What this manufacturer makes
HYJPCB, presented through the FineCircuit website, manufactures printed circuit boards in Hunan. The official catalogue includes metal-base, FR-4, CEM-1, single-sided and multilayer products. A single-sided CEM-1 switch-controller board is recorded here with its listed copper arrangement and finish options. The source contains conflicting board-thickness values between its heading and detail table, so no thickness is asserted. Buyers should request the approved fabrication drawing and laminate grade before treating the sample description as an order specification.
Official company source reviewed- Manufacturing focus
- Metal-base PCBs · CEM-1 and FR-4 boards · Single-sided circuits
- Published footprint
- Hunan
- Listing and account
- Independently researched · factory account not claimed
Single-sided CEM-1 switch-controller PCB
Manufacturer reportedCatalogue example. Heading says 2.0 mm and the detail table says 1.6 mm; thickness is therefore left unresolved.
- Layer count
- 1 layers
- Line / space
- Not disclosed for this profile
- Finished hole
- Not confirmed
- Impedance
- Not disclosed for this profile
| Layer construction | Single-sided |
|---|---|
| Base material | CEM-1 |
| Copper notation | 2/0 oz |
| Finish options listed | OSP or lead-free HASL |
| Solder mask / legend | Green / white |
| Technical source | metalpcbboard.com · Manufacturer specification |
These are separate published limits, not a promise that every combination is manufacturable. Unknown values are excluded from numerical filtering.
Open capability sheet →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 2026-09-21. Manufacturer pages can change; confirm the current revision when requesting a quotation.
- HYJPCB / FineCircuit — product and technical documentationhttps://www.metalpcbboard.com/pcb-11660471-2-0mm-cem-1-pcb-2-0-oz-switch-controller-circuit-board-manufacturera.htmlSource checked 2026-09-21Official website
- HYJPCB / FineCircuit — company informationhttps://www.metalpcbboard.com/aboutus.htmlSource checked 2026-09-21Official website
- HYJPCB / FineCircuit — company informationhttps://www.metalpcbboard.com/Source checked 2026-09-21Official website
- HYJPCB / FineCircuit — company informationhttps://www.metalpcbboard.com/pcb-assembly-capabilitiesSource 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.
Confirm the recipient
Agree the manufacturing legal entity, confidentiality terms and approved site before sharing production files.