Patent ID: 9445489
Filing Date: 2016-09-13
CPC Classification: H05K

Claim Text:
1. An electronic control unit comprising: a board including a protection layer and a ground pattern covered with the protection layer, the ground pattern having an exposed portion exposed outside the protection layer; a first electronic device mounted on the board and having a first anode terminal, the first electronic device further having a first cathode terminal; a second electronic device mounted on the board and having a second anode terminal, the second electronic device further having a second cathode terminal; a heatsink supporting the board, and a fastener inserted through an insertion hole of the exposed portion, the fastener electrically connecting the ground pattern to the heatsink while fixing the board to the heatsink, wherein the exposed portion is located on the cathode terminal sides of the first and second electronic devices, and the first cathode terminal and the second cathode terminal are commonly connected to the ground pattern, the fastener is used for the first electronic device and the second electronic device, the first cathode terminal and the second cathode terminal are directed to the fastener, and the fastener is located between a first imaginary line, which connects the first anode terminal and second the cathode terminal and the first cathode terminal, and a second imaginary line, which connects the second anode terminal and the second cathode terminal.