Patent ID: 9136218
Filing Date: 2015-09-15
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor chip including a wire and a first protective film formed on the outermost surface of the wire with an opening partially exposing the wire; a second protective film stacked on the semiconductor chip and provided with a through-hole in a position opposed to a portion of the wire facing the opening; an external connection terminal; and an external connection portion formed on the second protective film and in the entire cavity of the through-hole; wherein the second protective film has a thick portion provided outside of a peripheral portion of the through-hole; wherein the peripheral portion of the through-hole in the second protective film is disposed adjacent to the through-hole; wherein the thick portion of the second protective film is disposed adjacent to an outside portion of the external connection portion; wherein a first thin portion is a portion of the second protective film that is thinner than the thick portion and is provided between the peripheral portion and the thick portion; wherein a second thin portion is a portion of the second protective film that is separated from the first thin portion and is provided outside of the thick portion; wherein the second thin portion is thinner than both the peripheral portion and the thick portion; wherein the external connection terminal is formed on a surface of the external connection portion; and wherein the external connection portion is a single layer.