Patent ID: 9412711
Filing Date: 2016-08-09
CPC Classification: H01L

Claim Text:
1. An electronic device comprising: an electronic element including an insulating protective layer; a wire bonded to the electronic element through an opening formed in the protective layer; and a sealing resin covering the protective layer and the wire, wherein the electronic element includes a bonding pad to which the wire is bonded, the bonding pad includes a Pd layer, the wire has a bonding portion that is circular in plan view, and the bonding portion directly contacts a surface of the Pd layer, the surface of the Pd layer has a maximum height difference of 40 nm or less, the bonding portion of the wire has an inwardly descending annular upper surface that is disposed higher with respect to the electronic element than an upper surface of the protective layer, and the bonding pad includes an extended part surrounding a lower part of the bonding portion of the wire, the extended part including an inner face and an outer face, the inner face being closer to the lower part of the bonding portion than is the outer face, the outer face directly contacting the sealing resin.