Circuit process (3)
Stripping: After electroplating, the photosensitive film DFR is removed using a dedicated stripping agent of Amin-based chemicals for fine circuit formation First, the dry film swells and strips Stripped dry film fragments cannot withstand internal pressure and break apart Residue on the bottom is removed through additional stripping spray process Improper stripping that leaves DFR behind can in..
2023.10.30