砷化镓材料发展和市场前景

Development Trend and Market Prospects in GaAs Materials

综述世界GaAs材料器件的产销情况、市场前景及GaAs材料的发展趋势。预测2 0 0 0年GaAsIC用于通讯将占GaAsIC市场的 71 % ,并以年均增长率 1 5%的速度发展。发光器件 1 999年增长 1 2 % ,其中激光器件增幅最大 ,达 1 6%。GaAs材料电子器件和光电器件的比例约为 2∶3。对大直径 (Φ76mm以上 )、低位错、低热应力、高质量的GaAs单晶有较大的需求量。VB、VGF和VCZ是满足这些要求的最佳GaAs单晶生长方法。

The development trend and market prospects of GaAs devices and GaAs materials were reviewed. It was predicted that 71% of the GaAs integrated circuits will be used in telecommunication with an annual increasing rate of 15% in 2000. In 1999, there was 12% annual increase of LED devices, most of which are laser diode devices (up to 16%). The ratio between electronics devices and optoeletronic devices is estimated to be approximately 2∶3. The rapid development of telecommunication needs large amount of high quality, large diameter (Φ>76 mm) GaAs single crystal and wafers because of its low density of dislocation and its low thermal stress. VB, VGF and VCZ are the feasible techniques to grow such GaAs crystals.