CVD Pyrolitic Boron Nitride
MBE
Crucibles - Bulk Growth Vessels
- Large Plates - Unique
Shapes
Morgan Advanced Ceramics Inc, CVD Materials' high
temperature chemical vapor deposition (CVD) process yields intrinsically pure pyrolytic boron nitride
(PBN).
Performance PBN is the ideal choice for
furnace, electrical, microwave, and semiconductor components.
Performance PBN's properties,
its intrinsic purity, superior mechanical strength, and
thermal stability make it a superb choice for high temperature furnace
and electrical components; microwave and semiconductor components; and
industry standardized crucibles for gallium arsenide crystal
production.
- Good thermal conductivity
- High insulation resistance
- High dielectric strength over wide temperature ranges.
- Extremely pure
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- Non-wetting
- Non-toxic
- Non-reactive to most other compounds
- Withstands high temperatures and rapid cooling
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Performance PBN will not react
with acids, alkalis, organic solvents, molten metals, or graphite.
Bulk impurity levels are less than 100 parts per million with metallic
impurities less than 10 parts per million. It withstands 1800° C in
vacuum and 2000° C in nitrogen, showing no melting point, making it
an excellent choice for furnace components and melting vessels.
Crucibles heated to 1200° C can be plunged into liquid nitrogen
without visible damage. PBN-coated graphite heating elements provide
extremely uniform temperature profiles for both compound and silicon
semiconductor manufacturing.
The anisotropic conductivity of Performance PBN improves process
performance for crystal growth, whether the growth method is Liquid
Encapsulated Czochralski (LEC), Vertical Gradient Freeze (VGF), or
Bridgman. The high purity and physical stability of this unique
material also make it the best choice for auxiliary effusion cell
hardware use.
Properties of Performance PBN
Physical
Thermal
Chemical / Electrical
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