Patent ID: 7891089

Claim:
A method of manufacturing an electronic device including an electronic component on a printed circuit board comprising the steps of: (a) providing the electronic component having an electrode pad thereon; (b) providing a printed circuit board comprising an insulating layer and an outermost conductor layer formed on the insulating layer and including an electrode land; (c) conveying a metal wire to the electrode land of the printed circuit board using a positioning apparatus, the metal wire being made of a conductive material having a property of at least one of flexibility, elasticity and pliability; (d) recognizing a land bonding point of the electrode land; (e) compression-bonding and joining a tip end of the metal wire to the land bonding point of the electrode land; (f) looping the metal wire; (g) cutting the metal wire; (h) fusing a tip end portion of the cut metal wire to form a ball thereon to form a component mounting pin for mounting the electronic component; (i) conveying the metal wire to a next land of the printed circuit board; (j) after executing (c)-(i) repeatedly to form a plurality of component mounting pins on the printed circuit board, fixing the electronic component and the printed circuit board to each other by urging the component mounting pin against the electrode pad of the electronic component and electrically connecting the mounting pin to the electrode pad by mechanical force of repulsion without soldering fixing said printed circuit board to a case of said electronic device; and fixing said printed circuit board and said electronic component to each other by adhesive such that the mounting pin remains electrically connected to the electrode pad by mechanical force of repulsion without soldering.