Semiconductor device and method of manufacturing the same, cirucit board, and electronic instrument

摘要

A method of manufacturing a semiconductor device including: mounting a semiconductor chip in which an integrated circuit is formed on a wiring board having an interconnecting pattern; mounting a board for electrical connection having a plurality of penetrating conductive sections on the wiring board; disposing a first end surface of each of the penetrating conductive sections to face the interconnecting pattern; electrically connecting the first end surface and the interconnecting pattern; and forming a sealing section which seals the semiconductor chip and the board for electrical connection such that a second end surface of each of the penetrating conductive sections is exposed from the sealing section.