ELECTRONIC CIRCUIT DEVICE AND MANUFACTURING METHOD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an electronic circuit device which enables heat radiation or cooling of a heating component while reducing a thickness of a circuit board on which the heating component is mounted, and to provide a manufacturing method of the electronic circuit board.SOLUTION: An electronic circuit device 10 according to the invention includes: a circuit board 20; a heating component 11 mounted on the circuit board 20; a metal plate 15 which forms a part of an inner layer of the circuit board 20 and protrudes from a side surface of the circuit board 20 to be exposed to the exterior; and a heat pipe 13 connected with an exposed portion of the metal plate 15.