Sci-Tech Products

Thermal Grade

Product Introduction

Based on the low coefficient of thermal expansion and the highest thermal conductivity at room temperature, the single crystal CVD diamond has two main thermal applications: 1) centralized heat dissipation of large areas, such as TR components, microwave power components and high power laser components; 2) point heat dissipation for thermal emission units, such as Gallium nitride(GaN) devices.

Product Line


3.0 x 3.0 x 0.5mm


12.0 x 12.0 x 0.5mm


12.0 x 12.0 x 3.0mm


20.0 x 20.0 x 1.0mm


20.0 x 20.0 x 2.0mm
Characteristic Description Related Applications
Thermal properties Thermal conductivity >1900 Wm-1K-1 Heat sink, heat exchanger,
heat sink (applied to high-power devices)
Coefficient of thermal expansion 193 K 0.4×10-6/K
293 K 0.8×10-6/K
400~1200 K (1.5-4.8)×10-6/K
Isobaric molar heat capacity 1800 K 24.7J/(mol·K)
3000 K 26.3J/(mol·K)