Abstract: A semiconductor device includes: a connection electrode formed on a side of a semiconductor element substrate opposed to a bump, where the semiconductor element substrate includes a semiconductor element; a passivation layer covering the semiconductor element substrate and an end portion of the connection electrode; and a barrier metal layer covering the connection electrode and a portion of the passivation layer so as to be electrically connected to the bump. A recess is formed in a portion of the passivation layer connected with the barrier metal layer.

Abstract: A semiconductor device includes an electronic part including an electrode, a substrate including a substrate electrode electrically connected to the first electrode on an upper surface thereof, the first substrate electrode and the first electrode being arranged, facing each other, a connecting member configured to connect the electrode with the substrate electrode, and a sealing material including a first resin portion which contains flux and contacts at least a connection portion between the connecting member and the substrate electrode, and a second resin portion which contains a lower concentration of flux than that of the first resin portion. A gap between the electronic part and the substrate is filled with the sealing film.