Patent ID: 6964731

Claim:
A method of rendering a surface of a pane of glass resistant to soiling and staining, comprising: providing a sheet of glass having a clean interior surface and a clean exterior surface; surface and a sputtering line comprising a series of sputtering chambers each having a plurality of transport rollers for conveying the sheet of glass along the sputtering line, at least one of the sputtering chambers comprising a downward sputtering chamber having an upper target positioned above the transport rollers, a second of the sputtering chambers comprising an upward sputtering chamber having a lower target positioned below the transport rollers; positioning the sheet of glass on the transport rollers in the downward sputtering chamber such that the interior surface is oriented toward the upper target and sputtering the upper target to deposit a dielectric layer on one of the interior surface of the glass or a film stack layer previously deposited on the interior surface of the glass; positioning the sheet of the glass on the transport rollers in the upward sputtering chamber such that the exterior surface is oriented toward the lower target and sputtering the lower target to deposit a water-sheeting coating on the exterior surface of the glass.