氮化鋁精密陶瓷｜材料特性與應用產業

材料介紹

氮化鋁（Aluminum Nitride, AlN）是一種兼具高熱導率與電氣絕緣性的先進陶瓷材料。 其熱膨脹係數與矽相近，特別適合用於高功率、高頻率與高溫環境中的散熱與絕緣應用。

材料特性

• 超高熱導率：170～220 W/m·K
• 絕緣性佳：體積電阻 >10¹³ Ω·cm
• 與矽熱膨脹係數相容，封裝穩定性好
• 耐高溫（>1000°C）、化學穩定
• 低介電常數，適合高頻應用
• 高純度，低氣體釋出，適用真空製程

應用產業

• 半導體 / 光電：功率模組、雷射散熱基板、CVD 爐墊
• 電源 / 通訊： MOSFET/IGBT 陶瓷散熱片、RF 模組基座
• 生醫 / 自動化： 絕緣底板、熱分析元件、高潔淨隔熱層

Aluminum Nitride Ceramics｜Properties & Applications

Material Overview

Aluminum Nitride (AlN) is a premium ceramic known for its excellent thermal conductivity and electrical insulation. Its thermal expansion closely matches silicon, making it ideal for high-power, high-frequency, and high-temperature applications.

Key Properties

• Thermal conductivity: 170–220 W/m·K
• Electrical resistivity: >10¹³ Ω·cm
• CTE matches silicon – ideal for electronic packaging
• Withstands >1000°C, chemically stable
• Low dielectric constant and loss – great for RF circuits
• High purity, low outgassing – vacuum-ready

Industry Applications

• Semiconductor / Optoelectronics: power substrates, laser diode bases, CVD support plates
• Power / RF: MOSFET/IGBT ceramic heat spreaders, RF carriers, EMI shields
• Biomedical / Automation: insulating layers, thermal plates, vacuum isolators