Manufacturing context
This capability sheet belongs to Tongling Onbole Circuits. The conditions below apply to the named product or process; other product families require a separate review.
Official company source reviewed- Manufacturing focus
- Automotive control PCB · Appliance controllers · Industrial control
- Published footprint
- 999 Xihu 1st Road, Tongling Economic Development Zone
- Listing and account
- Independently researched · factory account not claimed
Rigid PCB — 1 oz outer / ½ oz inner copper
Manufacturer reportedVisually transcribed from the official process-sheet image. Routing values use the 1 oz outer / ½ oz inner copper row. Hole wording is ambiguous, so finished-hole size remains unconfirmed. Impedance is specified differently above and below 100 Ω.
- Layer count
- 1–20 layers
- Line / space
- 0.0762 / 0.0762 mm
- Finished hole
- Not confirmed
- Impedance
- Not disclosed for this profile
| Published layer range | 1–20 layers |
|---|---|
| Line / space | 3 / 3 mil; 1 oz outer, ½ oz inner copper |
| Maximum finished size | 640 × 540 mm |
| Maximum thickness | 3.5 mm |
| Impedance condition | Above 100 Ω: ±10%; below 100 Ω: ±10 Ω |
| HDI | Not available in the reviewed process sheet |
| Technical source | onbole.com.cn · Manufacturer specification |
These are separate published limits, not a promise that every combination is manufacturable. Unknown values are excluded from numerical filtering.
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 verified- Reported UL file E488128
Number transcribed from the official process-sheet image. No independent holder or site match has been completed.
Manufacturer statement recorded
Qualification request: Legal holder, manufacturing address and current UL recognition.
Equipment & in-house processing
Not independently verified- AOI inspection
Listed as available in the official process sheet. Equipment ownership, site and current operation have not been independently checked.
Manufacturer statement recorded - Flying probe testing
Listed as available in the official process sheet. Equipment ownership, site and current operation have not been independently checked.
Manufacturer statement recorded
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 2026-09-20. Manufacturer pages can change; confirm the current revision when requesting a quotation.
- 铜陵安博电路板有限公司|安博电路板有限公司|安博电路板| 铜陵安博|安博|安徽铜陵安博电路板有限公司onbole.com.cnOfficial website
- 铜陵安博电路板有限公司|安博电路板有限公司|安博电路板| 铜陵安博|安博|安徽铜陵安博电路板有限公司 - 铜陵安博电路板有限公司onbole.com.cnOfficial website
- 铜陵安博电路板有限公司|安博电路板有限公司|安博电路板| 铜陵安博|安博|安徽铜陵安博电路板有限公司 - 铜陵安博电路板有限公司onbole.com.cnOfficial website
- Official process-sheet image26376952.s21i.faiusr.comOfficial 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.
Can this copper construction meet the design’s absolute impedance tolerance, and what finished-hole diameter and test coupon will be guaranteed?
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.