what is physical vapour deposition
Physical vapor deposition (PVD) describes a variety of vacuum deposition methods which can be used to produce thin films. PVD uses physical process (such as heating or sputtering) to produce a vapor of material, which is then deposited on the object which requires coating.PVD is used in the manufacture of items which require thin films for mechanical, chemical or electronic reasons. Evaporative deposition: In which the material to be deposited is heated to a high vapor pressure by electrically resistive heating in low vacuum. 2  Pulsed laser deposition: In which a high-power laser ablates material from the target into a vapor.