| 摘要 |
PURPOSE:To protect the first contact of a bonding pad and a wiring to an internal element against breakage of wiring caused by corrosion by water contents by covering it with a ball of bonding wire connecting part sufficiently. CONSTITUTION:A ball 4' of a bonding wire 3' which is bonded to an opening 2' of a protective film on a bonding pad 1' is arranged on a contact 6' of the bonding pad and a wiring 5' connected to an internal element. Accordingly, it becomes possible to prevent a failure of conduction caused by progress of corrosion of aluminum in the opening part and fusion of aluminum in said part by arranging the contact under the ball. As a thickness of the ball part 4' is thick enough compared with that of the bonding pad 1', the characteristics can be maintained for a long term. |
