BTU is a wholly owned subsidiary of Amtech Group ((NASDAQ: ASYS)), a supplier of advanced heat treatment technology for electronic manufacturing worldwide, focusing on solutions in the electronic manufacturing market for thermal processing equipment. BTU's high-performance product - a convection reflow furnace is used in the production of SMT printed circuit board components and semiconductor packaging processes. BTU also specializes in precision control, high temperature belt furnaces suitable for a wide range of custom applications such as brazing, direct bond copper, diffusion furnaces, aluminum sintering and advanced solar cell processing.

BTU has operations in Billerica, Massachusetts, USA and Shanghai, China, with its sales and services offices in more than 30 countries. Since 1950, BTU International has been a trusted name for customers of high-tech thermal processing solutions that need to solve the challenges of high-volume thermal processing. BTU's products perform well in processes where precise control of atmosphere and temperature is essential to product yield. BTU's extensive patent library includes travel gas barrier technology and other advances.

BTU’s parent company, Amtech, was founded in 1981. It is a trusted global supplier of basic semiconductor equipment and consumables, serving various industries in the power semiconductor market, including mobile, computing, industrial, automotive, telecommunications, medical and so on. .