| 摘要 |
PROBLEM TO BE SOLVED: To inhibit deterioration of heat radiation performance.SOLUTION: A circuit structure 10 includes: electronic components 11, 12; a circuit board 15 on which the electronic components 11, 12 are mounted; a heat radiation member 20 which is overlapped with the circuit board 15 and radiates heat of the circuit board 15; and a spacer 27 disposed between the circuit board 15 and the heat radiation member 20. A gas suction passage 21 for suctioning a gas and thereby causing the circuit board 15 and the heat radiation member 20 to adhere to the spacer 27 is formed in the heat radiation member 20. In the spacer 27, suction holes 28 are formed in positions, which continue into the suction passage 21 and are covered by the circuit board 15, penetrating through the spacer 27. |
