CVD – Chemical Vapour Deposition -

CVD facilitates the production of high purity ceramics mainly for the semiconductor industry.

Based on its high purity and chemical stability at high temperatures, PBN and PG are ideal candidates to manufacture “III-V-compounds”.

From Fulmer Research Ltd. to Sintec to CVT.
CVD- products had the evolution to the best.
CVD - high purity ceramic for high standard applications.

Manufacturing process of CVD The basic raw materials are high purity gases such wa Boron Halides, Nitrogen, Ammonia or Hydrocarbon. These gases are reacted at high temperature and the products deposited onto machined graphite mandrels in a controlled atmosphere. Dependent upon the material selcted for the mandrel the deposit will either bond to the mandrel or be released to give a free standing shape. Parts are then machines to customer’s specification. After quality inspection the high purity parts are cleaned, sealed and packed for despatch.

PBN material properties

Thermal conductivity


Electrical resistivity

Typical physical properties of PBN:

Analaysis

... by Glow Discharge Mass Spectrometry (G.D.M.S.)
C (typically < 100 ppm), O, and In were not tested as these are used as to mount sample