What this manufacturer makes
Topstar Circuit manufactures double-sided, multilayer and aluminum-base circuit boards in Dongguan. Its official company information dates the operation to 2011. The product catalogue includes a double-sided aluminum-base board, which is used for this listing. General homepage figures for conventional routing and thickness are not automatically applied to that metal-base example. The board specification should define the dielectric system, copper thickness, thermal path and isolation requirements before the manufacturer confirms the construction.
Official company source reviewed- Manufacturing focus
- Double-sided PCBs · Multilayer boards · Aluminum-base circuits
- Published footprint
- Guangdong
- Listing and account
- Independently researched · factory account not claimed
Double-sided aluminum-base PCB
Manufacturer reportedSpecific aluminum-base catalogue family. Conventional rigid-PCB headline limits are not assigned to this metal-base construction.
- Layer count
- 2 layers
- Line / space
- Not disclosed for this profile
- Finished hole
- Not confirmed
- Impedance
- Not disclosed for this profile
| Circuit layers | 2 |
|---|---|
| Base material family | Aluminum |
| Construction | Double-sided metal-base PCB |
| Technical source | topstarpcb.com.cn · 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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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.
- Topstar Circuit — product and technical documentationhttp://www.topstarpcb.com.cn/products_content-4800201.htmlSource checked 2026-09-21Official website
- Topstar Circuit — company informationhttp://www.topstarpcb.com.cn/company.htmlSource checked 2026-09-21Official website
- Topstar Circuit — company informationhttp://www.topstarpcb.com.cn/Source checked 2026-09-21Official website
- Topstar Circuit — company informationhttp://www.topstarpcb.com.cn/products-364292-0-0.htmlSource 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 metal base, dielectric grade, thermal conductivity and isolation requirements apply to this drawing?
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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Agree the manufacturing legal entity, confidentiality terms and approved site before sharing production files.