Crystal growth and defects

Goal(s)

Knowledge of :

• The various types of single crystals used in advanced technologies
• All the industrial and laboratory crystal growth processes
• Defect generation due to the crystal growth process

TO SEE FICHE 2A-SIM 4PMMPHO9

Content(s)

• Bulk crystal growth techniques: Czochralski, floating zone, Verneuil, shaping, Bridgman, PVT …
• Growth kinetics : interface morphology, rough and facetted, classical kinetic laws for rough, facetted and unsaturable interfaces
• Chemical Segregation : Sheil-Gulliver, diffusive case, convecto-diffusive, radial segregation
• Crystal defects :
  • Point defects and precipitation
  • Dislocations in semiconductors
  • Dislocation generation and multiplication during crystal growth
  • Twinning
  • Grain and grain boundary nucleation and growth

Teaching methods : The fundamental concepts are presented in theoretical classes, problems are solved in TP classes, starting with simple examples and gradually introducing more complex examples based on real cases.
Language : Classes and assessment in English