Student written Research Laboratory Guidebook 2023Nagaoka University of Technology

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Crystal Engineering Laboratory

Associate Professor / Hideo AIDA

Associate ProfessorHideo AIDA

profiles and activiities profiles and activiities at nagaoka university of technology
  • Research on next-generation optoelectronic single cristals
  • Can make diamonds !
  • COOL and STYLISH lab room


Associate Professor / Hideo AIDA
Assoc. Prof. Aida is always there for us students, consulting with them on their research as well as their personal problems. When we get stuck in our research, he always offers a solution so we can pursue what we want to do with confidence.

Research Content

In our laboratory, we are conducting research on crystal substrates for semiconductors. Currently, Si (Silicon) crystals are used for mainstream semiconductors. The performance of semiconductors is determined by the substrate material. SiC (Silicon Carbide) and GaN (Gallium Nitride), which are called next-generation single crystals, have better semiconductor performance than Si, but the substrate processing technology is still in its infancy. Therefore, our laboratory focuses on substrate processing technology and aims to contribute to the practical application of next-generation single crystals.
These researches are conducted by students who independently plan and conduct experiments. Students can be involved in joint research themes with many major companies. The latest equipment is being introduced one after another in our research facilities.

Optoelectronic single-crystal materials for the next generation (Bottom right: Brilliant-cut synthetic synthetic diamonds)

A Day in the Lab

In our laboratory, you will be provided with the necessary equipment for your experiments if you suggest it, so you can take on many challenges. The free-address student rooms are always neat and tidy. The professors pay a lot of attention to the environment of the students' living rooms. They listen to the students' opinions and make the facilities to make their laboratory life comfortable. Recently, various seating arrangements have been made, including sofas, counter tables, and dining tables, so that students can compile research materials, have lunch, and hold meetings in a comfortable environment. Therefore, although there are no core hours, it is a laboratory where you will always want to come every day !

Free-address student rooms with various seating options.

Thesis Subjects

  • (M)Development of Polishing Process of Single-Crystal Diamond Substrate for Subsequent Homoepitaxial Growth
  • (M)Processing of Hard-to-Fabricate Single-Crystalline Materials by Chemical Mechanical Polishing fused with Plasma Irradiation
  • (M)High Efficiency Flattening Process of Sapphire Substrates by Honeycomb Structured Grinding Wheel

The number of
PhD Graduates


Major employers of Graduates

  • Shin-Etsu Chemical Co., Ltd.
  • NSK Ltd.
  • The Japan Steel Works, Ltd.
  • Nippon Sheet Glass Company, Ltd
Writer : Junpei TOKUTAKE, Mechanical Engineering
(National Institure of Technology, Nagano College)