BTU was founded in 1950 in Cambridge, Massachusetts. The company initially produced small ovens for hospital and laboratory use and also made ovens for drying paint, textiles, and rubber, needed by the local market.
By the late 50’s BTU had outgrown its original location and moved to a new facility. The company also decided to focus its business on the emerging transistor market making specially designed alloying furnaces. This was BTU’s pioneering entry into the emerging market for semiconductor manufacturing equipment.
Since then, BTU has continued to expand and grow. In 1972, BTU relocated to Billerica, Massachusetts. The company shipped its first furnace for use in the production of solar cells in 1985. In 1989, to enable further growth, BTU became a publicly traded company on the NASDAQ Global Market with the ticker symbol BTUI.
In the early 90’s, the company entered the solder reflow market, later on pioneering the use of convection and closed-loop convection for this process. BTU also introduced the industry’s first lead-free reflow furnace.
By this time, BTU’s International expansion was well under way. In 1995, BTU hired its first direct employees in mainland China, and almost ten years later these same key employees would play leading roles in the opening of the Asia manufacturing facility in Shanghai, China.
Today the company has more than 250 employees with most of them residing outside the US. The Intellectual Property portfolio includes over 200 patents and patent applications.
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BTU is part of the Amtech Group
Founded in 1981, Amtech Systems is a global supplier of manufacturing equipment and materials for electronic assembly and semiconductor substrate processing. Our reflow equipment is used for advanced semiconductor packaging and demanding electronic assembly applications. Our consumables, parts and services support Chemical Mechanical Planarization (CMP) of conventional and advanced substrates.
Our business segments are made up of our four wholly owned subsidiaries, which manufacture and sell our products under the leading premier brand names: BTU International, Entrepix Inc., PR Hoffman™, and Intersurface Dynamics.
BTU has been a technology leader in the field of thermal process systems since 1950. BTU’s systems are used for semiconductor, advanced packaging, electronics assembly and materials processing.
PR Hoffman offers complete lapping, grinding and polishing machine product lines for a variety of manufacturing processing needs for applications such as SiC, quartz, optics, semiconductor, LED, electronics, ceramics and metalworking.
Founded in 1968, Entrepix, Inc.is a globally recognized expert in chemical mechanical polishing (CMP) and wafer cleaning. Entrepix offers capital equipment, upgrades and related services for the silicon and compound semiconductor cleaning and CMP applications.
Intersurface Dynamics designs, manufactures, and sells application-specific chemicals for processes used in the production of Silicon, Silicon Carbide, and Sapphire wafers: lenses made of different glass and laser materials; integrated circuits; and display and flat glass.