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    • 1. 发明专利
    • Semiconductor device and inverter device using the same
    • 使用其的半导体器件和反相器器件
    • JP2013172112A
    • 2013-09-02
    • JP2012036927
    • 2012-02-23
    • Hitachi Ltd株式会社日立製作所
    • ANDO TAKUJIAZUMA KATSUNORIMORI MUTSUHIRO
    • H01L25/07H01L25/18
    • PROBLEM TO BE SOLVED: To provide a semiconductor device which inhibits peeling of a terminal joint part even if an ambient temperature of the semiconductor device rises due to an external factor.SOLUTION: A semiconductor device 300 includes: multiple semiconductor modules 200a, 200b; a first housing 108 fixing the multiple semiconductor modules 200a, 200b; and a lid 120 mounted on the housing 108. The multiple semiconductor modules 200a, 200b include metal bases, ceramic plates respectively mounted on the metal bases, terminals 111a, 111b, 112a, 112b, 115 to 117 provided on the ceramic plates and connected with wiring patterns, and semiconductor elements connected with the wiring patterns. The lid 108 directly contacts with protruding parts provided at the terminals 111a, 111b, 112a, 112b, 115 to 117 and is mounted thereon.
    • 要解决的问题:为了提供即使半导体器件的环境温度由于外部因素而上升,也抑制端子接头部分的剥离的半导体器件。解决方案:半导体器件300包括:多个半导体模块200a,200b; 固定多个半导体模块200a,200b的第一壳体108; 以及安装在壳体108上的盖120.多个半导体模块200a,200b包括金属基底,分别安装在金属基底上的陶瓷板,设置在陶瓷板上的端子111a,111b,112a,112b,115至117,并与 布线图案和与布线图案相连的半导体元件。 盖108直接与设置在端子111a,111b,112a,112b,115至117处的突出部分接触并安装在其上。
    • 3. 发明专利
    • Semiconductor device and power converter using thereof
    • 半导体器件和功率转换器
    • JP2011078187A
    • 2011-04-14
    • JP2009225914
    • 2009-09-30
    • Hitachi Ltd株式会社日立製作所
    • MORI MUTSUHIRO
    • H02M7/48H01L29/47H01L29/861H01L29/872
    • H01L27/0664H01L29/7391H01L29/7395
    • PROBLEM TO BE SOLVED: To solve the problem that a flywheel diode using a conventional pn junction used for a power converter is large in conduction loss due to a large forward voltage since its life time is controlled to be short, and is further large in switching loss due to a large reverse recovery current at reverse recovery, resulting in a large loss in the power converter. SOLUTION: A semiconductor device lets a current flow via a pn diode which is small in forward voltage when the forward current flows, and reversely recovers it via a Schottky diode which is small in reverse recovery current at reverse recovery. Moreover, it has a switching means between the pn diode and the Schottky diode. It can reduce a loss at reverse recovery by lowering the forward voltage of a flywheel diode, therefore a semiconductor device with a small loss and further a power converter with the same can be provided. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题为了解决由于其正常电压由于其寿命被控制为短而使用用于功率转换器的常规pn结的续流二极管的传导损耗大的问题,并且更进一步 由于反向恢复时的大的反向恢复电流导致开关损耗大,导致功率转换器的损耗大。 解决方案:半导体器件通过正向电流流动时正向电压小的pn二极管产生电流,并通过反向恢复电流反向恢复电流小的肖特基二极管反向恢复电流。 此外,它在pn二极管和肖特基二极管之间具有开关装置。 通过降低续流二极管的正向电压,可以减少反向恢复时的损耗,因此可以提供具有小损耗的半导体器件和具有相同功率转换器的功率转换器。 版权所有(C)2011,JPO&INPIT