काचेचा कार्बन क्रूसिबल

1. Material characteristics: non-graphitized glassy carbon, performance surpasses traditional materials in all aspects

Veteksemicon's glassy carbon crucible adopts advanced high-temperature sintering technology, and the polymer precursor is processed at 3000°C in an inert gas environment. It has both the density of glass and the high-temperature resistance of ceramics. The core advantages include:

✔ Ultra-high purity: the impurity content is less than 2ppm (such as metal impurities such as aluminum and iron), which meets the needs of semiconductor-grade materials.

✔ Extreme temperature resistance: It can be used stably up to 3000°C in vacuum or inert gas, and the strength increases with the increase of temperature (the strength at 2400°C is twice that of normal temperature).

✔ Zero porosity and anti-permeability: There are no open pores, and the gas permeability coefficient is as low as 10⁻⁹ cm²/s, which can avoid oxidation or contamination of molten metal.

✔ Excellent electrical and thermal conductivity: thermal conductivity 6.3 W/(m·K), resistivity 45μΩ·m, suitable for high-frequency induction heating process.

✔ Chemical corrosion resistance: resistant to strong acid, strong alkali and molten salt corrosion, no particle shedding, ensuring the cleanliness of semiconductor production.

2. Core application scenarios in semiconductor processing

Veteksemicon's glassy carbon crucible products cover the key links of the entire process in semiconductor manufacturing, generally including:

1) Single crystal silicon growth:

Insulating coating used for SiC crystal growth furnace, improving thermal field stability and reducing energy consumption by 20%.

High purity characteristics avoid silicon melt contamination and reduce lattice defects.

2) Ion implantation and etching process:

As an electrode and gas diffuser for plasma etching system, it ensures uniform discharge and process consistency.

Anti-ion bombardment characteristics extend equipment life.

3) Metallization and alloy smelting:

Ideal container for molten gold, palladium and titanium alloys, non-wetting surface reduces material loss.

Suitable for the purification and molding of highly active rare metals (such as gallium and indium).

Warning: Glass carbon crucibles cannot be used to melt chromium-cobalt-molybdenum alloys. Similarly, they cannot be used to melt any easily carbide, such as silicon or tungsten.

4) Advanced packaging and testing:

As a wafer transfer carrier (Dummy Wafer) and heat reflector, it ensures the stability of high-temperature processes.

3. Enterprise production strength: large-scale manufacturing and technological innovation

As China's leading supplier of glass carbon raw materials, Veteksemicon has the following core advantages:

✔ Full-process independent production

From raw material polymerization to high-temperature sintering, the entire process is controllable to ensure batch consistency.

Mass production capacity covers 5μm-level ultra-thin coatings to large crucibles (such as diameter 132mm, height 273mm specifications).

✔ Customized processing capabilities

Supports non-standard size customization (such as special-shaped crucibles, tubes, films), with a tolerance accuracy of ±0.2mm.

✔ Technology R&D reserves

Cooperate with scientific research institutions of the Chinese Academy of Sciences to develop nano glassy carbon (strength up to 3GPa) and expand the application of miniaturized semiconductor equipment.

Lay out emerging fields such as fuel cell bipolar plates and aerospace tail nozzles to promote cross-border innovation of materials.