BTU International, Inc., together with its subsidiaries, engages in the design, manufacture, sale, and service of thermal processing systems that are used in the manufacturing processes, primarily in the electronics and alternate energy industries. It offers thermal processing systems used in the solder reflow and cure stages of printed circuit board assembly; and various systems for the thermal processes used in semiconductor packaging. The company also offers a range of products used primarily in the manufacturing of solid oxide fuel cells; continuous furnaces for solar cell manufacturing; and walking beam and pusher systems for sintering fuel. BTU’s customers comprise multinational original equipment manufacturers and contract manufacturing companies. The company markets its products worldwide through direct sales force and independent sales representatives. It has a license and joint development agreement with Boston University to focus on processes and materials used to manufacture solid oxide fuel cells. The company was founded in 1950 and is headquartered in North Billerica, Massachusetts.