MITPCB Training SummaryIndexWhat is HDI How to fabricate HDI Current key technologyLaser drill Copper fill 0.5mm pitch BGA with 3/3 mil lineNew technologyDirect Laser Drill 3Steps HDI 0.4 mm pitch BGA with 2/2 mil lineDesign For Manufacturing Panelization ruleMTG ConfidentialWhat is HDI?HDI is short for “High Density Interconnections”. It means the PCBs that contain the high density build-up layers. Micro vias are the principal feature of HDI, along with thinner dielectrics and smaller traces and spaces.BGA/SMT Device Laser or Photo Microvia Hole in PadPTHStacked Microvias Mechanically Drilled Buried ViaFR-4Pre-pregHigh Density Build-up LayersSolder ResistGoldMTG ConfidentialDifferent type of HDI By steps1-HDINon stacked 2-HDIStacked But Non Copper fill……
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