Patent ID: 9607932
Date: 2017-03-28
CPC Classifications: H01L

Claim:
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 leads; 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 lower surfaces 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; wherein the leads are arranged on corners of the semiconductor device in a bottom plan view, respectively; wherein each of the leads has a first side which is parallel with a first side of the resin package in the bottom plan view; wherein each of the leads has a second side which is parallel with a second side of the resin package in the bottom plan view; wherein the first side of the resin package and the second side of the resin package are connected; wherein the resin package is quadrangularly shaped in the bottom plan view; wherein each of the leads has the first side of the lead and the second side of the lead are connected to each other in the bottom plan view; wherein a side surface of the first side of one of the leads is exposed on a side surface of the resin package in bottom plan view; wherein the second side of the one of the leads is facing the second side of the resin package with a distance in the bottom plan view; wherein each of the leads has a third side which is non-parallel with each side of the resin package in the bottom plan view; wherein each of the third sides of the leads is facing a side of the island in the bottom plan view; wherein the semiconductor device further comprises a facing portion including the side of the island and one of the third sides of the leads facing each other and parallel.