| 摘要 |
In a drive circuit for an electric motor, there is provided a circuit board, at least one semiconductor device mounted to the circuit board and a spacer. The semiconductor device has a semiconductor chip, a chip package incorporating therein the semiconductor chip and comprising a mounting member for mounting on the circuit board, and terminals for connections of the semiconductor chip to the circuit board. The spacer is interposed between the circuit board and the mounting member of the chip package so as to provide a space between the circuit board and the chip package.
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