What is the lamination structure of HDI PCB boards?
HDI PCBs are a core technology for the miniaturization of modern electronic devices, and their laminate structure design directly determines product performance and reliability. From simple single-layer lamination (1+4+1) to complex double-layer lamination (1+1+4+1+1), key design considerations are provided to achieve the optimal balance between space constraints, signal integrity, and manufacturing costs.