RF & Microwave

Applications

RF Amplifiers

Aluminum nitride (AlN) enables next‑generation RF amplifiers that deliver higher power, higher frequencies, and greater reliability for demanding communications environments.

 

  • High thermal conductivity for power density
  • Wide bandgap for high‑frequency operation
  • Stable material under continuous RF stress

Telecom Infrastructure

AlN substrates support reliable, high‑performance RF components that keep networks fast, efficient, and scalable as data demands grow.

 

  • Efficient heat dissipation in dense systems
  • Consistent electrical performance at scale
  • Long‑term reliability for deployed infrastructure

Radar Systems for Defense

For advanced radar systems, AlN provides the material foundation required for precision, power, and durability in mission‑critical defense applications.

 

  • High power handling for radar performance
  • Robust operation in extreme environments
  • Enables high‑frequency radar architectures

Benefits

  • Enables high‑performance GaN‑on‑AlN HEMTs
  • Supports higher power and efficiency
  • Foundation for low‑gallium RF devices

Single-Crystal AlN Substrates

Premium aluminum nitride substrates engineered for demanding dual-use applications in optoelectronics, power electronics, and RF systems. Our substrates deliver unmatched thermal performance and electrical isolation.

Key Specifications:

  • Thermal Conductivity: ≥ 300 W/mK
  • Diameter Range: 50.8 mm – 100 mm
  • Surface Roughness: Sub-nm SSP or DSP
  • Shape/Flatness: Industry-accepted metrics
  • Miscut: 0.2 degrees (0-4 degrees custom)

RESOURCES

Documentation

Article

AlN Basics

Introduction to aluminum nitride substrates, properties, applications, and material fundamentals.
 

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Library

Technical Papers

Collection of technical resources, research papers, and supporting documentation related to AlN technology.
 

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PDF

CISM 100mm Substrate Datasheet

Technical datasheet for the 100 mm AlN substrate platform including specifications and performance data.
 

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Article

New Pilot Production Line for 100 mm Aluminum Nitride (AlN) Substrates at Crystal IS

Overview of Crystal IS pilot production capabilities and manufacturing expansion for 100 mm AlN substrates.
 

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Article

The Future of AlN Substrates: Powering Tomorrow’s Technologies

Discussion of emerging applications and future opportunities enabled by advanced aluminum nitride substrates.
 

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Technical Paper

Progress in Achieving Large Diameter Native AlN Substrates

Research covering developments and challenges in scaling large diameter native aluminum nitride substrates.
 

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