Entegris, Inc. is a global developer, manufacturer and supplier of products and materials used in processing and manufacturing in the semiconductor and other high-technology industries.It designs, manufactures and markets its products through three business segments: contamination control solutions segment, which offers a range of products that purify, monitor and deliver critical liquids and gases to the semiconductor manufacturing process and similar manufacturing processes; microenvironments segment, which offers products to preserve the integrity of wafers, reticles and electronic components at various stages of transport, processing and storage, and specialty materials segment, which offers materials, components and services to a range of customers in the semiconductor industry and in adjacent and unrelated industries. In April 2014, the Company acquired ATMI, Inc. (ATMI), creating a supplier of products and materials for semiconductor and other advanced manufacturing.