WIRING BOARD WITH PIN AND ELECTRONIC DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a wiring board having pins with which electronic components mounted thereon can be correctly connected to external electric circuits without allowing lead pins from coming off easily, and an electronic device. SOLUTION: The board is constructed in such a manner that pin attaching pads 2b electrically connected to a wiring conductor 2 are provided on the lower surface of an organic material-based insulating board 1 having the conductor 2 and lead pins 3 each having an approximately disk-like large diameter part 3a on the upper edge part are erected on the pads 2b so that a solder 9 intervenes between the upper edge surface and the side of the each part 3a and the each pad 2b. Formulas 0.05 mm<=T<=0.3 mm and 0.25<=D/T<=1.5 are satisfied where the thickness of the part 3a is T and the distance between the external circumference of the pad 2b and the part 3a is D.