Patent ID: 8670239

Claim:
A heat-release configuration, comprising: a printed board on which a semiconductor component is mounted; a heat-release plate which is mounted on the semiconductor component, and configured to diffuse heat generated by the semiconductor component; and a supporting clamp which is mounted on the heat-release plate, and configured to fix the heat-release plate to the printed board, the supporting clamp including a sectional L-shape in a horizontal direction having two flat surfaces substantially orthogonal to each other, the supporting clamp having on a lower side of each of the flat surfaces an elastically deformable leading end portion which is inserted into a respective hole provided in the printed board and includes a locking claw which is formed in the elastically deformable leading end portion and projects outside the sectional L-shape in a direction that the elastically deformable leading end portion elastically deforms, and the elastically deformable leading end portion is inserted into the respective hole of the printed board by elastic deformation, and the elastically deformable leading end portion returns to an original shape by elasticity after being inserted, such that the locking claw engages with a back face of the printed board, wherein the respective hole provided in the printed board includes a square hole having a rectangular shape and a pattern beaten-copper portion only in a circumferential portion on one side of the square hole in a back face of the printed circuit board, and wherein the locking claw is locked to the circumferential portion on the one side of the square hole including the pattern beaten copper-portion.