Application fields of PCB high frequency board:
1. Mobile communication products;
2. Power amplifier, low noise amplifier, etc.;
3. Passive components such as power splitters, couplers, duplexers, and filters;
4. In the fields of automobile anti-collision system, satellite system, radio system and other fields, the high frequency of electronic equipment is the development trend.
NPTH's PTFE plate processing flow
Cutting-drilling-dry film-inspection-etching-corrosion inspection-solder mask-character-spray tin-forming-testing-final inspection-packaging-shipping
PTH's PTFE plate processing flow
Cutting-drilling-hole treatment (plasma treatment or sodium naphthalene activation treatment)-copper sinking-plate electrical-dry film-inspection-graphic electrical-etching-etching inspection-solder mask-characters-spray tin-forming-testing-final Inspection - Packing - Shipment
Difficulties in high frequency board processing:
1. Immersion copper: the hole wall is not easy to copper
2. Control of image transfer, etching, line gap and sand hole of line width
3. Green oil process: control of green oil adhesion and green oil foaming
4. Strictly control the scratches on the board surface in each process.
