Patent ID: 9035436
Filing Date: 2015-05-19
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor chip; an island having an upper surface to which the semiconductor chip is bonded; a plurality of leads arranged around the island; a bonding wire extending between the surface of the semiconductor chip and an upper surface of the lead; and a resin package collectively sealing the semiconductor chip, the island, the leads and the bonding wire; wherein a lower surface of the island and a lower surface of the leads are exposed on a rear surface of the resin package; wherein the island has an area defined by four sides, each of which is not facing any sides of the resin package, in bottom plan view; wherein the leads are arranged on corners of the semiconductor device in bottom plan view, respectively; wherein each of the leads has a side facing the side of the island; wherein the semiconductor device further comprises a facing portion including the side of the island and the side of the lead facing each other; and wherein the facing portion includes an etched portion such that the side of the island and the side of the lead are non-parallel.