WYD HDI & Heavy Copper UL (Dec 2025)

2025-05-19

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WEIYUANDA Updates

(UL Certification 2025)

HDI UL Approved:

With N+3+N, Max Finished Copper Thickness At 3oz (105um)

Heavy Copper UL Approval:

Inner & Outer Layers Max Finished Copper Thickness at 210um (6 OZ)

175um Based + 35um Plating.

Full Color Option

KSM 6189 ALL

UL Reference

UL Canada

UL USA

E327080

Available Laminates & Solder Mask:

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References

Zoe

Zoe Huang is a technical writer with a focus on PCB manufacturing and engineering. With a background in electronics and a deep interest in precision manufacturing, she translates complex concepts into accessible insights for engineers, designers, and procurement professionals. Zoe is passionate about making PCB knowledge practical and approachable, especially for those navigating real-world production challenges.

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