Ayman Helweh
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 Bendable Circuits Opening the door for a generation of flexible electronic devices, the world’s first “completely integrated, extremely bendable circuits” were developed and demonstrated by a research team led by John Rogers of the University of Illinois at Urbana-Champaign. The flexible stretchy silicon circuits could be used to build advanced brain implants, health monitors or smart clothing. Roger’s team is developing stretchable electronics that lie on the surface of the brain to monitor patients suffering from epilepsy. Another possible application they are considering is to incorporate sensors and electronics into surgical gloves to provide the surgeon with additional information during an operation.  The circuits are composed of nanoribbons of single crystalline silicon. They're made using transfer printing techniques similar to those already used by the silicon industry, but modified to yield ultrathin circuit sheets with a total thickness of about 1.5 micrometers - 50 times thinner than a human hair. These ultrathin circuit sheets are then bonded to a prestretched piece of rubber. Allowing the rubber to snap back to its original size makes the circuit sheet buckle like an accordion's bellows. These compressed circuits can then be bent or stretched with no ill-effects.
(rsc.org)References: rsc.org, news.bbc 1 Comment: on Stretchy Electronics |
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