Sapphire Polishing

Rubicon has emerged as the world leader in large diameter sapphire wafers and currently produces six-inch and eight-inch epi-polished sapphire wafers. We produce stress-free, ultra-clean epi-polished wafers with precise orientation, consistent global and local site flatness, including low bow, warp and TTV, meeting the evolving specifications of our customers in the LED, SoS RFIC and optical markets. Superior crystal, dimensional uniformity across the entire substrate and consistency from wafer to wafer facilitate our customers’ epitaxial growth processes and provide them with better chip yields.