Thermal Field Regulation of 6-Inch VGF-Ge Single Crystals: CGSim Simulation and Experimental Study on Defect Suppression
The thermal field distribution in the vertical gradient freeze (VGF) process strongly influences the formation of dislocations, residual thermal stress, and twins in germanium (Ge) single crystals, and its effective control is essential for reducing defect density. In this study, a full-scale three-dimensional unsteady...