Sapphire Equipment and MaterialsGT Advanced Technologies is a leading producer of sapphire crystal growth equipment and materials for the LED, cover and touch screen and other specialty industrial markets. For over 40 years our GT Crystal Systems group has pioneered the development of high quality sapphire material that is known worldwide for its high crystal purity, low light scatter to meet a wide range of applications that demand the highest level of optical performance. Our advanced sapphire furnace (ASF®) is a production ready system that produces high quality boules of exceptional crystal quality. It has become the system of choice for high volume sapphire producers to meet the demand for more sapphire material for the LED, cover and touch screen and other markets. Learn more about why sapphire producers are turning to GT Advanced Technologies ASF furnace to meet their production goals for producing ASF® high quality GT Crystal Systems is known for its high quality sapphire material, HEM® sapphire, which is produced in the Salem, Massachusetts state of the art facility. HEM sapphire is used in a wide variety of markets that demand the highest levels of purity and optical performance. For over 40 years, our crystal growth engineers have been advancing the science of growing high quality sapphire, which has enabled the growth of applications in medical device, aerospace and defense, and other high technology industries. Learn more |








