Microfabrication: The Power of Heat

IME researchers have developed a compact energy-harvesting device that generates electricity from a temperature gradient. The proposed device is made with polysilicon and CMOS-compatible processes, making it cost-viable to fabricate in large volumes. With a 5K temperature difference, this device can generate 1.3 �W power output, enough to power a digital wrist watch indefinitely. The proposed device is ideal for wireless wearable health applications and implanted medical devices as they eradicate exorbitant battery replacement costs.