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PBN0922 Ultra-High Purity Pyrolytic Boron Nitride (PBN) Crucibles

Catalogue Number PBN0922
Dimensions 5ml~5L
Material PBN, Pyrolytic Boron Nitride
Standard LEC, MBE, VGF
Purity 99.99%
Form Crucible

Stanford Advanced Materials (SAM) manufactures premium PBN crucibles designed for the most demanding high-vacuum and high-temperature applications. Produced via Chemical Vapour Deposition (CVD), our crucibles offer exceptional purity, thermal stability, and chemical inertness, making them ideal for semiconductor crystal growth (LEC, VGF, MBE), MOCVD systems, and high-purity evaporation processes.

Related products: PBN/PG composite heating elements, Pyrolytic Boron Nitride (PBN) tubes, Boron Nitride plates/discs, Machined PBN products

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FAQ

How does PBN prevent contamination in sensitive processes like GaAs crystal growth?

PBN is specifically chosen for its ultra-high purity and chemical inertness. Our crucibles are produced via CVD, achieving purity >99.99% (typically <100 ppm total metallic impurities). They do not wet or react with most semiconductor melts (e.g., GaAs, InP, CdTe), ensuring minimal introduced contamination. For enhanced performance, Pyrolytic Graphite (PG) coating is available to further improve thermal uniformity and reduce adherence.

How should I handle PBN crucibles to ensure optimal service life?

PBN offers excellent thermal and chemical durability but is mechanically brittle.

  • Handling: Use clean, soft tools and gloves to avoid scratches or chips.

  • Operation: It performs best under high vacuum or inert atmosphere. Avoid rapid thermal shocks where possible.

  • Lifespan: Under correct conditions, a crucible can sustain multiple production runs. The exact lifespan depends on your specific process parameters (temperature, cycle count, materials used).

 

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