VGF PBN Crucibles

VGF crystal growth technology is the mainstream method for manufacturing single crystal materials like GaAs, Inp, Ge, CdZnTe. By adopting VGF crystal growth process, high-quality single crystals with large diameters and low dislocation density can be produced. Semicorex VGF PBN crucibles, the indispensable components for VGF crystal growth, offer multiple crucial functions listed as below:

1. Semicorex VGF PBN crucibles are able to stably hold molten polycrystal raw materials during operation.

2. Semicorex VGF PBN crucibles are able to form suitable temperature gradients for the crystal growth.

3. Semicorex VGF PBN crucibles are able to prevent impurity contamination and maintain superior crystal quality.

Advantages of Semicorex VGF PBN crucibles

1. Ultra-high Cleanliness

Semicorex produces our VGF PBN crucibles by using high-purity PBN materials. These materials possess reliable chemical inertness and show no wetting effect and no chemical reaction with most semiconductor melts at high temperatures. Such high-standard material selection can minimize crystal defects resulting from impurity introduction and contamination from reactions, perfectly satisfying rigorous cleanliness demands of crystal growth.

2. Remarkable thermal conductivity

With high thermal conductivity and anisotropic properties, Semicorex VGF PBN crucibles can form appropriate temperature gradients and offer optimal growth conditions for progressive crystal solidification starting from the bottom upwards by cooperating with high-precision temperature control devices in the VGF process.

3. Excellent thermal performance

High-temperature resistance performance is crucially important for VGF PBN crucibles used for single-crystal growth. Semicorex VGF PBN crucibles can function steadily at 1800°C in a vacuum and 2000–2100°C in an inert atmosphere without cracking risks during long-term use.

Applications of Semicorex VGF PBN crucibles

1.  Semicorex VGF PBN crucibles are extensively applied for growth of III-V compounds such as GaAs and Inp.

2.  Semicorex VGF PBN crucibles are also suitable for the growth of other single-crystal materials, including Ge, CdZnTe, etc and the purification of some high-purity elements.