Patent for License:

Formation of a Diamond Single Crystal    

For use as a high-temperature semiconductor device, ultraviolet laser diode or transparent protective single crystal film with exceptional hardness.


A diamond excellent in crystallinity is combined at a relatively lower temperature and a lower pressure. The acquired diamond or diamond thin film is useful as a high-functional material, for example - semiconductor device, ultraviolet laser diode or transparent single crystal film, which may be reformed to type-n or type-p by proper doping treatment. It can be used as a high-temperature device as the diamond is stable at a high temperature.

Primary Application of the Technology

Semiconductor device, ultraviolet laser diode, transparent single crystal film

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 117: Single-Crystal, Oriented-Crystal, And Epitaxy Growth Processes; Non-Coating Apparatus Therefor

Processes consisting of the single or repeated unit operation of forming a single-crystal of any type of material, including inorganic or organic; such processes combined with perfecting operations; and apparatus for conducting non-coating processes of this class.

Subclass 108: Using an energy beam or field, a particle beam or field, or a plasma (e.g., MBE)
Subclass 8: Of amorphous precursor

Class 423: Chemistry Of Inorganic Compounds

This class provides for what is generally termed the field of inorganic chemistry. It includes inorganic compounds, nonmetallic elements and processes of producing the same involving a chemical reaction. The products are generally in a relatively pure state but may be a mixture with no other utility than as a source material for an inorganic compound or element. This includes metal compound products useful in metallurgical processes of obtaining free metals.

Subclass 446: Diamond

European Patent Classes & Classifications Covered in this listing:


SINGLE-CRYSTAL-GROWTH . Single-crystal growth directly from the solid state .