| 摘要 |
A pressing portion of a fixture is put on a lid of a semiconductor package, and anchor portions on the opposite sides of the pressing portion are opposed to a baseplate. Two screw members are passed individually through opening parts formed spanning the pressing portion and anchor portions and threadedly engage with a heat sink through the baseplate. If the screw members are tightened in this state, the anchor portions are pressed by the baseplate, and the pressing portion presses the lid of the semiconductor package, whereby the baseplate is fixed to the heat sink in pressure contact with it.
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