2nd IKZ Winter School


The Winter School will be held in English language.

Due to the current COVID-19 pandemic situation, the winter school will take place online.

Synergy of Experimental and Numerical Studies for Crystal Growth of Bulk Semiconductors

Session 1:
  • Requirements of semiconductor crystals from device and system community
  • Melt, solution, physical vapor transport (PVT), CVD methods
  • Heat and mass transfer in a furnace: convection, conduction, radiative heat transfer
  • Thermo-physical properties

Session 2:
  • Thermodynamics and atomic scale calculation
  • Solid-vapor and liquid-vapor, solid-solid, solid liquid equilibrium
  • Chemical reaction in a furnace

Session 3:
  • Artificial intelligence in crystal growth: numerical modeling
  • Steady and unsteady, 2D and 3D numerical calculation
  • Measurement technology: temperature, velocity, chemical species
  • 1D, 2D, 3D defects, impurity analysis
  • Nucleation in 2D and 3D: polytype control

Session 4:
  • State of the art in industry (particularly in Asia / Japan and China); semiconductor technology
  • New approach of semiconductor growth
  • Crystal growth of new devices
  • Free discussion

Students and PHDs          50 €
Academic Researchers   250 €
Industrial Employees       500 €
IKZ Employees                  free of charge    

The Winter School is directed to the employees of the Leibniz-Institut für Kristallzüchtung as well as to employees of other institutions, especially students and PhDs.

Please register by email at winter.schoolikz-berlin.de, specifying your institution and position (e.g. student bachelor/master/field of study, PhD, scientist, etc.).


Prof. Dr. Koichi Kakimoto
Phone:  +81 92 583 7741


Stefanie Grüber
Phone: +49 30 6392 3263
Fax: +49 30 6392 3003

Morning session: 10:00 a.m. - 12:00 p.m.

Afternoon session: 1:00 p.m. - 3:00 p.m.

Prof. Dr. Koichi Kakimoto from Kyushu University, Japan is one of the world's most renowned scientists in the field of crystal growth.

Koichi Kakimoto is currently a professor at three universities: Miyazaki University (since 2009), Tohoku University (since 2004), and Kyushu University (since 2003). In addition, he is director of the Research Institute of Applied Mechanics at Kyushu University and Chairman of the IOCG (International Organization for Crystal Growth). He is the author of over 350 scientific papers with H-factor 30.

He received his doctorate in engineering from the Faculty of Electrical Engineering at Tokyo University. Previously, he was a researcher at the NEC Fundamental Research Laboratories (1985-1996) and guest scientists at the Université Catholique de Louvain-la-Neuve, Belgium (1989-1990).

Prof. Kakimoto's research focuses on the application of magnetic fields in the growth of semiconductors, in particular Si and GaAs. His current research topics also include the development of a super high-efficiency solar cell, the development of a crystal growth process for high-purity silicon for power electronics, and the development of a low-temperature crystal growth process for a range of semiconductors.