What this manufacturer makes
Lifeng Circuit Board manufactures PCBs in Panyu, Guangzhou. Its company profile dates the business to 1996 and describes single-sided, double-sided and multilayer production, with plating, exposure and electrical-testing processes. The capability page is unusually explicit about FR-4 acceptance, available thicknesses and the distinction between drill and finished-hole diameter. Its general 1–20-layer range is for through-hole boards. Separate HDI catalogue examples should be reviewed against their own build-up requirements rather than inferred from this conventional process sheet.
Official company source reviewed- Manufacturing focus
- FR-4 through-hole boards · Multilayer PCB manufacturing · Guangzhou production
- Published footprint
- Guangdong
FR-4 through-hole PCB — 1 to 20 layers
Manufacturer reportedLifeng Circuit Board lists fR-4 through-hole PCB — 1 to 20 layers in its official manufacturing documentation. Board thickness: 0.4–2.4 mm; listed discrete thicknesses. Standard panel: 550 × 420 mm. Oversize maximum: 500 × 1100 mm. Finished outer copper: 35, 70 or 105 µm. FR-4 through-hole range. The source recommends routing above 6 mil for easier manufacture; smaller stated minima require engineering review. Which stack-up, laminate grade, finished copper and acceptance criteria will be used for this board?
FR-4 through-hole range. The source recommends routing above 6 mil for easier manufacture; smaller stated minima require engineering review.
- Layer count
- 1–20 layers
- Line / space
- 0.1 / 0.1 mm
- Finished hole
- 0.2 mm
- Impedance
- —
| Board thickness | 0.4–2.4 mm; listed discrete thicknesses |
|---|---|
| Standard panel | 550 × 420 mm |
| Oversize maximum | 500 × 1100 mm |
| Finished outer copper | 35, 70 or 105 µm |
| Finished mechanical hole | 0.20–6.20 mm |
| Technical source | lf-pcb.com · Manufacturer specification |
Published limits may refer to different constructions. Confirm the complete stack-up with the factory. A dash means no value was published.
Sources & review record.
Reviewed 2026-09-21. Manufacturer pages can change; confirm the current revision when requesting a quotation.
- Lifeng Circuit Board — product and technical documentationhttp://www.lf-pcb.com/about-7.htmlSource checked 2026-09-21Official website
- Lifeng Circuit Board — company informationhttp://www.lf-pcb.com/about-2.htmlSource checked 2026-09-21Official website
- Lifeng Circuit Board — company informationhttp://www.lf-pcb.com/Source checked 2026-09-21Official website
- Lifeng Circuit Board — company informationhttp://www.lf-pcb.com/proshow-23-3-16-16-100-3.htmlSource checked 2026-09-21Official website
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.
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