dfr for plating process fp-3500 series
introduction
ft-3500 series exhibits good conformation, excellent tenting ability and high adhesion, suitable for plating.
■ high resolution & adhesion
■ scum free and low sludge
■ excellent tenting and suitable for plating
characteristics
| property | unit | fp-3550 |
| thickness | μm | 47±2.0 |
| exposure energy (sst=23/41st) | mj/cm2 | 60 |
| resolution (sst=23/41st) | μm | 55 |
| adhesion (sst=23/41st) | μm | ≤40 |
| minimum developing time | s | 28 |
| stripping time (3%naoh, 50 ℃) | s | 53 |
| tenting ability | 6 mm hole | ok |
