Patent ID: 8982564
Filing Date: 2015-03-17
Classification: H01L,H05K

Abstract:
1. An electronic device comprising: a printed circuit board that has a prohibited region in which arrangement of a wiring pattern is prohibited, the prohibited region being formed to be directly adjacent to an edge of the printed circuit board; an electronic component mounted on the printed circuit board; a heat dissipation fin provided on the electronic component; and a fixing unit that fixes the heat dissipation fin by pressing the heat dissipation fin against the printed circuit board side, wherein the fixing unit exerts an elastic force that presses the heat dissipation fin against the printed circuit board side by being locked to a notch formed in the prohibited region of the printed circuit board, a hook portion of the fixing unit that is locked to the notch is arranged in the prohibited region, and the notch extends from the edge of the printed circuit board into the prohibited region.