作者: Shigeki Harada , Nobutaka Shimizu , Takehisa Tsujimura , Masahiro Sugimoto
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摘要: A ceramic package type semiconductor device comprising: a substrate having wiring pattern layer formed on top surface thereof; at least one element mounted the with face thereof facing downward and electrically connected to patttern layer; metal cap through-hole corresponding an external size of end portion soldered substrate, so that bottom fitting into form flat plane: heatsink member comprising plate which is plane complete hermetic sealing element.