PCB laser marking: a buyer's guide
Source selection, marking field, contrast, verification and MES integration — specifying a marking system for real traceability.
PCB laser marking applies permanent, high-contrast identifiers — 2D codes, serial numbers, logos — directly onto boards and components without ink or labels. Because the mark is created in the substrate rather than applied to it, it survives the wash, reflow and handling that defeat printed labels.
Match the source to the substrate
Test-mark your actual material before specifying. Contrast and legibility vary far more by substrate than by machine.
Fiber, CO2 and UV are not interchangeable — see the source comparison guide.
Specify verification, not just marking
A 2D code nobody can read is worse than no code. Grade the mark to a standard and verify it in-process.
Decide whether verification happens at the marker or downstream.
Connect it to something
Serial generation, database write and later lookup are what make marks into traceability.
Plan the MES integration alongside the hardware purchase, not after it.
Commonly asked
Does laser marking support IPC-1782 traceability?
Laser marking supplies the unique, permanent identifier those requirements assume. The marking system handles the identifier; the record itself lives in your MES, and we can advise on how the two connect.
Will marking damage the board?
Correctly specified, no — parameters are set so the mark is in the surface layer only. This is exactly what a test mark on your own substrate confirms.
Get the answer for your actual part
A guide can only take you so far. Send us the board, the fluid or the fastener and we will run it, film it, and come back with cycle times and a quote.
- Official QUICK & TechMan source
- US stock
- IPC-certified engineers
- TITAN Award 2025