Semiconductor device

A semiconductor device includes: a resin case that houses a semiconductor element; a parallel plate that is disposed inside the resin case while being connected with the semiconductor element, the parallel plate including two flat plates parallel to each other with an insulating material therebetween; and two electrodes that are each led out from an upper end of the parallel plate and are disposed on an upper surface of the resin case at a predetermined interval. Upper end portions of the two flat plates of the parallel plate between two electrode lead-out portions are bent toward the outside being a direction in which the upper end portions of the two flat plates become more distant from each other, the two electrodes being led out from the corresponding two electrode lead-out portions.