CVD Diamond for Thermal Management Applications

Introduction

CVD diamond is a crystalline diamond grown by chemical vapor deposition (CVD) method. It is a promising application of diamond as a heat spreader material for various applications. CVD diamond provides the highest thermal conductivity of any material, which is approximately 2000 W/mK, which is five times higher than that of copper at room temperature. It is used in a variety of applications including ultra-wide band gap semiconductors, optical components, thermal spreaders, and wear-resistant coatings.

Applications

CVD diamond's exceptional thermal conductivity makes it a highly sought-after material for various applications, including:

• High-power integrated circuits (ICs): CVD diamond serves as a heat spreader, effectively dissipating heat away from the ICs, preventing overheating and ensuring optimal performance.

• Laser diodes: CVD diamond's high thermal conductivity enables efficient heat dissipation from laser diodes, improving their performance and reliability.

• GaN on Diamond (GOD): CVD diamond substrates are employed for the growth of GaN layers, resulting in improved thermal management and enhanced device performance in high-power electronics and optoelectronics.

• Heat spreaders for satellite-based electronic systems: CVD diamond's exceptional thermal conductivity makes it an ideal material for heat spreaders in satellite-based electronic systems, ensuring efficient heat dissipation and preventing overheating in harsh environments.

• Ultra-wide band gap semiconductors: CVD diamond finds application in ultra-wide band gap semiconductors due to its high thermal conductivity, enabling efficient heat dissipation and improved device performance.

• Optical components: CVD diamond is utilized in optical components, such as windows and lenses, owing to its high thermal conductivity, which minimizes thermal distortion and ensures optimal optical performance.

• Thermal spreaders: CVD diamond's high thermal conductivity makes it an effective thermal spreader in various electronic devices, efficiently dissipating heat and preventing overheating.

• Wear-resistant coatings: CVD diamond's extreme mechanical strength and high thermal conductivity make it suitable for wear-resistant coatings in demanding applications, such as cutting tools and aerospace components.

Features

• Exceptional Thermal Conductivity: CVD diamond exhibits outstanding thermal conductivity, which is five times higher than that of copper. This exceptional property makes it suitable for applications requiring efficient heat dissipation.

• Tailorable Thermal Conductivity: Our CVD diamond offers customizable thermal conductivity within the range of 800-2000 W/mK. This flexibility allows us to cater to the specific requirements of various applications.

• Diverse Applications: CVD diamond finds applications in high-power integrated circuits, laser diodes, GaN on Diamond (GOD), and heat spreaders for satellite-based electronic systems. Its versatility makes it a valuable material across different industries.

• High-Quality Grades: We offer various quality grades of CVD diamond to meet the diverse needs of our customers. These grades are categorized based on their thermal conductivity levels, ranging from Standard Medium to Excellent.

• Precise Specifications: Our CVD diamond is manufactured with strict adherence to specifications, ensuring consistent quality and performance. Key specifications include thermal conductivity levels, thickness tolerance, flatness, density, Young's modulus, and surface finishes.

• Customizable Sizes: We provide CVD diamond in a range of standard sizes, including double-sided polished options with a diameter of up to 150 mm. We also offer tailored sizes to accommodate specific project requirements.

Principle

CVD diamond offers exceptional thermal conductivity, up to 2000 W/mK, due to lattice vibrations as the primary heat conduction mechanism. This remarkable property makes it an ideal choice for various applications requiring efficient heat dissipation, such as high-power integrated circuits, laser diodes, and heat spreaders.

Advantages

• Unparalleled thermal conductivity: With a thermal conductivity five times higher than that of copper, CVD diamond is the ideal material for thermal management applications requiring optimum performance.
• Easily obtained high thermal conductivity: Due to the extraordinary high concentration of atomic hydrogen produced by the very high temperatures of the arc discharging, diamond films with high thermal conductivity can be easily obtained even at relatively high growth rate by DC Arc Plasma Jet.
• Tailorable thermal conductivity: The thermal conductivity of CVD diamond can be tailor ed within the range of 800-2000 W/mK, allowing it to be subdivided into different quality grades to meet the different needs of customers in different application fields.
• Wide range of applications: CVD diamond is used as mounts for high-power integrated circuits, laser diodes, GaN on Diamond (GOD), and heat spreaders for satellite-based electronic systems.
• Excellent thermal properties: With the highest known thermal conductivity, CVD diamond is the ideal material for thermal management applications requiring optimum performance.
• Invaluable in electronic and electrical applications: Considering 50 percent of electronic failures occur due to heat-related issues, CVD diamond is invaluable in all types of electronic and electrical applications, including telecommunications and microelectronic devices, where the build-up of heat can destroy delicate circuitry or severely impair performance.
• Key to enabling smaller, more powerful electronic devices: Properly dissipating heat is also key to enabling smaller, more powerful electronic devices.

Specifications

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