As AI robots upgrade towards "smarter, more agile, and more reliable", technological innovation in flexible circuit boards (FPCs) is unfolding around three core directions, continuously breaking through application boundaries.

The first direction is "high-frequency and high-speed". The demand for real-time data transmission in AI robots is increasing, especially for mobile robots equipped with multiple sensors, which need to simultaneously transmit multiple data such as images, LiDAR, and motion control. To this end, FPC is adopting a substrate with low dielectric constant (Dk ≤ 3.0) and differential signal design, enabling data transmission rates to exceed 10Gbps, meeting the real-time processing requirements of AI algorithms for massive data, and avoiding robot motion deviation caused by signal delay.

The second direction is' multifunctional integration '. Traditional FPCs only undertake signal transmission functions, while the new generation FPCs have begun to integrate additional functions such as sensing and heat dissipation. For example, printing temperature sensing ink on the surface of FPC can monitor the temperature changes of robot joints in real time. When the temperature exceeds the threshold, it can be promptly fed back to the AI control system to adjust the operating parameters and prevent component overheating and damage; Part of the FPC is also embedded with an ultra-thin copper foil heat dissipation layer, which quickly conducts the heat generated by the chip during operation to the outside, ensuring the stable operation of the AI module.

The third direction is' high reliability enhancement '. The long-term operation of AI robots in complex environments places higher demands on the durability of FPC. At present, the industry is improving the bending life of FPC by optimizing the layout of the bending area and using reinforced cover films. Some products can achieve more than 100000 180 ° bends while maintaining stable performance, far higher than the traditional FPC standard of 50000 bends. At the same time, the application of waterproof and anti-corrosion coatings also enables FPC to adapt to humid and dusty industrial scenarios, further expanding the application scope of AI robots.