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    • 1. 发明授权
    • Water cooled inverter
    • 水冷变频器
    • US06621701B2
    • 2003-09-16
    • US10195561
    • 2002-07-16
    • Akihiro TambaTakayoshi NakamuraRyuichi SaitoNaohiro Momma
    • Akihiro TambaTakayoshi NakamuraRyuichi SaitoNaohiro Momma
    • H05H720
    • H05K7/20927H01L2924/0002H01L2924/1627H01L2924/00
    • 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.
    • 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。
    • 8. 发明授权
    • Stacked MOS transistor flip-flop memory cell
    • 堆叠MOS晶体管触发器存储单元
    • US4894801A
    • 1990-01-16
    • US77176
    • 1987-07-24
    • Ryuichi SaitoNaohiro Momma
    • Ryuichi SaitoNaohiro Momma
    • G11C11/41H01L21/8244H01L27/11
    • H01L27/11
    • A semiconductor memory including two cross-coupled driver MOS transistors respectively having source and drain regions within a semiconductor substrate and each of the drain regions being in ohmic contact with the gate electrode of the other driver MOS transistor. The gate electrodes of the driver MOS transistors are formed in a first-level polycrystalline silicon (polysilicon) layer and the two transfer MOS transistors respectively have their source and drain regions formed in portions of a second-level polysilicon layer. The driver regions are formed so as to be independently brought into ohmic contact with the respective drain regions of the driver MOS transistors, and each of the transfer MOS transistors have a gate electrode effected in a third-level polysilicon layer which also defines a word line. Two load resistors are respectively formed in those regions of the second-level polysilicon layer which extend from the drain regions of the transfer MOS transistors to a power supply potential line, and wherein the corresponding regions of the load resistors are connected to the power supply potential line in the second-level polysilicon layer. Two metallic data lines are respectively brought into ohmic contact with the source regions of the two transfer MOS transistors and wherein the ground wirings of the memory cell are respectively defined by extending portions of the source regions of the two driver MOS transistors.
    • 一种半导体存储器,包括分别在半导体衬底内具有源极和漏极区域的两个交叉耦合的驱动器MOS晶体管,并且每个漏极区域与另一个驱动器MOS晶体管的栅电极欧姆接触。 驱动器MOS晶体管的栅电极形成在第一级多晶硅(多晶硅)层中,并且两个转移MOS晶体管分别具有形成在二级多晶硅层的一部分中的源极和漏极区域。 形成驱动器区域以独立地与驱动器MOS晶体管的漏极区域欧姆接触,并且每个传输MOS晶体管都具有在第三级多晶硅层中实现的栅电极,该第三级多晶硅层还限定字线 。 分别在从传输MOS晶体管的漏极区域延伸到电源电位线的第二级多晶硅层的那些区域中分别形成两个负载电阻器,并且其中负载电阻器的相应区域连接到电源电位 线在二级多晶硅层。 两个金属数据线分别与两个传输MOS晶体管的源极区域欧姆接触,并且其中存储单元的接地布线分别通过延伸两个驱动器MOS晶体管的源极区域的部分来限定。