Thermal Utilization on Chip

Area of Science:

• Materials Science
• Energy Harvesting
• Semiconductor Physics

Background:

• Chip integration and miniaturization increase power consumption and heat generation.
• Conventional cooling systems consume over 50% of input energy, with no solution for on-chip thermal loss.
• Existing thermal management technologies are insufficient for addressing on-chip heat accumulation.

Purpose of the Study:

• To develop an integrated on-chip thermal recovery system.
• To simultaneously achieve efficient heat dissipation and energy harvesting.
• To enhance overall energy utilization efficiency in electronic components.

Main Methods:

• Utilized hydrovoltaic generator (HEG) technology, comprising electrodes and gel.
• Integrated the HEG system with a deep ultraviolet LED chip (236 nm) as a prototype.
• Tested the system on a commercial Intel G3220 CPU chip.

Main Results:

• Maintained prototype chip temperature below 40°C while converting waste heat to electrical energy.
• Achieved a 610.70% improvement in overall energy utilization efficiency for the LED chip.
• Reduced commercial CPU temperature from 93°C to below 60°C using four HEG units.

Conclusions:

• The proposed on-chip thermal recovery system effectively manages heat and harvests energy.
• Demonstrated significant improvements in energy utilization efficiency and chip performance.
• The technology shows general applicability for commercial CPUs, enhancing lifespan and computational performance.