What this manufacturer makes
Shangjihong Circuit manufactures high-frequency and microwave printed circuit boards in Shenzhen. Its official manufacturing table distinguishes conventional multilayers from high-frequency mixed-material constructions and specifies inner- and outer-layer routing separately. The RF hybrid range is stated as 2–14 layers; the broader 30-layer ceiling is not applied to it here. The selected laminate grades, dielectric arrangement and RF acceptance criteria must be defined for each design, even where the factory lists the material family as supported.
Official company source reviewed- Manufacturing focus
- RF and microwave boards · Mixed-material multilayers · Quick-turn samples
- Published footprint
- Guangdong
- Listing and account
- Independently researched · factory account not claimed
RF hybrid PCB — 2 to 14 layers
Manufacturer reportedRF hybrid range only. General 30-layer, fine-line and drilling ceilings are not assumed to apply simultaneously to RF mixed-material boards.
- Layer count
- 2–14 layers
- Line / space
- Not disclosed for this profile
- Finished hole
- Not confirmed
- Impedance
- Not disclosed for this profile
| RF mixed-material range | 2–14 layers |
|---|---|
| Material families listed | PTFE, FR-4 and high-Tg laminates |
| General manufacturing method | Film imaging and LDI; process assignment to be confirmed |
| Technical source | sjhpcb.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.
- Shangjihong Circuit — product and technical documentationhttp://www.sjhpcb.com/manufacturing-capacitySource checked 2026-09-21Official website
- Shangjihong Circuit — company informationhttp://www.sjhpcb.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 laminate grade, copper profile, stack-up and RF measurement criteria are included in the quotation?
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.