Patent ID: 9530744
Filing Date: 2016-12-27
CPC Classification: H01L

Claim Text:
1. A semiconductor device, comprising: a wiring substrate including a first electrode having a cross-sectional shape which is an inverted trapezoidal shape in which a width of a base end is narrower than a width of a tip end; a semiconductor chip including a second electrode having a cross-sectional shape which is an inverted trapezoidal shape in which a width of a base end is narrower than a width of a tip end; a metal bonding material bonding the tip end of the first electrode and the tip end of the second electrode which face each other; and a first underfill resin filled between the wiring substrate and the semiconductor chip, the first underfill resin covering a side face of each of the first electrode and the second electrode and a side face of the metal bonding material.