RFID: Promise and Peril - Extreme Tech
A scannable badge that lets you into your building at work and an E-ZPass or similar device that lets you drive on toll roads without stopping to pay are examples of RFID technology. But as the technology gets smaller and less expensive, these applications are the tip of a huge iceberg. We're moving toward a world where many semiconductor devices can be printed instead of grown and etched in silicon by expensive equipment.