Faster and cheaper way to cool electronic devices developed

   Apr 10, 3:42 pm

Washington, Apr 10 (ANI): Researchers have come up with a more efficient and a less expensive way of cooling electronic devices - especially devices that generate a lot of heat, like lasers and power devices.

The technique, developed by a North Carolina State University researcher, uses a "heat spreader" made of a copper-graphene composite, which is attached to the electronic device using an indium-graphene interface film

"Both the copper-graphene and indium-graphene have higher thermal conductivity, allowing the device to cool efficiently," said Dr. Jag Kasichainula, an associate professor of materials science and engineering at NC State and author of a paper on the research.

Thermal conductivity is the rate at which a material conducts heat.

In fact, Kasichainula found that the copper-graphene film's thermal conductivity allows it to cool approximately 25 percent faster than pure copper, which is what most devices currently use.

Dissipating heat from electronic devices is important, because the devices become unreliable when they become too hot.

The paper also lays out the manufacturing process for creating the copper-graphene composite, using an electrochemical deposition process.

"The copper-graphene composite is also low-cost and easy to produce," Kasichainula said.

"Copper is expensive, so replacing some of the copper with graphene actually lowers the overall cost," Kasichainula added.

The paper has been published in Metallurgical and Materials Transactions B. (ANI)

Apple issues security warning for iCloud after attack by Chinese hackers Oct 22, 4:59 pm
Johannesburg, Oct 22 (ANI): Apple has reportedly issued a security warning for iCloud users amid reports of attacks by hackers on the online network.
Full Story
Microsoft Lumia to replace brand Nokia Oct 22, 4:26 pm
Washington, Oct 22 (ANI): Microsoft has reportedly declared that Microsoft Lumia is the new brand name that will replace Nokia as the software maker.
Full Story
Google revamps Gmail app, now supports Yahoo, Outlook Oct 21, 3:45 pm
Washington, Oct 21 (ANI): Google has revamped its Gmail app for Android, and it will now support Yahoo, and Outlook accounts.
Full Story
Apple rolls out iOS 8.1 with 'Apple Pay' Oct 21, 3:45 pm
Washington, Oct 21 (ANI): Apple has recently rolled out the new update to its Operating Software, iOS 8.1, which comes with Apple Pay - the service which lets users pay from their smartphone.
Full Story
Comments

LATEST STORIES
TOP VIDEO STORIES
PHOTO GALLERY