NeoNxGen™ Thermal Management Solutions

eGraf® NeoNxGen™ thermal management solution is a single-layer flexible graphite that provides the most desired features of a multi-layer synthetic graphite. It is a high-performance, cost-effective graphite heat spreader that achieves higher thermal conductance than synthetic graphite, natural graphite, and metallic solutions. The product has superior repeated flexibility for demanding applications such as foldable screens in notebooks, tablets, and mobile phones.

NeoNxGen thermal management solutions are a family of products that have been designed to eliminate the cost, complexity, and reliability concerns of multi-layered synthetic graphite solutions. NeoNxGen is a continuous roll of flexible graphite that can be easily laminated with plastics and adhesive tapes. The graphite can also be die-cut to a desired shape for easy “peel and stick” application.

Typically, NeoNxGen flexible graphite is used in the following applications:

• Cooling a hot component
• Spreading heat to eliminate a hot spot
• Shielding a temperature-sensitive component from a hot component
• Reducing a temperature gradient across the surface of a device

NeoNxGen flexible graphite sheets are designed to serve markets with demanding thermal challenges such as high-end consumer electronics (notebook computers, mobile phones, and tablets), transportation, energy storage, medical, and aerospace.

As devices have become more powerful, one layer of synthetic graphite often does not spread enough heat to meet thermal specifications. Yet, there may not be enough thickness available in the device for natural graphite to be used.

The standard approach to this problem has been to laminate two or more synthetic graphite layers together using a 5µm adhesive film. This approach will work thermally but often results in yield loss and wasted material due to the nature of the lamination process.

Challenges presented by the multi-layer approach to heat spreading require a new, single-layer solution that is thicker than traditional synthetic graphite products yet offers the same high thermal conductivity. NeoGraf’s NeoNxGen is such a solution.

• High-performance N-series and economical P-series are standard products
• Thermal conductivities up to 1,100W/m·K
• The current thickness range is 80 µm to 270 µm. Customization (thickness, performance) may be available upon request
• Additional grades are in development

• Single-layer solution: eliminates costs of lamination step(s), adhesive tapes, and multiple quality inspections
• High performance and lightweight: 30 percent lighter and 4-5 times higher thermal conductivity than Aluminum
• Current thicknesses between 80µm and 270µm, with thermal conductivities between 900 and 1100W/m·K
• No material losses due to roll splices and misalignment
• No quality concerns due to bubbles, wrinkles, delamination, and contamination between layers
• Easier handling and forming to complex shapes while maintaining flexibility
• Anisotropy: Low Z-directional thermal conductivity enables exceptionally large thermal activation areas
• Unaffected by extremes in temperatures

NeoGraf’s global team of application engineers specialize in developing and manufacturing high-quality flexible natural and synthetic graphite material solutions for today’s advanced devices. Regardless of your product design phase (concept, prototyping, or mass production), we offer technical answers and thermal modeling support to some of your most challenging problems with a fast response time.

eGraf® thermal management products, solutions and processes have earned the following proprietary rights