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Nanotube heatsinks

02.02.2014

Scientists were able to increase the cooling efficiency of microprocessors by six times using carbon nanotube heat sinks.

To create strong covalent bonds between the cooled surface (experiments were carried out with aluminum, silicon, gold and copper) and grown nanotubes, physicists used an interlayer of organic molecules of aminopropyl trialkoxysilane and cysteamine.

Mechanical adhesion of heatsinks to metal surfaces proved to be sufficient for further growth of nanotubes to improve heat dissipation. Carbon nanotubes were chosen for cooling chips because their thermal conductivity is better than that of diamonds, the most thermally conductive natural mineral.

At the same time, the authors of the work noted that, despite the general improvement in heat transfer, most of the grown nanotubes were not fixed directly on the metal. The researchers plan to continue experiments to improve the contact density.

Heat dissipation plays a critical role in the operation of integrated circuits, as their processing power decreases with increasing temperature. The problem of overheating is further exacerbated by the growing density of transistors in modern microprocessors, which are cooled using both passive (metal heatsinks) and active (coolers and fluid systems) methods.

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SteelSeries Prime Mini and Prime Mini Wireless mice 23.09.2021

SteelSeries introduced the Prime Mini and Prime Mini Wireless mice. The new mice have found application technology Prestige OM.

Under this name lie the magneto-optical switches previously tested in Prime mice, from which the new devices differ in smaller size and weight. More specifically, the Prime Mini is 12% lighter and the Prime Mini Wireless is 9% more powerful than the base model.

The benefits of Prestige OM switches are five times longer "than the competition" and "lightning fast response time". Unlike mechanical switches, magneto-optical switches do not wear out during operation, that is, their characteristics remain unchanged.

The Prime Mini weighs 61g and uses the TrueMove Pro sensor.

The Prime Mini Wireless weighs 73g but is wireless. Without recharging, this mouse can work for more than 100 hours. It uses the TrueMove Air sensor.

The SteelSeries Prime Mini gaming mouse is priced at $60 and the Prime Mini Wireless is $130.

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