Patent ID: 7511288

Claim:
An ion implantation device which draws out desired ion species from an ion source for creating ions, accelerates or decelerates the ion species into desired energy and scans an implantation surface of a substrate with an ion beam so as to implant the ion beam thereinto, the ion implantation device comprising: a chamber divided type ion beam scanning mechanism constituted so that: first, second and third chambers for allowing the ion beam to pass through are arranged in predetermined places on a beam line of the ion implantation device in this order from an upper stream side, a first gap intervenes between the first chamber and the second chamber, and a second gap intervenes between the second chamber and the third chamber, the second chamber is electrically insulated from the first and third chambers via the first and second gaps, and any one of the first and second gaps obliquely crosses a standard axis of the ion beam at a predetermined angle, the second chamber is connected to a scanning power source which applies an electric potential having desired scanning waveform.