公告)号:US06892582B1

    公开(公告)日:2005-05-17

    申请号:US09936480

    申请日:1999-08-20

    Abstract: The object of the present invention is to propose an etch channel sealing structure characterized by excellent impermeability to moisture and resistance to temporal change of the diaphragm in the pressure sensor produced according to the sacrificial layer etching technique, and to provide a pressure sensor characterized by excellent productivity and durability. After a very small gap is formed by the sacrificial layer etching technique, silicon oxide film is deposited by the CVD technique or the like, thereby sealing the etch channel. Further, impermeable thin film of polysilicon or the like is formed to cover the oxide film.This allows an etch channel sealing structure to be simplified in the pressure sensor produced according to the sacrificial layer etching technique, and prevents entry of moisture into the cavity, thereby improving moisture resistance. Moreover, sealing material with small film stress reduces temporal deformation of the diaphragm.

    Abstract translation: 本发明的目的是提出一种蚀刻通道密封结构,其特征在于对根据牺牲层蚀刻技术制造的压力传感器中的防潮性和抗隔膜的时间变化具有优异的防渗性,并且提供一种特征在于优异的压力传感器 生产力和耐久性。 在通过牺牲层蚀刻技术形成非常小的间隙之后,通过CVD技术等沉积氧化硅膜,从而密封蚀刻通道。 此外,形成多晶硅等的不渗透性薄膜以覆盖氧化物膜。 这允许在根据牺牲层蚀刻技术产生的压力传感器中简化蚀刻通道密封结构,并且防止水分进入空腔,从而改善耐湿性。 此外,具有小膜应力的密封材料减小了隔膜的时间变形。

    Water cooled inverter
    6.
    发明授权
    Water cooled inverter 有权
    水冷变频器

    公开(公告)号:US06621701B2

    公开(公告)日:2003-09-16

    申请号:US10195561

    申请日:2002-07-16

    Abstract: According to the invention, there is provided a water cooled inverter structure forming a plurality of shallow cavities and deep cavities in a housing, fixing a bottom surface of power semiconductor modules to shallow cavities to form a shallow water channel and directly cooling the power semiconductor modules using this shallow water channel. Since cooling water flows fast in the shallow water channel, it is possible to improve a cooling efficiency and also reduce pressure loss using a deep water channel with deep cavities. Furthermore, providing a plurality of cavities makes it possible to reduce a size of the power semiconductor modules and provide a plurality of power semiconductor modules, thus improving reliability. It is possible to place a control board below the water channel to thermally cut off the control board from the power semiconductor modules, which makes it possible to reduce temperature of a control circuit.

    Abstract translation: 根据本发明,提供一种在壳体中形成多个浅空腔和深腔的水冷逆变器结构,将功率半导体模块的底表面固定到浅腔,以形成浅水通道并直接冷却功率半导体模块 使用这个浅水通道。 由于冷却水在浅水通道中快速流动,所以可以提高冷却效率,并且还可以使用具有深空腔的深水通道来减少压力损失。 此外,提供多个空腔使得可以减小功率半导体模块的尺寸并提供多个功率半导体模块,从而提高可靠性。 可以在水通道下方设置控制板,以将功率半导体模块的控制板热切断,从而可以降低控制电路的温度。

    Semiconductor element capable of withstanding high voltage
    8.
    发明授权
    Semiconductor element capable of withstanding high voltage 失效
    能承受高电压的半导体元件

    公开(公告)号:US4402001A

    公开(公告)日:1983-08-30

    申请号:US868791

    申请日:1978-01-12

    Abstract: A semiconductor element such as a thyristor or a transistor which is capable of withstanding a high voltage comprises a semiconductor substrate of a pnpn-four layer structure (for a thyristor) or of a npn-three layer structure (for a transistor). An intermediate p-type layer is composed of a low concentration layer region located adjacent to an n-type layer and a high concentration layer region located adjacent to the other n-type layer. The high concentration layer region is formed through diffusion of aluminium so that the maximum concentration thereof becomes at least equal to 5.times.10.sup.16 atoms/cm.sup.3. A method of manufacturing such semiconductor element is also disclosed.

    Abstract translation: 能够耐受高电压的诸如晶闸管或晶体管的半导体元件包括pnpn四层结构(晶闸管)或npn三层结构(用于晶体管)的半导体衬底。 中间p型层由与n型层相邻的低浓度层区域和与其他n型层相邻的高浓度层区域构成。 通过铝的扩散形成高浓度层区域,使其最大浓度至少等于5×10 16原子/ cm 3。 还公开了制造这种半导体元件的方法。

    Power semiconductor device
    9.
    发明授权
    Power semiconductor device 失效
    功率半导体器件

    公开(公告)号:US5883403A

    公开(公告)日:1999-03-16

    申请号:US720017

    申请日:1996-09-27

    CPC classification number: H01L29/74 H01L29/32 H01L29/861 Y10S257/913

    Abstract: In a semiconductor device, such as a diode and thyristor, having at least one pn junction between a pair of main surfaces, a first main electrode formed on the surface of one of the main surfaces and a second main electrode formed on the surface of the other one of the main surfaces, a semiconductor lattice defect is formed such that its lattice defect density increases gradually in the direction from the first main electrode to the second main electrode. Since the distribution of the carrier density in the conduction state can be flattened, the reverse recovery charge can be reduced substantially without causing the ON-state voltage to increase.

    Abstract translation: 在诸如二极管和晶闸管之类的半导体器件中,在一对主表面之间具有至少一个pn结,形成在一个主表面的表面上的第一主电极和形成在主表面上的第二主电极 主表面中的另一个,形成半导体晶格缺陷,使得其晶格缺陷密度在从第一主电极到第二主电极的方向上逐渐增加。 由于载流子密度在导通状态下的分布可以变平,所以可以大大降低反向恢复电荷,而不会导致导通状态电压增加。

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