What this manufacturer makes
Sun & Lynn Circuits manufactures rigid PCBs, HDI boards, flexible circuits and rigid-flex constructions. Its website identifies manufacturing operations in Shenzhen, Ganzhou and Zhuhai and describes applications in communications, energy, industrial control, medical equipment and automotive electronics. The technical table distinguishes standard manufacturing from advanced processes. This profile uses the standard rigid-PCB column so that buyers can assess a defined process range before discussing a more demanding stack-up. Flexible-circuit and HDI limits are not mixed into that range.
Official company source reviewed- Manufacturing focus
- Multilayer rigid PCBs · HDI and rigid-flex · Flexible circuits
- Published footprint
- Guangdong
- Listing and account
- Independently researched · factory account not claimed
Rigid PCB — standard process range
Manufacturer reportedStandard rigid-PCB column only. Advanced 48-layer, 12 oz and differential ±6% entries are excluded. A 0.20 mm mechanical drill is not entered as a finished-hole limit.
- Layer count
- Up to 40 layers
- Line / space
- 0.075 / 0.075 mm
- Finished hole
- Not confirmed
- Impedance
- ±8%
| Maximum layer count | 40 layers, standard column |
|---|---|
| Maximum board thickness | 5.5 mm, standard column |
| Copper thickness | Up to 6 oz, standard column |
| Mechanical drill / pad | 0.20 / 0.40 mm; not a finished-hole guarantee |
| Technical source | slpcb.cn · 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.
- Sun & Lynn Circuits — product and technical documentationhttp://www.slpcb.cn/PCBcapability.htmlSource checked 2026-09-21Official website
- Sun & Lynn Circuits — company informationhttp://www.slpcb.cn/Source checked 2026-09-21Official website
- Sun & Lynn Circuits — company informationhttp://www.slpcb.cn/SlpcbNews-75.htmlSource checked 2026-09-21Official website
- Sun & Lynn Circuits — company informationhttp://www.slpcb.cn/PCBProductRight-371.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 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.