[Google01]

what is vacuum vaporator and whats the difference between cvd and pvd?

[P]

Hmm.   A vacuum evaporator uses a vacuum to lower the boiling point of a liquid so you can evaporate it off at a lower temperature.  Vapour Deposition is something else. This coats a substarate with a chemical in layers, molecule by molecule by sputtering molecules of said chemical onto the surface through a vacuum.  I think you mean the latter.  Have a look at these:





CVD: http://en.wikipedia.org/wiki/Chemical_vapor_deposition
PVD: http://en.wikipedia.org/wiki/Physical_vapor_deposition