The most straightforwardmethod to change the surface properties of a ma- rial is to deposit a thin ?lm or coating on it. Hence, it is not surprising that an overwhelming amount of scienti?c and technical papers is published each year on this topic. Sputter deposition is one of the many so-called physical vapour deposition (PVD) techniques. In most cases, sputter deposition uses a magnetically enhanced glow discharge or magnetron discharge to produce the ions which bombard and sputter the cathode material. In the ?rst chapter of this book (Chap. 1), the details of the sputter process are...