A semiconductor device includes an insulating substrate, a semiconductor element provided on the insulating substrate, a case frame, a press-fit terminal, and a sealing member provided on an inner side of an inner wall part on the insulating substrate to seal the semiconductor element. The case frame is made of an insulating material and includes an outer wall part, an inner wall part, a recess bottom surface forming a recess together with the outer wall part and the inner wall part. The press-fit terminal includes a base part, a body part, and a press-in portion. The base part is embedded in the recess bottom surface and the body part stands upright from the recess bottom surface such that the body part extends between the inner wall part and the outer wall part, and the press-in portion protrudes up out of the recess.