Patent ID: 9379085
Filing Date: 2016-06-28
CPC Classification: B23K,H01L

Claim Text:
1. A wire bonding structure comprising a wire that comprises: a first bonding portion bonded to a first bonding target; and a second bonding portion bonded to a second bonding target; wherein the first bonding portion includes a front bond portion, a rear bond portion, and an intermediate portion between the front bond portion and the rear bond portion, the front bond portion being closer to the second bonding portion than the rear bond portion is, each of the front bond portion and the rear bond portion having a bonding surface and an upper outline opposite to the bonding surface, the bonding surface being bonded to the first bonding target more strongly than the intermediate portion is, wherein the second bonding portion is smaller in bonding length in a longitudinal direction of the wire than the first bonding portion, wherein the first bonding portion is provided at an end of the wire, wherein the intermediate portion has an under outline facing the first bonding target and extending from the rear bond portion to the front bond portion, and the entirety of the under outline of the intermediate portion is closer to the first bonding target than is the upper outline of each of the front bond portion and the rear bond portion, and wherein the intermediate portion is smaller in width than each of the front bond portion and the rear bond portion as viewed in a normal direction of the first bonding target.