Sapphire

Sapphire is an alumina (Al2O3) single crystal, the optical penetration with very wide, and have good light transmission from the near-UV (190nm) to infrared. Sapphire crystal with excellent optical properties, mechanical properties and chemical stability, high strength, hardness, corrosion resistance, can work under harsh conditions close to the high temperature of 2000 ℃, which is widely used in infrared military installations, satellite space technology high-intensity laser window materials. Its unique lattice structure, excellent mechanical properties, good thermal properties of sapphire crystal as the practical application of the semiconductor GaN/Al2O3 light-emitting diodes (LEDs), LSI SOI and SOS and superconducting nano-structured thin film is the most ideal substrate material. As in recent years, LED TV, LED the Monitor, the LED of NB, the LED Phone and LED lighting market, the sustained rapid growth, strong impetus to the expansion of demand for the production of LED substrate, sapphire market.