BTU International Poster Presentation Describes Metal Contact Firing Process for Improved Solar Cell Efficiencies

Presentation at the 37th IEEE Photovoltaic Specialist Conference is
scheduled for June 22 from 3:30 -5:00 p.m.

NORTH BILLERICA, Mass., June 16, 2011 — BTU International, Inc., a leading supplier of advanced thermal processing equipment and processes to the alternative energy and electronics manufacturing markets, will present a poster on “Rapid Metallization Paste Firing of Crystalline Silicon Solar Cells” at the upcoming 37th IEEE Photovoltaic Specialist Conference in Seattle.

The Conference will be held on June 19-24, 2011 at the Washington State Convention Center in Seattle, Washington where scientists and engineers from around the world will present and discuss cutting-edge work in advancing solar technology. BTU’s poster, co-authored by Paul Richter, Frank Botttari, Ph.D. and David Wong, Ph.D., will be presented by Paul Richter, Solar Applications Specialist at BTU, on Wednesday, June 22 from 3:30-5:00 p.m. in the Crystalline Silicon session. The poster will present recent advances in the development of new, production-scale, rapid co-firing processes for silver and aluminum metal contact formation leading to improved solar cell efficiencies.

About BTU International

BTU International is a market-leading, global supplier of advanced thermal processing equipment and processes to the alternative energy and electronics manufacturing markets. BTU equipment is used in solar cell, nuclear fuel and fuel cell manufacturing as well as in the production of printed circuit board assemblies and semiconductor packaging. BTU has operations in North Billerica, Massachusetts and Shanghai, China with direct sales and service in the U.S., Asia and Europe. Information about BTU International is available at www.btu.com.

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Company Contact:                                                                    Media Contact:

Jan-Paul van Maaren, Ph.D.                                                       Megan Wendling

Vice President Marketing                                                            MW Associates

BTU International, Inc.                                                                 Phone: (239) 537-6001

Phone: (978) 667-4111