Surface finishes
Surface finishes are protective coatings, which can be either metallic or organic. It is applied to assure solderability of the metal underneath. Most surface finishes require special conditions and special packaging to maintain a good solderability. It is advisable to store PCBs vacuum packed and at a stable temperature around 18-20 degrees Celsius. Azitech offers warehousing of PCBs to select customers, allowing for larger orders and better prices.
| Surface Finishes | EU | Asia |
|---|---|---|
| LF HASL | Yes | Yes |
| ENIG | Yes | Yes |
| Immersion tin | Yes | Yes |
| Immersion silver | Yes | Yes |
| OSP | Yes | Yes |
| ENEPIG | Yes | Yes |
| HASL(Sn-Pb) | Yes | Yes |
| Electrolytic Ni/Au | Yes | Yes |
| DIG | No | Yes |
| Electroless nickel - immersion palladium | No | No |
| Carbon ink | Yes | Yes |
| Blue mask* | Yes | Yes |