Design of A Two-stage Heating Single Crystal Germanium Growth Furnace;
双段式加热锗单晶生长设备的结构设计
The distribution of impurity Ge in SiGe bulk single crystal which was grown by varying speed CZ was measured by using the SEM-EDS methods, and it was found that the Ge concentration varied from a lower value at head to a highter one at the tail of Si crystal which was doped Ge.
利用扫描电镜能谱分析法,对 CZ 法生长的掺锗浓度不同的硅锗单晶中锗浓度进行了测定,结果发现硅中锗的纵向分布是头部浓度较低,尾部锗浓度较高。
9mm Ge single crystal piece ,And has used A,B,the C three kind of choice point plans,Result show that B plan can test electronic resistivity and nonuniformity of Ge single crystal piece with the few test points,It reflected the real performance and reliability of the material,And it simplified the experimental procedure.
9mm的半导体锗单晶圆片的电阻率进行测定,并采用了A、B、C等三种选点方案,结果表明:方案B用少量的测试点就能测定和计算出锗单晶的电阻率和不均匀性,它不仅反映出材料的真实性和保证其可靠性,而且简化了试验程序。