砷化镓单晶线性孪晶长度判断方法研究

Study on the length judgment method of GaAs single crystal linear twin crystal

本文研究线性孪晶在晶体中的生长存在规律性,根据几何关系的换算则可以计算出M-Twin需要切割的砷化镓单晶长度。实验验证利用理论公式计算晶棒的M-Twin长度与实际M-Twin切除长度接近,证明该计算方法可以判断砷化镓线性孪晶的长度,可以减少因人为误判而造成的浪费。

In this paper,the growth regularity of linear twins in crystals was studied,and the length of GaAs single crystal to be cut by M-Twin could be calculated according to the conversion of geometric relations.The experimental results show that the M-Twin length calculated by the theoretical formula is close to the actual M-Twin excised length,which proves that the calculation method can judge the length of GaAs linear twin and reduce the waste caused by human misjudgment.