What this manufacturer makes
Assunny manufactures printed circuit boards and flexible circuits and also provides SMT assembly. The company describes its origins in Shenzhen and its current manufacturing base in Jiujiang, Jiangxi. Its application list includes battery-protection boards, camera modules, wearable devices and vehicle battery-sensing harnesses. The flexible-circuit capability table is dated by year and separates volume production from small batches. This profile uses the latest displayed 2024 volume-production column; the factory should reconfirm those limits for a current order, especially for bending, coverlay registration and battery-harness dimensions.
Official company source reviewed- Manufacturing focus
- Flexible circuits · Battery-sensing interconnects · PCB and SMT services
- Published footprint
- Guangdong
- Listing and account
- Independently researched · factory account not claimed
Flexible PCB — published 2024 volume range
Manufacturer reportedDated 2024 volume-production column. RFPCB and small-batch ranges are separate. Ambiguously labelled copper/drill rows are excluded rather than repaired by inference.
- Layer count
- 2–8 layers
- Line / space
- Not disclosed for this profile
- Finished hole
- Not confirmed
- Impedance
- Not disclosed for this profile
| FPC volume layer range | 2–8 layers, 2024 column |
|---|---|
| Production panel dimensions | 500 × 1200 mm, 2024 volume column |
| Minimum double-sided thickness | 0.06 mm, 2024 volume column |
| Inner-layer line / space | 0.03 mm; not a universal outer-layer limit |
| Technical source | assun.net.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.
- Assunny Precision Circuits — product and technical documentationhttp://www.assun.net.cn/zzll.aspx?nid=3&typeid=50002Source checked 2026-09-21Official website
- Assunny Precision Circuits — company informationhttp://www.assun.net.cn/about.aspx?nid=1&typeid=1Source checked 2026-09-21Official website
- Assunny Precision Circuits — company informationhttp://www.assun.net.cn/Source checked 2026-09-21Official website
- Assunny Precision Circuits — company informationhttp://www.assun.net.cn/products.aspx?nid=3&typeid=50020Source 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 flex stack-up, stiffener arrangement and bend conditions are covered by the proposed manufacturing process?
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.