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Advanced HDI (High-Density Interconnect) extends beyond standard multi-layer PCB fabrication by incorporating laser-drilled micro-vias, sequential lamination build-up layers, and fine-line trace/space geometries below 4/4 mil. Where a standard throug
High-Density Interconnect (HDI) PCB technology uses laser-drilled micro-vias — typically 0.1–0.15 mm in diameter — to connect layers at far higher density than traditional through-hole vias. Originally developed for smartphone miniaturization, HDI is