总结了氢对直拉硅(CZ)单晶中缺陷影响的研究进展,主要介绍了氢促进氧扩散、热施主和氧沉淀生成,以及高温氢气退火促进直拉硅片空洞型缺陷消除的机理,其中氢促进硅中氧的扩散被认为是氢对直拉硅中的缺陷产生影响的主要原因。
The research on the behavior of hydrogen in czochralski (CZ) silicon is reviewed. The mechanisms for the effect of hydrogen on the enhancement of oxygen diffusion and formation of thermal donors and oxygen precipitates are introduced. At the same time, the effect of hydrogen annealing on the reduction of void-type defects in CZ silicon is also summar,zed. It is believd that the enhancement of oxygen diffusion by hydrogen is the primary reason for the effect of hydrogen on the defects in CZ silicor