Patent ID: 8717778
Filing Date: 2014-05-06
Classification: H05K

Abstract:
1. An electronic device comprising: a circuit board on which an electronic component is mounted, a through-hole being made in the circuit board, a ground pattern being spread around the through-hole on a surface of the circuit board; a first plate material which is used as a ground, the first plate material facing a surface side of the circuit board while being extended in parallel with the circuit board, the first plate material comprising an elastic tongue piece whose leading-end portion contacts surroundings of the through-hole of the circuit board, the elastic tongue piece being cut and lowered onto the circuit board side; and a second plate material which is used as a ground, the second plate material facing a backside of the circuit board while being extended in parallel with the circuit board, the second plate material comprising a boss which is vertically provided toward the through-hole of the circuit board, wherein the leading-end portion of the elastic tongue piece and the boss are tightened to each other, and the leading-end portion of the elastic tongue piece elastically presses a ground pattern which is spread around the through-hole on the surface of the circuit board.