Patent ID: 9054093
Filing Date: 2015-06-09
Classification: H01L

Abstract:
1. A semiconductor device comprising: a wiring board having a plurality of electrodes, and a semiconductor chip which is mounted over the wiring board and coupled to the electrodes via solder, wherein the semiconductor chip includes a rectangular substrate, an insulating film which is formed over the substrate, a plurality of openings which are formed in the insulating film and arranged along a first side of the substrate, a plurality of electrode pads which are situated in the respective openings, and conductor posts which are formed over the respective electrode pads and coupled to the solder and at least part of the periphery of each of which is situated over the insulating film; wherein when a region where each of the conductor posts is overlapped with the insulating film is designated as an overlapped region, a first width which is the width of the overlapped region situated on a first straight line extending from the center of a first conductor post closest to one end of the first side of the substrate as a starting point to the center of the substrate as an end point is smaller than a second width which is the width of the overlapped region on an extension line extending in a direction passing through the center of the first conductor post of the first straight line toward the external side of the substrate, and wherein a second straight line passing through the center of the first conductor post and the center of a first opening overlapped with the first conductor post and the first side intersect with each other at an angle other than 90°.