To provide a high-performance, highly-reliable semiconductor device in which an adhesive used to mount (e.g., flip-chip mount) a semiconductor chip on a substrate has less air bubbles, and a low-cost, efficient method for manufacturing the same. Semiconductor device 10 of the present invention includes semiconductor chip 11 having a plurality of electrode pads 12, and substrate 14 having a plurality of electrode terminals 15 at positions corresponding to electrode pads 12. A plurality of bumps 13, each composed of base part 13A and protruding part 13B having a diameter smaller than the diameter of base part 13A, is formed on at least one of electrode pads 12 in such a way that the respective base parts 13A of bumps 13 are in contact with each other, and semiconductor chip 11 is bonded to substrate 14 with adhesive 17 in a state where bumps 13 are electrically connected to electrode terminals 15.