Galaxy Compound Semiconductors, Inc., a member of the IQE plc Group of companies, specializes in manufacturing the highest quality Indium Antimonide (InSb) and Gallium Antimonide (GaSb) single crystal substrates.

World class materials manufacture from the USA
Based in Spokane, WA USA, Galaxy is the world's leading supplier of GaSb and InSb materials. Beginning with the highest purity starting elements available, we grow our antimonide crystals by the Czochralski boule pulling method. Using advanced equipment and ISO 9001:2008 certified processes, we assure our customers of a continuous and highest grade supply of these critical antimonide based substrates. Our GaSb and InSb wafers provide the most advanced solutions for today's stealth, space, transportation, biomedical, and other key military and commercial infrared (IR) markets.

Advanced infrared material solutions
Galaxy's substrates are acclaimed for their outstanding mobility, wafer flatness, and lack of crystalline defects. We offer up to 100mm (4-inch) diameter GaSb wafers and 125mm (5-inch) diameter InSb, with 150mm InSb substrates in final development. We also offer Ultra-low doped (ULD) n-type GaSb for extended IR wavelength capability.