Process Flow Chart for 4L (OSP) PCBs
Publisher：Lucy Yuen Release time：2008-11-18
Cutting--->Inner-layer--->Lamination--->Drilling--->PTH--->Panel Plating--->Out-layer D/F--->Pattern Plating--->O/L Etching--->Solder Mask--->Silkscreen--->Routing--->E-test--->FQC--->OSP--->FQA--->Packaging--->Shipping
