CPS Technologies makes thermal management components for electronics using aluminum silicon carbide (ALSiC) metal matrix composites. It sells a wide variety of products, including substrates, baseplates, and heat spreaders that are used by customers in motor controller and wireless communications component applications. It specializes in metal matrix composites (MMCs), which are a class of materials consisting of a combination of metal and ceramic. Founded in 1987, the company is headquartered in Norton, Massachusetts.