Entegris, Inc. engages in the development, manufacture, and supply of specialty materials for the microelectronics industry. It operates through the following segments: Materials Solutions (MS), Microcontamination Control (MC), and Advanced Materials Handling (AMH). The MS segment provides materials-based solutions, such as chemical mechanical planarization slurries and pads, deposition materials, process chemistries and gases, formulated cleans, etchants, and other specialty materials. The MC segment offers advanced solutions that improve customers' yield, device reliability, and cost by filtering and purifying critical liquid chemistries and gases used in semiconductor manufacturing processes and other high-technology industries. The AMH segment develops solutions that improve customers' yields by protecting critical materials during manufacturing, transportation, and storage, including products that monitor, protect, transport and deliver critical liquid chemistries, wafers, and other substrates for a broad set of applications in the semiconductor, life sciences, and other high-technology industries. The company was founded in 1966 and is headquartered in Billerica, MA.