Patent ID: 7633148

Claim:
A semiconductor device comprising: a mounting board having conductive pads on a mounting surface; at least one semiconductor chip having conductive pads formed at positions corresponding to the conductive pads on the mounting board, when a principal surface of the semiconductor chip facing toward the mounting board; conductive nanotubes extending from each of the conductive pads of one of the mounting board and the semiconductor chip; and a press mechanism for pressing the semiconductor chip against the mounting board so as to curve the conductive nanotubes, to mount the semiconductor chip on the mounting board by restricting a position of the semiconductor chip in the mounting surface, in a state that tips of the conductive nanotubes are in contact with the conductive pads not formed with the conductive nanotubes, wherein surfaces of the conductive pads formed with the conductive nanotubes among the conductive pads of the mounting board and the conductive pads of the semiconductor chip define a bottom of a recess, and roots of the conductive nanotubes are fixed to the bottom of the recess.