Clean and small, by design
Medical boards are squeezed into enclosures and pushed to fine pitch. A missed microvia or a smear in the hole wall is a yield loss on a high-value assembly — and a contamination risk in a diagnostic instrument.
The drilling set is judged on:
- Fine-via location on dense, fine-pitch layouts.
- Low contamination — minimal smear, easy to clean.
- Traceability for regulated instruments.
The medical-grade combination
- Lubricant / coated aluminum (green thermoset-coated) — our default coated first-entry that locates the fine vias in compact modules, with no hole-halo.
- UV Melamine 950 — low-smear, anti-warp backup that keeps the hole wall clean for reliable plating; our recommended default.
- Phenolic PHE — stable backup for the thicker diagnostic layers that must last; available on request, not our primary push.
- Aluminum entry 1100 H18 — clean top-side across the fine-pitch panel.
Grade matrix
| Board |
Grade |
Role |
Note |
| Entry |
Coated Al (green thermoset-coated) |
Fine vias |
Default · 220°C film, no halo |
| Backup |
UV Melamine 950 |
Fine-pitch |
Low smear · default |
| Backup |
Phenolic PHE |
Thick diagnostic layers |
Specialty, available on request |
| Entry |
1100 H18 |
All panels |
Clean top-side |
Services for regulated builds
Samples ship with SGS / REACH / UL declarations and full lot traceability. Low-smear grades ease post-drill cleaning. Engineering support covers material selection for fine-pitch and flex medical designs.
📖 Further reading: Lubricant Aluminum Entry Board for European Medical & HDI · Glossary: desmear definition →
FAQ
Q: Which set for a fine-pitch wearable?
A: Green thermoset-coated aluminum entry plus UV Melamine 950 — fine via location with low smear.
Q: Can the hole wall be kept clean for plating?
A: Yes. UV Melamine 950 is chosen for low resin smear, which simplifies desmear and plating.
Q: Is traceability supplied for regulated instruments?
A: Lot traceability and compliance declarations ship with every order.
