Where Design Meets Performance
Custom solutions for the architectural glass industry
Low emissivity, or Low-E coatings on window glass serve to reduce energy costs by reflecting infrared wavelengths outward in hotter weather to prevent indoor heat gain. In colder weather, the coated glass is designed to reflect heat inwards to prevent heat transmission, and thus heat loss to the outdoors. The same glass coating layer stacks are designed to optimize transmission of visible light, reduce glare, and minimize UV wavelength transmission to the indoors. Modern window glass can have more than 15 sputtered thin film coating layers.
Target Materials We Produce
- Silver – Planar & Rotatable Targets
- Gold – Planar Targets
- Titanium Sub-Oxide (TiOx) – Rotatable Targets
- Silicon Aluminum (SiAl) – Rotatable Targets
- ZnSn – Rotatable Targets
- Si – Rotatable Targets
- Sn – Rotatable Targets
- InSn – Rotatable Targets
- NiCr – Planar Targets
- W – Rotatable Targets
Architectural Glass Large Area Coatings
01
Silicon-Aluminum (SiAl)
RSC produces SiAl rotatable targets with varying compositions of Al available according to customer requirements. The presence of aluminum serves to make the sputtering target material conductive which mitigates arcing and allows for a smoother process at higher sputter rates. The alumina doping in the subsequent sputter coated film helps reduce film stress and improve film adhesion.
02
Titanium Oxide (TiOx) Rotatable Targets
The “x” value is less than the usual stoichiometric composition of TiO2, which allows for the target to be conductive for sputtering.
03
Nickel-Chrome
NiCr is a large format planar and rotatable target typically used to deposit a protective, barrier layer for silver coatings.
04
Indium-Tin (InSn)
InSn is rotatable target typically used for reactively depositing indium-tin-oxide (ITO) layers. ITO is a transparent conductive oxide and is also used in architectural glass as a low-E. While not as IR reflective as silver and much higher emissivity, ITO has advantages for being chemically and thermally much more stable and corrosion resistant than silver. ITO layers can be used on a stand alone basis in niche applications or in conjunction with silver layers.
05
Zinc-Tin (ZnSn)
ZnSn is a rotatable target widely used large area coating layer stacks. It is used as a thin zinc stannate (zinc tin oxide) under-layer for depositing a smooth silver layer on top. Zinc stannate layers are also commonly deposited in-between silver layers to protect silver, provide optical transparency, and to improve tempering stability of silver layers.
Collaborate with RSC today!
Delivering what customers want, when they want it.
Whether you’re targeting cost efficiency, grain structure, purity, or other material properties, we tailor our processing to meet your exact specs. With proprietary quality control methods, we ensure each product is free from voids, inclusions, and meets the highest standards of purity and performance.
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