NPTH PTFE board processing flow
Cutting-drilling-dry film-inspection-etching-erosion inspection-solder mask-characters printing-spray tin-forming-testing-final inspection-packaging-shipment
PTH PTFE board processing flow
Cutting-drilling-hole treatment (plasma treatment or sodium naphthalene activation treatment)-copper immersion-board electricity-dry film-inspection-diagram electricity-etching-corrosion inspection-solder mask-character printing-spray tin-forming-test-final Inspection-packaging-shipment