Next Generation of Stretchable PCB with Liquid Metal
The Future of Electronics RESHAPED 2025 USA
10-06-2025
Boston, USA
UMass Boston
1: The Challenge and the Approach : The increasing demand for flexible and wearable electronic devices necessitates the development of circuit boards capable of withstanding significant mechanical deformation. Traditional PCBs struggle to maintain conductivity and structural integrity under strain, limiting their applicability in dynamic environments. This presentation introduces a novel approach to stretchable PCBs utilizing liquid metals as conductive traces.
2: Key Features and Benefits: The core of this technology lies in the unique properties of liquid metals, which maintain electrical conductivity even under continuous stretching. These liquid metal traces are encapsulated within a flexible substrate, forming a robust and adaptable circuit structure. This approach offers significant advantages in terms of durability, stretchability and conformability compared to conventional rigid or flexible PCBs. The inherent fluidity of the conductive traces allows for dynamic reconfiguration of the circuit pathways, enabling new possibilities for adaptive electronics.
3: Potential Impact: This technology has the potential to revolutionize the design and fabrication of wearable electronics, biomedical devices, and soft robotics. The ability to create highly stretchable and conformable circuits opens up new avenues for integrating electronics seamlessly with the human body and other dynamic surfaces. Future research directions include developing advanced fabrication techniques for creating complex stretchable circuits and preparing for higher volume production. This technology promises to enable a new generation of electronic devices that are more robust, adaptable, and integrated with their environment.



