Manufacturing context
This capability sheet belongs to NextPCB. The conditions below apply to the named product or process; other product families require a separate review.
Official company source reviewed- Manufacturing focus
- Prototype to volume · Multilayer FR-4 · Assembly services
- Published footprint
- China; confirm production site and contracting entity
- Listing and account
- Independently researched · factory account not claimed
FR-4 multilayer — 1 oz outer copper
Manufacturer reportedOne-ounce outer-copper condition. Half-ounce inner-layer minima are not used as an outer-layer promise. Even controlled-impedance layer choices only.
- Layer count
- 4–20 layers
- Line / space
- 0.0762 / 0.0762 mm
- Finished hole
- Not confirmed
- Impedance
- ±10%
| Outer line / space | 3 / 3 mil at 1 oz |
|---|---|
| Controlled-impedance layers | 4, 6, 8 … 20 |
| Impedance tolerance | ±10% |
| Drill limit | 0.15 mm at thickness ≤1.2 mm; not a finished-hole claim |
| Technical source | nextpcb.com · Manufacturer specification |
These are separate published limits, not a promise that every combination is manufacturable. Unknown values are excluded from numerical filtering.
Know what has been checked.
The website review establishes the source of a statement. Independent UL ownership, equipment and material checks are tracked separately.
UL ownership
Not independently verifiedNo supporting record has been reviewed for this category.
Qualification request: Legal holder, manufacturing address and current UL recognition.
Equipment & in-house processing
Not independently verifiedNo supporting record has been reviewed for this category.
Qualification request: Machine inventory, location and evidence that the relevant process runs at the quoted site.
Material traceability
Not independently verifiedNo supporting record has been reviewed for this category.
Qualification request: Laminate grade, supplier documentation and traceable production-batch records.
Sources & review record.
Reviewed 2026-09-20. Manufacturer pages can change; confirm the current revision when requesting a quotation.
- Who Is NextPCB? PCB Manufacturing Expertsnextpcb.comOfficial website
- PCB Capabilities - NextPCBnextpcb.comOfficial website
Company names and images identify the source manufacturer. Listing does not imply endorsement, partnership, account participation or completion of a factory audit.
Make the first technical conversation useful.
Can the selected stack-up meet the impedance target with one-ounce outer copper, and what finished aperture follows plating?
Attach the manufacturing brief
Layer stack-up, finished dimensions, copper weights, laminate grade, quantity and delivery destination.
Define acceptance
Finished-hole tolerance, impedance targets, coupon requirements, surface finish and permitted process substitutions.
Confirm the recipient
Agree the manufacturing legal entity, confidentiality terms and approved site before sharing production files.