Safir Wafers

Sapphire crystal
Sapphire crystal has excellent optical performance, mechanical property and chemical stability. It also has high strength, large hardness and high melting point. Therefore, it is widely used in fabrication of special optical element lens, missile warhead light cover and laser window. Due to particular crystal structure, high chemical stability, better heat dissipation performance, larger sizes and low prices, sapphire crystal become the key substrate material for light-emitting diode.

SiC crystal
Technological capability:
1. 2"-4" SiC wafers, including: N type SiC, semi-insulating 6H-SiC\4H-SiC
2. Surface roughness <0.3nm
3. Microtubules density<10/cm2, stabilized crystal structure (>90%), controlled conduction type (n type or semi-insulating)
4. Self-owned intellectual property right

SiC is an important wide band gap semiconductor material which is considered the representative of third-generation wide band gap semiconductor materials after first-generation (Si, Ge) and second-generation (GaAs, GaP, InP) compound semiconductor materials. The development of Si device performance has been reached the limit. Therefore, the research of wide band gap semiconductor material becomes urgent and important. SiC has attractive properties such as wide band gap, high heat conductivity, high electronic saturated migration rate and has been widely used for fabrication optoelectronic and high frequency high power electronic device.