Pyrolytic Boron Nitride (PBN) LEC Crucible

PBN Crucible

PBN crucible is the best containers for evaporating elements and compounds in MBE processes. Pyrolytic Boron Nitride (PBN) MBE crucible is produced by the CVD process to create its solid body and all the boron nitride crystals grow parallel to the surface on which the vapor is deposited. PBN products are extremely pure, as the purity of gas material is easier to be controlled. Typically, PBN products have a total impurity of <100ppm, which means the purity is no less than 99.99%. With such a high purity level, can be produced with 99.999% purity in high density，PBN products are ideal products for semiconductor industries & vacuum systems. With its high density and purity, PBN is becoming a widely used material in vacuum processes. The CVD process gives this pyrolytic boron nitride an almost perfect layered structure, which leads to anisotropic thermal conductivity, making it an ideal material to make crucibles for crystal growing. PBN LEC crucible is basically a simple cylinder shape crucible used in LEC (Liquid encapsulation czochralski) crystal growth facility.

Synonyms

h-BN; Elbor; hexagonal boron nitride; Boron mononitride; Nitridoborane; Nitriloborane

Pyrolytic Boron Nitride (PBN) LEC Crucible Specifications

Dimensions

Per your request or drawing

We can customized as required

Properties（Theoretical)）

Liquid Encapsulation Czochralsk (LEC) is a method of using the liquid covering agent to seal the melt and control the volatilization to realize crystal growth. LEC Crucible is applied as a vessel of crystal growth in LEC. Heeger Materials supplies Pyrolytic Boron Nitride (PBN) LEC Crucible at high-quality and competitive prices. Pyrolytic Boron Nitride (PBN) is a kind of advanced ceramic, that can be produced with 99.999% purity in high density. It is made by ammonia and Boron halide through Chemical Vapor deposition(CVD) process in high temperature and high vacuum conditions: NH3 +BX3=BN+3HX, it can be produced as PBN plates, and also can be produced as PBN final products directly like a crucible, boat, coating, etc.

Advantage

● Non-toxic and odorless;

● No react with most molten metals, semiconductors, and their compounds;

● -The oxidation resistance is good below 1000 °C;

● -Good thermal shock resistance –

● The use temperature is high, there is no sublimation point, and it is directly decomposed into B and N above 3000 °C

● High purity (99.999%)

● Low outgassing in high temperature

● Uniform thickness, Good consistency in heating

● Excellent thermal conductivity and shock resistance

● Easy cleaning and Reusability

● High density (> 2.12g/cm³)

● High interlayer strength, easy to clean and repeated use

● No react with acid, alkali, salt, and organic reagents at room temperature, and slightly corroded in molten salt or alkali solution, but it can resist corrosion of various acids at high temperature;

Pyrolytic Boron Nitride (PBN)  Applications

PBN ceramic materials have high purity, chemical inertness and excellent thermal conductivity, making PBN crucible an ideal container for elemental purification, crystal growth and semiconductor manufacturing, especially for the preparation of next-generation compound semiconductors such as GaAs, InP, etc.

At the same time, PBN products are also widely used in aviation, aerospace, electronics, chemical, special metallurgy, medical and other fields.

Pyrolytic Boron Nitride (PBN) Packing

Standard Packing:

Sealed bags in carton boxes. Special package is available on request.

As a ceramic material, boron nitride is quite fragile in a lot of cases. The Pyrolytic Boron Nitride (PBN) LEC crucibles are usually held in plastic bags by vacuum, and protected with heavy foam.

Our Pyrolytic Boron Nitride (PBN) are carefully handled to prevent damage during storage and transportation and to preserve the quality of our products in their original condition.

Chemical Identifiers