BENSENVILLE, Ill.--(BUSINESS WIRE)--Rubicon Technology, Inc. (NASDAQ:RBCN), a leading provider of sapphire substrates and products to the LED, semiconductor, and optical markets, plans to participate in two investor conferences in August, both in Boston. Bill Weissman, President and CEO, will make a presentation at each conference at the times indicated below. An audio-only webcast of each presentation will be available on Rubicon’s website at http://ir.rubicontechnology.com/calendar.aspx?iid=4


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