Graphite film for flexible thermal management
NeoGraf Solutions in the US has launched a single layer flexible graphite film for thermal management in consumer electronics.
The NeoNxGen advanced flexible graphite heat spreaders have the high thermal conductivity of synthetic graphite yet are much thicker than traditional synthetic products. These next generation solutions are primarily targeted for high-end consumer electronics such as notebook computers, mobile phones, and tablets with flexible displays.
These consumer electronics devices require multiple layers of synthetic graphite to function properly, according to Jon Taylor, NeoGraf Product Manager. “These multiple layers are complicated to manufacture, expensive, and generate excessive scrap during the lamination process,” he said. The NeoNxGen flexible graphite spreads a large amount of heat with a single layer yet is thin enough to fit in the limited allowable space of modern consumer electronics.
NeoNxGen flexible graphite has the thermal conductivity of synthetic graphite (900W/m·K to 1100 W/m·K). It exhibits strong repeated flexibility characteristics, making it suitable for applications with foldable displays, or any other application where the product will be repeatedly flexed and bent.
NeoNxGen is designed to compete against multiple layers of synthetic graphite that have been laminated together into a stack. These multiple layers of synthetic graphite offer acceptable performance, but the manufacturing process is a disadvantage. NeoNxGen provides a high level of heat spreading using a single layer of graphite while the competition relies on the use of multiple layers of graphite to achieve the same level of heat spreading.
The NeoNxGen P-150 grade offers comparable performance at a 15% reduced cost (at 150μm thickness) versus competitive multilayer solutions. NeoNxGen graphite also delivers quality advantages including greater reliability (no adhesive layers), fewer splices (reduced downtime), and no additional inspection.
The product portfolio includes the standard N-Series and the economical P-Series, while custom grades based on thickness and performance are available upon request. Several other new grades are under development to meet specific market needs.
In addition to the initial use in laptop computers, NeoNxGen can be used in automotive electronics, battery thermal management, aerospace, military, and medical designs.
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