本文以低压、旋转、垂直喷淋结构的MOCVD反应器为对象,应用二维数学模型分析与计算,对反应器内部的质量输运过程进行了比较详细的研究与讨论.通过计算发现:在一定范围内,增加进气流量Q、降低操作压力P、设定适宜的生长温度t、保持合理的基座转速ω等,不仅可以非常有效地抑制热浮力效应,同时也使衬底表面流体的流动速度进一步增加,从而实现反应器内部的流场和温度场的均匀分布.研究的结果,不仅为高品质的外延生长提供了有效的解决方案,而且也为MOCVD反应器的优化设计提供了重要的参考依据.
参考文献
[1] | Fotiadis D I;Kremer A M;McKenna D R et al.Complex Flow Phenomena in Vertical MOCVD Reactor:Effects on Deposition Uniformity and Interface Abruptness[J].Journal of Crystal Growth,1987,85:154-164. |
[2] | Stock L;Richter W .Vertical Versus Horizontal Reactor:An Optical Study of the Gas Phase in a MOCVD Reactor[J].Journal of Crystal Growth,1986,77:144-150. |
[3] | Nami Z.;Erbil A. .Reactor design considerations for MOCVD growth of thin films[J].IEEE Transactions on Semiconductor Manufacturing: A Publication of the IEEE Components, Hybrids, and Manufacturing Technology Society, the IEEE Electron Devices Society, the IEEE Reliability Society, the IEEE Solid-State Circuits Council,1997(2):295-306. |
[4] | Dauelsberg M;Martin C;Protzmann H et al.Modeling and Process of Ⅲ-Nitride MOVPE at Near-atmospheric Pressure in Close Coupled Showerhead and Planetary Reactors[J].Journal of Crystal Growth,2007,298:418-424. |
[5] | B. Mitrovic;A. Gurary;L. Kadinski .On the flow stability in vertical rotating disc MOCVD reactors under a wide range of process parameters[J].Journal of Crystal Growth,2006(2):656-663. |
[6] | Jin X Z;Cong Z X;Liu M D .Numerical Simulation of Vortex Distribution in Horizontal MOCVD Reactor[J].Chinese Journal of Semiconductors,1993,14(01):21-27. |
[7] | Zhang J W;Gao H K;Zhang J K et al.Numerical Simulation of Return Flow in MOCVD Reactor[J].Chinese Journal of Semiconductors,1994,15(04):268-272. |
[8] | 左然,张红,刘祥林.径向三重流MOCVD反应器输运过程的数值模拟[J].半导体学报,2005(05):977-982. |
[9] | 刘奕,陈海昕,符松.GaN-MOCVD设备反应室流场的CFD数值仿真[J].半导体学报,2004(12):1639-1646. |
[10] | 郭文平,邵嘉平,罗毅,孙长征,郝智彪,韩彦军.MOCVD生长GaN材料的模拟[J].半导体学报,2005(04):735-739. |
[11] | 左然,张红,徐谦.径向流动MOCVD输运过程的数值模拟和反应器优化[J].人工晶体学报,2005(06):1011-1017. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%