DPU Accelerator Card PCB Applications and Manufacturing Challenges
AI computing, cloud data centers, and high-performance computing platforms handle large volumes of network, storage, and security-related data traffic. DPUs (Data Processing Units) can handle tasks such as network transmission, storage access, security, and infrastructure management, offloading some infrastructure processing workloads from host CPUs. As DPU network bandwidth and host interface speeds increase, high-speed interconnections on accelerator cards place greater demands on PCB signal transmission performance, manufacturing precision, and long-term reliability. DPU accelerator cards typically integrate DPU chips, high-speed network interfaces, memory, power circuits, and other functional components, and connect to server systems through high-speed interfaces such as PCIe. Different products vary in network speeds, interface configurations, board architectures, and functional designs. PCB materials, stack-up structures, and interlayer interconn...