The same overheating problem that plagues our laptops also affects computer servers and data centers worldwide. As computer chips become more compact and powerful, heat management is becoming increasingly difficult. To address this issue, MIT researchers have developed a new method to study heat transfer in multilayered materials. They used X-rays and laser pulses to measure heat transfer, achieving highly accurate results. The researchers applied this technique to a promising material for transistors and flexible electronics, obtaining surprising results. They found that a single micron-scale defect can cause a fourfold reduction in heat transfer capability and uneven heat dissipation. This method can help researchers understand the causes of overheating in electronic devices and develop more efficient electronics. Blogger's Review: This new method can help us better understand heat transfer issues in electronic devices and develop more efficient electronics. This technology has the potential to play a significant role in various fields, including AI applications, wearables, and clean energy systems.