The durability of thin metal coatings and particularly substantially transparent copper and silver plus noble metal coatings and their ability to withstand corrosive environments is improved by overcoating the metal layers with a double coating of dielectric. The first coating is made up of dielectric...http://www.google.es/patents/US5763063?utm_source=gb-gplus-sharePatente US5763063 - Multiple layer thin films with improved corrosion resistance
Multiple layer thin films with improved corrosion resistance
