Rubicon Technology (RBCN) is an advanced electronic materials provider that is engaged in developing, manufacturing and selling monocrystalline sapphire and other crystalline products for light-emitting diodes (LEDs), radio frequency integrated circuits (RFICs), blue laser diodes, optoelectronics and other optical applications. The Company applies its proprietary crystal growth technology to produce very high-quality sapphire in a form that allows for volume production of various sizes and orientations of substrates and windows. Rubicon Technology (RBCN) recently reported that it is having another solid quarter and estimates that revenue in the second quarter 2011 should come in at the high end of the $40 million and $43 million range of its previously provided guidance. Pre-tax earnings are also expected to be at the high end of the company’s previous estimates