| 摘要 |
Tin is added to a zinc cathode target to enhance the sputter efficiency of t he target. Films deposited using the cathode, e.g., greater than zero but less than 10 weight percent tin and greater than 90 but less than 100 weight percent zinc improve the chemical durability of a high transmittance, low emissivity coating stack over coating stacks having zinc oxides without tin oxide. High transmittance, low emissivity coating stacks are heated with the heated coating having reduced haze by selecting the thickness of metal prime r layer between an infrared reflective film, e.g. a silver film and a dielectr ic film, e.g., a 52-48 zinc stannate, zinc oxide, tin oxide film or a zinc oxid e film. Also disclosed are enhancing films that lower the resistivity of silve r films deposited thereon and improve chemical durability of the coating stack . |
