Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Laser marking on white solder mask.

Views: 1006

#75282

Laser marking on white solder mask. | 27 January, 2016

Trying to find a laser marking machine. Thing is that most of my pcbs have white solder mask, so the when trying to read the 2D code is difficult due to the lack of contrast. Any idea? a different technology?

regards

reply »

#75323

Laser marking on white solder mask. | 4 February, 2016

Hi Luis A white mask typically helps in the marking process since you are not reliant upon the PCB layers to create the contrast. Laser marking is really an etching process, so if your laser is set properly (power and focus) the goal with mask is to etch enough away so show the PCB color (green, blue, red, etc) underneath to create your contrast. Readability is also about how much information you are placing into how small of an area. If you pack too much data into a small area (let's say 0.25" sq) the mark may not be readable since it is crunched. You can also call us for more details - PROMATIONUSA

reply »

#75327

Laser marking on white solder mask. | 4 February, 2016

I don't own a laser printer right now. I sent samples to some vendors and I couldn't read the codes. Have pictures of 2D codes on white solder mask?

Thanks

reply »

#75340

Laser marking on white solder mask. | 8 February, 2016

I would be happy to accept some samples and mark them for you. PROMATION USA, 9522 58th Place, Suite 100, Kenosha, WI 53144 - Let us know

reply »

Fluid Dispense Pump Integration

SMT in-printer dispensing