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Transistor package structured to provide heat dissipation enabling use of silicon carbide transistors and other high power semiconductor devices
Transistor package structured to provide heat dissipation enabling use of silicon carbide transistors and other high power semiconductor devices
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机译:晶体管封装结构可提供散热,从而可使用碳化硅晶体管和其他大功率半导体器件
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摘要
A package for relatively high power transistors including heat conducting mounting flange having a relatively large "footprint" relative to the area covered by at least one active chip supported thereby and comprised of a plurality of bipolar silicon-carbide transistors. The transistors are located on a dielectric substrate brazed to the flange. A plurality of screw mounting holes, preferably eight in number, are included in the mounting flange adjacent the outer edge of the dielectric substrate so as to surround the chip. Mounting screws in the eight mounting holes together with a relatively large flange/ground plane interface significantly improves heat dissipation for the heat generated by the silicon carbide transistors by promoting radial heat spreading through the heat conductive metal flange.
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