Crucible Support Tray

In high-temperature semiconductor manufacturing, stability and precision are critical to ensuring consistent crystal quality. Semicorex Crucible Support Tray plays a vital yet often overlooked role in maintaining the integrity of the crystal growth process by providing a reliable foundation under extreme thermal and mechanical conditions.

The Crucible Support Tray, also known as a carbon/carbon (C/C) crucible holder, is specifically engineered to support quartz or graphite crucibles during the growth of single crystal silicon. Positioned at the base of the thermal field, this component must withstand prolonged exposure to high temperatures while maintaining structural integrity and dimensional stability. Its robust design ensures that the crucible remains securely positioned throughout the process, minimizing vibration, deformation, or misalignment that could negatively affect crystal quality.

Role of the C/C Support Tray

During the growth of monocrystalline silicon, temperatures often exceed 1400°C. Traditional graphite materials, while useful, often face challenges regarding lifespan and deformation under the heavy weight of molten silicon. Our C/C Composite Crucible Support Tray solves these pain points.

By utilizing a high-strength carbon fiber reinforced matrix, this tray offers a "near-zero" thermal expansion profile and exceptional load-bearing capacity. It serves as the interface between the crucible and the rotating shaft, maintaining a perfectly level plane to prevent melt turbulence and crystal defects.

Technical Specifications & Material Excellence

Density: ≥ 1.3 g/cm³

Flexural Strength: ≥ 110 MPa

Coefficient of Thermal Expansion (CTE): ≤ 1.0 × 10⁻⁶ /K

Compressive Strength:  ≥ 160 MPa