Entegris is a company that provides advanced materials and process solutions for semiconductors. It operates across the Materials Solutions and the Advanced Purity Solutions segments. The Materials Solutions segment comprises materials-based solutions, including chemical vapor and atomic layer deposition materials, chemical mechanical planarization (CMP) slurries and pads, ion implantation specialty gases, formulated etch and clean materials, etc. The Advanced Purity Solutions segment offers filtration and contamination-control solutions to ensure chemical and substrate purity in semiconductor and high-tech manufacturing.