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Normal Surface finishing for PCB

Do you know how many surface finishing of PCB?Not all the PCB designer know all the surface finishing of PCB,and HAL/HASL,ENIG is normal PCB Surface finishing,but do you know OSP,ENIPIG?Here you will get the information of surface finishing we can do for your PCB:HAL,HASL,ENIG,IAg,ISn,ENEPIG,OSP,pls don't hesitate to contact us if you need more help about surface finishing of PCB.

Abbreviation HAL HAL(LF) ENIG IAg ISn ENEPIG OSP
Full Name Hot Air Leveling Lead Free HAL Electroless Nickel/Immersion Gold Immersion silver Immersion Sn electroless nickel electroless palladium immersion gold Organic Solderability Preservative

The normal thickness of Surface finishing of PCB!

Surface finishing is known by you now,after reading the information above,but do you know the thickness of gold for planting gold?You may know the boards is 0.8 mm or 1.6 mm,but don't know the thickness of gold,lots of electronic designer don't know this,but don't worry,here we will list the information for you,meanwhile have to let you know we can do different gold thickness for your boards,for example,we can do 0.025 um or 0.1 um for your PCBs.Belowing is the datasheet of PCB surface finishing thickness FYI.

This list is just normal thickness,pls contact us if you need special thickness.
Surface finishing Plating Thickness
HAL/Lead Free Sn:2-40um
ENIG nickel:3-5um,Gold:0.025-0.10um
ENEPIG Nickel:3--5 um,Palladium:0.05-0.1 um;Glod:0.03-0.05 um
IAg Silver: 0.1-0.3 um
ISn Sn: ≥1.0um
OSP Film:0.2-0.3 um
Goldfinger Nickel :3-5um,Gold:0.25um
Local hard gold plating Gold≤2.5um