FR4 PCB (Printed Circuit Boards) are widely recognized as a reliable and versatile substrate for electronic applications. Constructed from a flame retardant grade 4 (FR4) epoxy laminate material, these PCBs offer excellent electrical performance and mechanical stability.



Our FR4 PCBs are engineered with precision and expertise to meet the highest industry standards. The FR4 material provides excellent electrical insulation and high dielectric strength, ensuring reliable performance and signal integrity.



With their mechanical stability, our FR4 PCB maintain their dimensional integrity even under demanding conditions, making them suitable for a wide range of environments.

Advantage of FR4 PCB:

  1. Cost-Effective Solution: FR4 PCBs offer a cost-effective solution for electronic projects. The availability of FR4 material and well-established manufacturing processes contribute to their affordability. This also makes them a practical choice for both prototyping and mass production.
  2. Wide Application Range: FR4 PCBs find applications in various industries, including consumer electronics, telecommunications, automotive, industrial equipment, and more. Their versatility allows them to support different electronic components and meet the requirements of diverse applications.
  3. Thermal Resistance: FR4 PCBs have good thermal resistance properties, enabling efficient heat dissipation. This also makes them suitable for applications that generate heat, helping to prevent component damage caused by overheating.
  4. Reliable Performance: FR4 PCBs are known for their reliability and durability. They can also withstand mechanical stress, vibrations, and impacts. This further ensures a long-lasting performance even in demanding environments.
  5. Excellent Electrical Performance: FR4 PCBs provide good electrical insulation and high dielectric strength, ensuring reliable performance and signal integrity. They also offer low loss tangent and high resistance to electrical breakdown. This moreover makes them suitable for high-frequency applications and complex circuit designs.



Standard PCB Production Capability
Feature Capability
Quality Grade Standard IPC 2
Number of Layers 1 – 32layers
Order Quantity 1pcs – 10,000,000 pcs
Build Time 2days – 5weeks (Expedited Service)
Material FR-4 Standard Tg 150°C, FR4-High Tg 170°C, FR4-High-Tg 180°C, FR4-Halogen-free, FR4-Halogen-free & High-Tg
Board Size Min 6*6mm | Max 600*700mm
Board size tolerance ±0.1mm – ±0.3mm
Board Thickness 0.4mm – 3.2mm
Board Thickness Tolerance ±0.1mm – ±10%
Copper Weight 0.5oz – 6.0oz
Inner Layer Copper Weight 0.5oz – 2.0oz
Copper Thickness Tolerance +0μm +20μm
Min Tracing/Spacing 3mil/3mil
Solder Mask Sides As per the file
Solder Mask Color Green, White, Blue, Black, Red, Yellow
Silkscreen Sides As per the file
Silkscreen Color White, Blue, Black, Red, Yellow
Surface Finish HASL – Hot Air Solder Leveling
Lead Free HASL – RoHS
ENIG – Electroless Nickle/Immersion Gold – RoHS
ENEPIG – Electroless Nickel Electroless Palladium Immersion Gold – RoHS
Immersion Silver – RoHS
Immersion Tin – RoHS
OSP -Organic Solderability Preservatives – RoHS
Min Annular Ring 3mil
Min Drilling Hole Diameter 6mil, 4mil-laser drill
Min Width of Cutout (NPTH) 0.8mm
NPTH Hole Size Tolerance ±.002″ (±0.05mm)
Min Width of Slot Hole (PTH) 0.6mm
PTH Hole Size Tolerance ±.003″ (±0.08mm) – ±4mil
Surface/Hole Plating Thickness 20μm – 30μm
SM Tolerance (LPI) .003″ (0.075mm)
Aspect Ratio 1.10 (hole size: board thickness)
Test 10V – 250V, flying probe or testing fixture
Impedance tolerance ±5% – ±10%
SMD Pitch 0.2mm(8mil)
BGA Pitch 0.2mm(8mil)
Chamfer of Gold Fingers 20, 30, 45, 60
Other Techniques Gold fingers
Blind and Buried Holes
peelable solder mask
Edge plating
Carbon Mask
Kapton tape
Countersink/counterbore hole
Half-cut/Castellated hole
Press fit hole
Via tented/covered with resin
Via plugged/filled with resin
Via in pad
Electrical Test

PCB Drilling machine

PCB pattern plating line

PCB solder mask expose machine

PCB pattern expose machine

Strip film etching line

Solder mask screen silk print machine

Solder mask scrubbing line

PCB Flying Probe Test (FPT)

Fully automatic exposure machine

Why choose us?
competitive price

We have the most competitive price, our own factory, reasonable cost control, no hidden cost

No order threshold

Without any minimum order restrictions, provide high-performance PCBs in the shortest time

24-hour customer service

we provide 24-hour service and support, you will receive a reply to your question within 2 hours and a quotation within 24 hours.

Free DFM service

Before the official production of the PCB, we will conduct a free DFM review service and support free Allegro, Altium, Protel, PADS, OBD, Gerber and other formats.

1. Why use FR4 in PCB?
FR4 is the most used material in PCB construction. Circuit boards made of FR4 are strong, waterproof, and provide good insulation between copper layers, minimizing interference and supporting good signal integrity.
2. What material is FR4?
FR4 is a type of printed circuit board substrate made of flame retardant epoxy resin and glass cloth.
3. How thick is the FR4 PCB?
The standard thickness of the PCB is 1.57 mm. Some manufacturers will accommodate other specific thicknesses of 0.78mm or 2.36mm. When we say "thick" or "thin" FR4, we are usually comparing to the standard thickness of 1.57mm.
4. What does FR4 stand for?
FR4 is the standard defined by NEMA (National Electrical Manufacturers Association) for glass-reinforced epoxy laminates. FR stands for "Flame Retardant" and means that the material meets the UL94V-0 standard for the flammability of plastic materials.

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