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热词
    • 5. 发明授权
    • Semiconductor component which can be controlled by a field effect
    • 可以通过场效应控制的半导体元件
    • US06271562B1
    • 2001-08-07
    • US09259636
    • 1999-03-01
    • Gerald DeboyJens-Peer StenglJenoe TihanyiHeimo Graf
    • Gerald DeboyJens-Peer StenglJenoe TihanyiHeimo Graf
    • H01L2976
    • H01L29/7802H01L29/0634H01L29/0696H01L29/0847H01L29/0878H01L29/1095H01L29/7395H01L29/7397H01L29/7813
    • A power semiconductor component that can be controlled by a field effect has a multiplicity of parallel-connected individual components disposed in cells, the cells are disposed tightly packed on a relatively small space in a cell array. Parallel-connected source zones of the cells have shadowed regions that in each case reduce an effective W/L channel ratio in the cells containing the shadowed regions. The invention has the advantage that because of the provision of the shadowed regions inside the source zones that are preferably undoped or at least doped much weaker than the source zones, the critical regions in the cell array with the highest current density are specifically moderated. Thus the current density in the current-carrying filament of the cell is more homogeneously distributed. This measure renders it possible to reduce the cell grid spacing of the cells in the cell array, or to reduce the forward resistance per unit area, and this leads simultaneously to a reduction in the power loss.
    • 可以通过场效应来控制的功率半导体元件具有设置在单元中的多个并联连接的各个组件,这些单元被紧密地封装在单元阵列的较小空间上。 单元的平行连接的源区具有阴影区域,每个区域在每个情况下降低包含阴影区域的单元格中的有效W / L通道比。 本发明的优点在于,由于在源极区内设置优选未掺杂或至少掺杂得比源极区弱的阴影区域,所以具有最高电流密度的电池阵列中的临界区域被特别缓和。 因此,电池的载流灯丝中的电流密度更均匀分布。 该测量使得可以减小单元阵列中的单元格的单元格间距,或者减小每单位面积的正向电阻,并且这同时导致功率损耗的降低。