PCB Surface Finish Options at NextPCB: HASL, ENIG, OSP, ENEPIG and More

PCB Surface Finish Options for Prototypes and Production

The surface finish protects your copper pads and decides how well your board solders, how flat the pads are for fine-pitch parts, and how long boards can be stored. Choosing the wrong one can mean assembly defects or paying for more than your design needs.

NextPCB supports a full range of finishes, from HASL and ENIG to ENEPIG and hard gold. Four finishes are available in the instant standard PCB quote, and the rest are quoted through the advanced PCB quote. Find your finish below, then continue to the quote page to place your order.

At a Glance

• Finishes: HASL, lead-free HASL, ENIG, OSP, immersion silver, immersion tin, ENEPIG, hard gold and gold fingers
• Standard PCB quote: HASL, lead-free HASL, ENIG and OSP are selectable online for instant pricing
• Advanced PCB quote: immersion silver, immersion tin, ENEPIG, hard gold and gold fingers, reviewed by our engineers
• Published layer thickness: ENIG nickel 100–200 µin and gold 1–3 µin; electroplated nickel-gold 120–200 µin and 1–10 µin
• Fine-line capability: trace width down to 2 mil on advanced PCB orders
• Quality: IPC Class 2 by default with Class 3 available; IATF 16949, ISO 13485 and ISO 9001 certified

Surface Finishes We Support

This table shows every finish we offer, what it is best for, and which quote page to use. For capabilities not listed here, see our standard PCB capabilities and advanced PCB capabilities.

Get a standard PCB quote  |  Get an advanced PCB quote
Or inquire about standard finishes, or contact our advanced PCB team at vipsales@nextpcb.com.

The advanced PCB quote also covers HASL, lead-free HASL, ENIG and OSP, so you can combine any finish with advanced board types such as HDI, rigid-flex and high-frequency boards.

How to Choose Your Surface Finish

Start from what your board needs to do.

For a full comparison of how each finish performs, read our PCB surface finish guide or HASL vs ENIG.

Design Details That Affect Your Finish

Why Order from NextPCB

• Engineering support: upload your files to the advanced PCB quote and our engineers will review your design, including the finish you plan to use
• Consistent quality: 100% E-test and AOI, with IATF 16949, ISO 13485 and ISO 9001 certification. See our certificates
• Prototype to production: the same quote workflow and quality system from a single prototype to volume orders
• Assembly in one order: add PCB assembly at checkout so boards go straight to assembly with the finish you chose

FAQ

1. Which surface finishes can I order online?
The standard PCB quote offers HASL, lead-free HASL, ENIG and OSP. Immersion silver, immersion tin, ENEPIG, hard gold and gold fingers are available through the advanced PCB quote.

2. Is HASL RoHS-compliant?
Leaded HASL is not. For RoHS-compliant boards choose lead-free HASL, ENIG or another lead-free finish. The quote form lists “HASL” as the default option, so check the surface finish field before you order.

3. Which finish is best for fine-pitch BGA?
ENIG is the usual choice. It gives flat pads and supports a smaller minimum BGA pad (8 mil, against 10 mil for HASL). OSP also gives flat pads when boards are assembled promptly in a single pass.

4. How thick is the gold on ENIG?
NextPCB applies 1–3 µin of gold over 100–200 µin of nickel. Gold thickness affects price.

5. Which finish is best for RF and high-frequency boards?
Immersion silver and hard gold are our recommended finishes for low insertion loss. Keep silver boards sealed until assembly to prevent tarnishing.

6. Which finish should I use for gold fingers?
Hard gold, which is electroplated nickel-gold built for repeated insertion. Select it on the advanced PCB quote and specify the bevel angle your connector needs.

7. Can NextPCB help me choose a finish?
Yes. Upload your files to the advanced PCB quote for an engineering review, or check them yourself with the free online Gerber viewer.