Patent ID: 7748995

Claim:
A USB application device, comprising: a casing comprising a top wall, a bottom wall opposite to the top wall, a fixing wall extended from the top wall and towards the bottom wall and a gap formed between a bottom edge of the fixing wall and the bottom wall; a printed circuit board received in the casing and comprising a top surface, a bottom surface opposite to the top surface, a front end portion and a rear end portion opposite to the front end portion, the rear end portion of the printed circuit board being supported by a supporting portion formed in the casing; a plurality of contacts disposed on the top surface of the front end portion of the printed circuit board; an integrated circuit fixed on the bottom surface of a middle portion of the printed circuit board between the front end portion and the rear end portion, and electronically connected to the contacts, and having a printed surface; and wherein the integrated circuit and the middle portion of the printed circuit board are sandwiched in the gap of the casing, the printed surface of the integrated circuit contacts an inner surface of the bottom wall of the casing so as to support and fix the printed circuit board, and the bottom edge of the fixing wall contacts the top surface of the middle portion of the printed circuit board, and the supporting portion formed in the casing has a top surface connected to the bottom surface of the rear end portion of the printed circuit board and at least one side surface connected to a side surface of the integrated circuit.