Personal Liberty Digest™ will be upgraded this weekend to reflect a dynamic new look and mobile-friendly viewing to enhance your experience! Plus, we'll be providing even more of the compelling content you've come to expect, delivered in a whole new way!

  Comments Subscribe to Personal Liberty News Feed Subscribe to Personal Liberty
 

Self-Healing Electronic Circuits Created

CHAMPAIGN, Ill., Dec. 20 (UPI) — U.S. researchers say they’ve develop self-healing electronic circuits that could extend the life of electronic devices and batteries.

As electronic devices evolve and circuits get ever smaller, manufacturers are packing as much density onto a chip as possible, but that raises reliability problems, such as failure stemming from fluctuating temperature cycles as the device operates, researchers said.

“In general there’s not much avenue for manual repair,” University of Illinois materials science professor Nancy Sottos said. “Sometimes you just can’t get to the inside. In a multilayer integrated circuit, there’s no opening it up. Normally you just replace the whole chip. It’s true for a battery too. You can’t pull a battery apart and try to find the source of the failure.”

The Illinois researchers had previously developed a system for self-healing polymer materials and adapted their technique for conductive systems.

They disperse tiny microcapsules on top of a gold line functioning as a circuit, and as a crack develops, the microcapsules break open and release the liquid metal contained inside.

The liquid metal fills in the gap in the circuit, restoring electrical flow.

A failure only interrupts current for mere microseconds, researchers said, before the liquid metal immediately fills the crack.

Nearly 90 percent of their samples healed to 99 percent of original conductivity even with a small amount of microcapsules, they said.

The self-healing system has the advantages of being localized and autonomous, Sottos said.

“In an aircraft, especially a defense-based aircraft, there are miles and miles of conductive wire,” she said. “You don’t often know where the break occurs. The autonomous part is nice — it knows where it broke, even if we don’t.”

UPI - United Press International, Inc.

Since 1907, United Press International (UPI) has been a leading provider of critical information to media outlets, businesses, governments and researchers worldwide.

Facebook Conversations

Join the Discussion:
View Comments to “Self-Healing Electronic Circuits Created”

Comment Policy: We encourage an open discussion with a wide range of viewpoints, even extreme ones, but we will not tolerate racism, profanity or slanderous comments toward the author(s) or comment participants. Make your case passionately, but civilly. Please don't stoop to name calling. We use filters for spam protection. If your comment does not appear, it is likely because it violates the above policy or contains links or language typical of spam. We reserve the right to remove comments at our discretion.

Is there news related to personal liberty happening in your area? Contact us at newstips@personalliberty.com

Bottom
close[X]

Sign Up For Personal Liberty Digest™!

PL Badge

Welcome to PersonalLiberty.com,
America's #1 Source for Libertarian News!

To join our group of freedom-loving individuals and to get alerts as well as late-breaking conservative news from Personal Liberty Digest™...

Privacy PolicyYou can opt out at any time. We protect your information like a mother hen. We will not sell or rent your email address to anyone for any reason.