C/C Composites for Semiconductor Silicon Crystal Growth
Semiconductor crystal growth, essential for producing materials like silicon and gallium arsenide, involves techniques such as Czochralski (CZ) growth. In this process, raw silicon is melted in a crucible at over 1,400°C, and a seed crystal is used to pull a single-crystal ingot. The ingot is sliced into silicon wafers, which are polished and processed to create electronic devices.
PC70 Carbon/Carbon (C/C) Composites in Crystal Growth
The extreme conditions of crystal growth require materials with high thermal stability, strength, and resistance to thermal shock. PC70 C/C composites, enhanced with short-fibre reinforcement, outperform traditional graphite in applications like crucibles, susceptors, and heat shields. These composites provide uniform heating, minimize contamination, and maintain dimensional stability due to their low thermal expansion coefficient. By using PC70 C/C composites, manufacturers can improve efficiency, reduce downtime, and produce higher-quality silicon wafers for advanced electronics.
C/C Composites Components
In semiconductor manufacturing, crucibles are critical components used to melt and contain silicon ingots during the crystal growth process, such as in the Czochralski method. Traditionally, graphite has been the material of choice for crucibles due to its high thermal conductivity and resistance to thermal shock. However, carbon/carbon composites, such as those enhanced with Neftec short-fibre PC70, offer significant advantages over graphite.
Carbon/carbon composites provide superior mechanical strength, reduced weight, and enhanced thermal stability. Neftec's PC70, with its short-fibre, further improves these properties by increasing wear resistance and structural integrity, even under extreme temperatures.
This makes carbon/carbon crucibles more durable and less prone to cracking or degradation over time, leading to longer service life and reduced downtime in semiconductor production. Additionally, carbon/carbon composites exhibit better chemical inertness, minimizing contamination risks during the silicon melting process, which is crucial for maintaining the purity of high-quality silicon ingots.
Semiconductor manufacturers can achieve higher efficiency, lower maintenance costs, and improved product quality when using PC70.
At Neftec, we tailor our Carbon/Carbon (C/C) components to meet your specific needs, offering end-to-end support in planning, design, and process optimization. With decades of expertise in high-performance materials, we ensure the highest standards of quality and precision.
Wafer Handling
- Wafer carriers (boats)
- Wafer paddles
- Epitaxy trays
High-Temperature Furnace Components
- Heating elements
- Insulation boards and liners
- Susceptors
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