Coatings on glass fulfill a wide range of functions and supply a big variety of special traits to the end product, however in order to reach this goal special requirements applies to the coating process.
As glass is translucent, any defects in the sputtered layer would interfere the visual appearance and it’s functionality. Thus coatings not only need to be long lasting but also very uniform which requires a particular grain size and homogeneity of the target material. At the same time a target needs offer a low contamination rate to reach an optimal result.
Equally important is the efficiency and stability of the production process. High power density and sputtering rate as well as the ability for granular steering are key to a high yield and maximum uptime.