Electronics | Shrinking wireless | Economist.com

Electronics | Shrinking wireless | Economist.com: "The researchers intend to use the standard lithographic techniques employed in chipmaking to coat a semiconductor with microscopic magnets. These magnets will generate local magnetic fields that point in opposite directions at different points on the chip's surface. Electrons have a property called spin that is affected by magnetic fields, and the team hopes to use an effect called inverse electron-spin resonance to make electrons passing through the chip emit microwaves."