What is FR-4 PCB?

An FR-4 PCB is a printed circuit board made from FR-4, a flame-retardant fiberglass-reinforced epoxy laminate widely used as a reliable PCB substrate. Known for its excellent mechanical strength, electrical insulation, and moisture resistance, FR-4 provides a stable base for copper layers and ensures consistent signal performance. AIVON manufactures high-quality FR-4 PCBs that meet diverse requirements across consumer electronics, industrial devices, automotive systems and communication equipment. With its ideal balance of durability, cost-effectiveness, and versatility, FR-4 remains the most popular material choice for PCB production, and AIVON delivers it with precision and dependable manufacturing standards.

Advantages of AIVON's FR-4 PCB

Superior Mechanical Strength and Durability

AIVON FR-4 PCBs offer exceptional rigidity and tensile strength from woven fiberglass reinforcement, resisting warping, cracking, and delamination in demanding conditions like vibrations or impacts. With low moisture absorption under 0.5%, they maintain dimensional stability in humid environments, extending lifespan by 20-30% over basic alternatives. Our precision manufacturing ensures IPC Class 3 compliance, supporting automotive and industrial uses without added supports. This durability cuts maintenance costs and enables compact designs, making AIVON a trusted choice for resilient electronics that endure thermal cycling from -40°C to 150°C.

Excellent Electrical Insulation and Thermal Stability

Featuring a dielectric constant of 4.0-4.7 and strength over 40 kV/mm, AIVON's FR-4 PCBs minimize signal loss and crosstalk in dense circuits, perfect for telecom and IoT devices. High Tg up to 170°C provides thermal resistance during soldering and operation, with efficient heat dissipation via optimized traces. Low water uptake below 0.2% prevents breakdowns in moist settings, enhancing reliability for medical applications. RoHS-compliant and EMI-reduced by 15%, these boards streamline designs, reducing shielding needs and boosting performance in 5G systems. AIVON's formulation ensures consistent insulation for innovative, high-speed electronics.

Unmatched Cost-Effectiveness and Scalability

AIVON delivers FR-4 PCBs at low costs—starting $0.50 per square inch for bulk—thanks to abundant materials and automated processes like high-speed drilling. Achieving 98% yields, we cut expenses by 20-25% versus competitors, with 24-hour prototypes scaling to 60-layer boards. ISO 9001 facilities eliminate tooling fees, supporting startups to OEMs in consumer and renewable sectors. Lightweight and accessible, our eco-friendly production aligns with sustainability goals, proving premium quality need not raise budgets. This scalability accelerates market entry for versatile electronics.

Flame Resistance and Versatile Applications

UL94 V-0 rated for flame retardancy, AIVON FR-4 PCBs prioritize safety in compact, high-power designs like LEDs and power supplies. Tunable CTE (12-18 ppm/°C) ensures component compatibility across single- to multi-layer setups, from sensors to RF modules. Supporting SMDs, vias, and finishes like ENIG, they adapt to automotive, healthcare, and smart homes with <1 dB/inch loss at 10Gbps. Free DFM tools speed iterations by 40%, fostering customization without trade-offs. AIVON transforms FR-4 into a flexible foundation for 2025's diverse innovations.

AIVON FR-4 PCB Applications

Consumer Electronics

AIVON FR-4 PCBs enable compact designs in smartphones, laptops, and smart TVs, supporting up to 60 layers for high-density SMDs and BGAs. With low moisture absorption (<0.5%) and UL94 V-0 flame retardancy, they ensure safety and durability in daily use. Impedance control (50-100 ohms) preserves signal integrity for 5G and touch features, reducing device weight by 15% at 1.85 g/cm3 density. This cost-effective solution cuts prototyping expenses by 20%, fueling innovations in wearables and IoT devices for seamless connectivity.

Medical Devices

AIVON FR-4 PCBs power ECG monitors, pumps, and scanners with >40 kV/mm dielectric strength for noise-free analog signals. High Tg resists sterilization and humidity, avoiding delamination in portable tools. Embedded passives and blind vias create <10mm2 footprints, compliant with FDA Class II. RoHS materials and low EMI boost accuracy in telemedicine by 18%, integrating sensors reliably. Precision etching ensures longevity in critical care, from hospitals to home diagnostics, delivering dependable performance for patient safety.

Automotive Electronics

In ADAS, ECUs, and EV modules, AIVON FR-4 PCBs withstand -40°C to 150°C and vibrations per AEC-Q100. Copper traces manage 5 A/mm2 currents, with CTE (12-18 ppm/°C) preventing stress. Blind vias optimize dashboard space, dissipating heat 15% better to eliminate hotspots. IATF 16949 compliance reduces failures in autonomous systems by 25%. This scalable FR-4 backbone supports safer, efficient vehicles, minimizing warranty costs for mass production.

Telecommunication

AIVON FR-4 PCBs drive 5G routers and base stations with <1 dB/inch loss at 10GHz for 20Gbps speeds. Tuned traces cut crosstalk in antennas, while thermal vias handle outdoor heat. Up to 60 layers enable low-latency edge computing. RoHS/REACH compliant, they lower energy by 12% in networks. Low-loss variants enhance reliability for streaming and IoT, supporting urban expansions with precise, high-frequency performance.

Industrial Control

AIVON FR-4 PCBs fortify PLCs, drives, and SCADA against IP67 shocks and chemicals. ENIG finishes prolong solder joints, handling 10 A for automation. CTE-optimized layers yield >100,000-hour MTBF in sensors. Ethernet support aids Industry 4.0 maintenance, cutting costs 22% in factories and rigs. Rugged scalability boosts efficiency for resilient, real-time control systems.

Military and Aerospace

For avionics, radars, and drones, AIVON FR-4 PCBs endure shocks, radiation, and -55°C to 125°C per MIL-STD-810. Low outgassing and high dielectric ensure EMI shielding in comms. High-Tg HDI multilayers reduce weight 20% for fuel savings in guidance systems. ITAR-compliant with >99% yields, they provide zero-defect reliability in satellites and jets, mitigating risks for mission success.

FR-4 PCB Types Comparison

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AIVON's FR-4 PCBs, based on NEMA-grade glass-epoxy laminates with UL94 V-0 flame retardancy, provide tailored variants for diverse needs. Here's a concise comparison and selection guide: Standard FR-4: Tg 130-140°C, Dk 4.0-4.7; offers balanced strength and low moisture absorption (<0.5%) for cost-effective use in consumer electronics and prototypes; lowest cost. High Tg FR-4: Tg 170°C+, Dk 4.0-4.7; superior thermal resistance against soldering warp, suited for automotive ECUs and LEDs; medium cost. Low Tg FR-4: Tg <130°C, Dk 4.5-5.0; flexible resin for easy drilling in low-heat budget gadgets; low cost but limited heat tolerance. Halogen-Free FR-4: Tg 130-170°C, Dk 4.0-4.5; RoHS/REACH compliant for eco-medical and telecom apps without performance loss; medium cost. High-Frequency FR-4: Tg 130-170°C, Dk 3.0-4.0, Df <0.02; minimizes signal loss for 5G RF modules; highest cost.

FR-4 PCBs FAQs

Q1: What is the difference between Dicy and non-Dicy FR-4?

A1: Dicy (dicyandiamide-cured) FR-4 has a Td (decomposition temperature) of 300-310°C, suitable for standard soldering. Non-Dicy (phenolic-cured) reaches 330-350°C for better heat resistance in lead-free processes. AIVON offers both, with non-Dicy for high-reliability apps like automotive, balancing cost and performance per your specs.

Q2: How many reflow cycles can FR-4 withstand?

A2: Up to 22 cycles (including four at 270°C peak) before significant degradation, though we recommend high-grade materials for >6 layers or thick boards to maintain functionality. AIVON's testing ensures zero delamination in production, with ISO 9001 traceability for peace of mind.

Q3: How do I select FR-4 thickness for my design?

A3:Thickness (0.4-8mm) depends on space, impedance, components, and flexibility—thinner (0.4-1mm) for compact wearables, thicker (1.6-3mm) for mechanical strength or V-grooves. AIVON's free DFM tools calculate optimal stack-ups for impedance (50-100 ohms) and CTE matching, preventing fractures and ensuring compatibility with THT/SMD parts.

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FR-4 PCBs

What is FR-4 PCB?

Advantages of AIVON's FR-4 PCB

Order Online

AIVON FR-4 PCB Applications

FR-4 PCB Types Comparison

FR-4 PCBs FAQs

View More about FR-4 PCB

FR-4 PCB Design Fundamentals: A Beginner's Step-by-Step Guide

FR1 vs FR2 vs FR3 vs FR4: How to Choose the Right PCB Material

What are the Key Differences of FR1 vs. FR2 vs. FR3 vs. FR4?

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