Transistors made of superthin silicon and applied to a flexible plastic substrate are fast enough to send and receive Wi-Fi signals. Credit: Zhenqiang Ma, University of Wisconsin-Madison

A Already, flexible-but-slow polymer electronics have made their way into technologies like roll-up digital displays. If superfast silicon electronics could also be made flex­ible, we might be able to do things like weave computing devices into clothing, or mold antennas around an airplane's fuselage, making for more precise radar. Now researchers at the University of ­Wisconsin-­Madison have made ultrathin silicon transistors that are 50 times as fast as their predecessors.

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