Pyrolytic Boron Nitride (PBN) is fabricated by the well-known Chemical Vapor Deposition (CVD) process in which the ammonia gas (NH3) and a gaseous boron halide such as boron trichloride(BCI3) are reacting in a high temperature CVD furnace to deposit PBN on an appropriate substrate such as Pyrolytic Graphite.

PBN is known as an excellent choice for high-temperature furnace and electrical components, semiconductor and microwave compounds crystals such as germanium(Ge), gallium arsenide(GaAs), and indium phosphate(InP) owing to its intrinsic purity, superior mechanical properties, and physico-chemical stability. PBN can withstand at 1800°C in vacuum and 2000°C in nitrigen, introducing it as a good choice for furnace components and melting vessels.

Typical Properties

Layered structure with hexagonal crystal lattice

Special properties perpendicular to the basal plane of the crystal

Superior structural and physico-chemical stability

Anisotropic structure

High thermal stability

Non-wetting

Non-toxic

Typical Applications

PBN crucibles for Vertical Gradient Freezing (VGF) process

PBN crucibles for Liquid encapsulation Czochralski (LEC) process

PBN crucibles for Molecular Beam Epitaxy (MBE) process

PBN crucibles for Organic Light Emitting Diode (OLED) process

PBN boats for compound semiconductors and alloys processing

PBN Metal-Organic CVD (MOCVD) insulation boards and MBE insulation rings

PBN electrical insulation bushings for high-temperature vacuum equipment

PBN traveling wave tube (TWT) with spiral structure

PBN Electrostatic Chuck

PBN-PG composite heaters