It sounds possible to me, but they are forgetting about a lot of stuff which would need to be added to make it a practical stand-alone device. Of course you need some kind of output stage to produce audible or otherwise sensible output. To make use of the tuning abilities, you need some type of interface that a person can manipulate. This sounds to me to be very similar to MEMS RF filters. One of the hot research areas in microelectromechanical systems is making ultra-high-Q mechanical filters in silicon using standard IC fab technology. The idea here is that one could eliminate many of the discrete components which are still needed with RF ICs (inductors, high Q capacitors, etc.) and make the system MUCH smaller. What they have made here is essentially a tiny filter which has some nonlinear properties which can be exploited for demodulation and which is directly coupled to the ambient EM field. I wonder how strong the signal has to be for it to be detectable? As much of a stretch as this would be for a practical receiver, I CAN see this being useful in biology, though. One of the things which biologists presently lack is a good way to measure what is going on inside living cells. If these devices could be made to transmit, they could perhaps be implanted in living cells and give simple telemetry such as temperature, electric potential, mechanical displacement, and chemical concentrations depending on how you construct it. Of course, a very sensitive external receiver would be needed to hear the output of these tiny telemetry transmitters, but it would still be amazing to have such data. Sean On Nov 2, 2007 1:58 PM, Vasile Surducan wrote: > I don't know why but I'm very skeptical about this storry: > > http://www.semiconductor.net/articleXML/LN694224100.html?industryid=47573&nid=3572 > > Vasile > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist