High-Purity Aluminum Nitride (AlN) powder is a high-performance ceramic material that plays a critical role in the modern electronics and semiconductor industries.

High purity (typically >99%, or even >99.99%) is essential to achieving its maximum performance, particularly to minimize oxygen content and metal impurities, which ensures extremely high thermal conductivity.

Below is a detailed breakdown of the main functions, core characteristics, and application areas of high-purity AlN powder:

I. Core Roles and Characteristics

The reason high-purity AlN powder is both expensive and irreplaceable lies in the following key physical and chemical properties:

1，Ultra-High Thermal Conductivity (Superior Heat Dissipation)

2，Excellent Electrical Insulation

3，Coefficient of Thermal Expansion (CTE) Matching Silicon

4，Other Characteristics

II. Major Application Fields

Due to its high cost, high-purity AlN powder is primarily used in high-end fields where performance requirements are stringent:

1. Electronic Packaging and Heat Dissipation Substrates (Primary Application)

2，Thermal Interface Materials (TIM)

3，Semiconductor Manufacturing Equipment Components

4，Third-Generation Semiconductors and Optoelectronics

5，Structural Ceramics and Metallurgy

Simply put, High-Purity Aluminum Nitride powder is the "Heat Dissipation Expert" of the electronics industry.