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 FinishesEUAsia
LF HASLYesYes
ENIGYesYes
Immersion tinYesYes
Immersion silverYesYes
OSPYesYes
ENEPIGYesYes
HASL(Sn-Pb)YesYes
Electrolytic Ni/AuYesYes
DIGNoYes
Electroless nickel - immersion palladiumNoNo
Carbon inkYesYes
Blue mask*YesYes
* Peelable mask