Rubicon Technology, Inc., a leading provider of sapphire substrates and products to the LED, RFIC, semiconductor, and optical industries, yesterday reported financial results for its second quarter ended June 30, 2013. The Company reported second quarter revenue of $10.6 million as compared with $8.3 million in the prior quarter. Revenue was higher sequentially due to the stronger demand for two- and four-inch core products driven by the strengthening LED market. Raja Parvez, President and CEO of Rubicon Technology, commented, “We saw stronger demand for tw...