Patent ID: 7815095

Claim:
A wire bonding method for bonding a wire between a first bonding point and a second laterally offset bonding point using a capillary, comprising: bonding a ball formed on a tip end of the wire to form an enlarged lower base at said first bonding point and an upper riser part having a smaller diameter than the lower base; and immediately bending the upper riser part of the wire, after the bonding, to extend all sides of the upper riser part obliquely upward and away from a vertical center line of the bonded ball, to incline toward said second laterally offset bonding point, said upper riser part being formed by a top portion of the ball which has entered an opening of said capillary and which has been shaped at the time of the bonding of said ball to said first bonding point, the upper riser part being larger than the wire diameter and inclined from the vertical center line of the enlarged base when the capillary is moved obliquely upward and away from the bonded ball wherein the upper riser part is bent to have a slanted parallelogram cross section.