CIRCUIT STRUCTURE
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United States of America Patent
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app pub date -
Mar 15, 2016
filing date -
Mar 25, 2015
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Abstract
A circuit structure that has a high rigidity, has high cooling performance for an electronic component, and can reduce electrical resistance between the electronic component and a bus bar. The circuit structure has a circuit board, bus bars, a binding material, metal chips, and electronic components. The circuit board has opening portions that penetrate in the thickness direction. The bus bars are overlaid on the circuit board. The binding material is interposed between the circuit board and the bus bars and binds them. The metal chips are arranged inside the opening portions and also placed on the bus bars. The metal chips each have a top face, which is located in approximately the same plane as an opening end face of an opening portion, and a bottom face, approximately the entire surface of which is joined to a bus bar. The electronic components are soldered to the circuit board and the top faces of the metal chips.
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