Semiconductor ceramic structural components refer to semiconductor equipment parts manufactured through precision machining using advanced ceramic materials such as alumina ceramics, aluminum nitride ceramics, and silicon carbide ceramics. The semiconductor industry is booming, and semiconductor ceramic components play a vital role in semiconductor equipment due to their unique properties.

What materials are used for semiconductor ceramic components?

1. Alumina Ceramics

Alumina ceramics serve as the primary material for manufacturing ceramic components. They exhibit outstanding mechanical properties, exceptionally high melting points and hardness, excellent corrosion resistance and chemical stability, high electrical resistivity, and superior electrical insulation. These characteristics make them ideal for producing polishing plates, vacuum suction cups, ceramic arms, and similar applications.

2. Yttrium Oxide Ceramics

Yttrium oxide ceramics feature a high melting point, excellent chemical and photochemical stability, low phonon energy, high thermal conductivity, and good light transmittance. In the semiconductor industry, they are often used in conjunction with aluminum oxide ceramics—for instance, by spraying yttrium oxide onto aluminum oxide ceramics to create ceramic windows.

3. Zirconia Ceramics

Zirconia ceramics feature high mechanical strength, resistance to high temperatures and acids/alkalis, and excellent electrical insulation properties. Based on zirconia content, they are categorized into precision-grade (over 99.9% purity, used for integrated circuit substrates and high-frequency insulating materials) and standard ceramics (used for various ceramic products).

4. Aluminum Nitride Ceramics

Aluminum nitride ceramics feature high thermal conductivity, a thermal expansion coefficient matching that of silicon, and low dielectric constant and dielectric loss. Due to their high melting point, exceptional hardness, excellent thermal conductivity, and strong insulation properties, they are primarily used in the manufacture of heat dissipation substrates, ceramic nozzles, and electrostatic chucks.

5. Silicon Nitride Ceramics

Silicon nitride ceramics feature a high melting point, exceptional hardness, chemical stability, low thermal expansion coefficient, high thermal conductivity, and strong thermal shock resistance. Below 1200°C, they exhibit outstanding impact resistance and strength, making them commonly used in the manufacture of ceramic substrates, load-bearing hooks, locating pins, and ceramic tubes.

6. Silicon Carbide Ceramics

Silicon carbide ceramics possess properties similar to diamond, being lightweight, extremely hard, and featuring exceptionally high strength. Their outstanding comprehensive performance, including wear resistance and corrosion resistance, makes them commonly used in components such as valve seats, sliding bearings, burners, nozzles, and heat exchangers.