Manufacturing context
Fujian Yongsheng Electronics lists multilayer PCB — official sample 15 in its official manufacturing documentation. Catalogue reference: Sample 15. Board construction: Multilayer printed circuit board. Supply scope: Bare-board fabrication; SMT offered separately. Official multilayer sample. Exact layer count, laminate, finished copper, routing and hole dimensions are not disclosed for this example and require drawing review. Which stack-up, laminate grade, finished copper and acceptance criteria will be used for this board?
Official company source reviewed- Manufacturing focus
- Printed circuit board fabrication · Multilayer board samples · SMT assembly
- Published footprint
- Fujian
- Listing and account
- Independently researched · factory account not claimed
Multilayer PCB — official sample 15
Manufacturer reportedOfficial multilayer sample. Exact layer count, laminate, finished copper, routing and hole dimensions are not disclosed for this example and require drawing review.
- Layer count
- Layer range not disclosed
- Line / space
- Not disclosed for this profile
- Finished hole
- Not confirmed
- Impedance
- Not disclosed for this profile
| Catalogue reference | Sample 15 |
|---|---|
| Board construction | Multilayer printed circuit board |
| Supply scope | Bare-board fabrication; SMT offered separately |
| Technical source | fjyspcb.com · Manufacturer specification |
These are separate published limits, not a promise that every combination is manufacturable. Unknown values are excluded from numerical filtering.
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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 2026-09-21. Manufacturer pages can change; confirm the current revision when requesting a quotation.
- Fujian Yongsheng Electronics — product and technical documentationhttp://www.fjyspcb.com/show.asp?id=129Source checked 2026-09-21Official website
- Fujian Yongsheng Electronics — company informationhttp://www.fjyspcb.com/Source checked 2026-09-21Official 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.
Which stack-up, laminate grade, finished copper and acceptance criteria will be used for this board?
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.
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