Most electronic engineers and manufacturers struggle to balance cost, flame resistance and multi-layer compatibility when selecting PCB substrates. FR4 PCB, the mainstream fiberglass epoxy circuit board material with UL94 V-0 flame retardant grade, solves such pain points perfectly. Fanway Technology, a 12-year professional EMS and PCB manufacturer, supplies customizable FR4 PCB covering single-sided to 108-layer boards, with complete ISO, IATF and medical certifications.
FR4 PCB refers to Flame Retardant Grade 4 printed circuit board, made of woven fiberglass cloth impregnated with flame-resistant epoxy resin, reaching UL94 V-0 self-extinguishing safety standard. Fanway FR4 PCB supports flexible customization on layers, thickness, copper weight and surface finish, compatible with HDI blind/buried via technology. Fanway integrates PCB design, fabrication, SMT assembly and full testing, delivering one-stop FR4 PCB solutions from prototype to mass production for all electronic segments.
| Parameter Item | Specific Standard Range |
| Maximum Layer Count | Up to 108 layers |
| Finished Board Thickness | 0.2mm – 10.0mm |
| Maximum Production Panel Size | 610mm * 1200mm |
| Copper Thickness Options | 0.5OZ ~ 12OZ |
| Minimum Line Width/Spacing | 2.5mil / 2.5mil |
| Smallest Finished Hole Size | 0.1mm |
| Maximum Aspect Ratio | 25:1 |
| Impedance Control Tolerance | ±10% |
| Available Surface Finishes | HASL(LF), ENIG, Immersion Tin/Silver, Gold Finger, OSP, Hard Gold Plating |
| Optional FR4 Material Grades | TG150, TG170, Halogen-Free FR4 |
| Matching High-Frequency Material | Rogers, Arlon, Taconic hybrid stacking |
UL94 V-0 certification ensures the board self-extinguishes after short-circuit or high temperature heating, lowering fire risk for automotive, medical and power electronics equipment.
Supports single/double/multi-layer, HDI blind via and thick-copper designs; compatible with 0.4mm thin to 3.2mm thick board thickness for diverse product miniaturization demands.
Low dielectric loss, excellent insulation and anti-humidity performance; hard fiberglass base resists bending and deformation during production and long-term equipment operation.
Standard, high-Tg and halogen-free FR4 variants are optional, matching lead-free soldering processes and environmental export compliance rules like RoHS & REACH.
Balanced raw material cost compared with Rogers or ceramic substrates; Fanway optimizes stacking design to use FR4 for common signal areas and high-frequency materials only for RF parts to cut overall project budget.
Fanway Technology owns over 12 years electronic manufacturing experience, full EMS industrial chain from PCB design to box assembly:
1. Complete Production Equipment
Equipped with automatic SMT lines, 3D X-Ray, AOI, SPI, wave soldering, BGA rework station and full functional testing machines for FR4 PCB inspection.
2. Strict Certification System
Possess ISO9001:2015, IATF16949 automotive standard, ISO13485 medical device certification, UL, RoHS, REACH and IPC manufacturing compliance.
3. Full-Cycle Quality Control
DFM free pre-production analysis, incoming material inspection, in-process AOI/X-Ray full scan, finished flying probe electrical test to reduce rework rate.
4. Flexible Delivery Schedule
72-hour rapid prototype service, 5–7 days bulk production lead time, small trial batches and large mass orders both acceptable.
5. Professional R&D & After-Sales Team
Engineers provide free layout optimization; 24/7 technical support, 3-year warranty for quality defective products.
• Automotive Electronics: Car control boards, new energy power modules, sensor PCBs (IATF certified FR4 boards)
• Medical Devices: Monitoring equipment, diagnostic instrument circuit boards (ISO13485 halogen-free FR4)
• Consumer Electronics: Laptops, LED lighting, household appliance control panels
• Industrial Automation: PLC, sensor, motor drive FR4 circuit boards
• Telecommunication & 5G: Base station auxiliary control boards, hybrid FR4-Rogers RF boards
• Renewable Energy: Solar controller, energy storage equipment PCBs
1. 6-Layer HDI FR4 PCB for LED photoelectric equipment, stable signal transmission for lighting drive modules
2. 8-Layer HDI FR4 Laptop Motherboard, high-Tg material adapting long-time notebook heat dissipation
3. 14-Layer FR4 + Rogers Hybrid PCB for communication RF equipment, balancing cost and high-frequency performance
4. Multi-Layer Blind Via FR4 Industrial Control Board, thick copper design for high-current power circuits
FR4 means Flame Retardant Grade 4, all Fanway FR4 PCB pass UL94 V-0 self-extinguishing flame resistance certification.
Yes, TG150/TG170 and halogen-free FR4 materials are available for medical and lead-free production projects.
Fanway supports 72-hour fast turnaround for small prototype batches, mass production takes 5–7 working days.
Yes, we offer one-stop solution including PCB fabrication, SMT/DIP welding, functional testing and box-build assembly.
UL, RoHS, REACH, ISO9001, IATF16949, ISO13485 test and compliance documents are all available.
Fanway manufactures hybrid stacked boards combining FR4 and Rogers to lower total material cost without losing RF performance.
FR4 PCB remains the most cost-effective, versatile substrate choice for nearly all electronic manufacturing projects, integrating flame safety, stable performance and customizable structure. Supported by Fanway’s 12-year PCB & EMS manufacturing experience, full automatic production lines and complete global export certifications, we can supply standard and customized FR4 PCB prototypes and mass orders for automotive, medical, telecom and industrial electronics manufacturers. If you need technical specification sheets, DFM free evaluation and bulk factory quotations, please feel free to contact us. Our professional PCB engineering team will design matched FR4 PCB stacking solutions according to your equipment working environment and electrical parameter requirements.
