Rogers RO4003C LoPro 2-layer 16.7mil ENEPIG Green Solder Mask Custom PCB

Rogers RO4003C LoPro 2-layer 16.7mil ENEPIG Green Solder Mask Custom PCB

This board is engineered for applications demanding superior signal integrity, minimal insertion loss, and rigorous thermal stability. Built on the foundation of Rogers RO4000 series material, this design represents a convergence of high-performance RF characteristics with the cost-efficiency of standard FR-4 fabrication processes.

The core of this product lies in its use of RO4003C LoPro laminates. Unlike standard high-frequency materials that often require specialized and costly via preparation (such as sodium etch), this laminate leverages proprietary Rogers technology that bonds a reverse-treated foil to a standard RO4003C dielectric. The result is a low-loss material system that offers exceptional high-frequency performance while remaining compatible with standard epoxy/glass (FR-4) fabrication workflows. This allows us to deliver a product with the electrical performance required for cutting-edge RF and high-speed digital applications without the typical premium associated with exotic material processing.

PCB Construction Details

The following table outlines the critical fabrication specifications, highlighting the use of premium materials and processes such as ENEPIG surface finish and strict electrical testing to ensure high reliability and corrosion resistance.

PCB Stackup

The stackup is a simple yet high-performance 2-layer rigid construction, utilizing a thick RO4003C LoPro substrate to achieve the target 0.5mm board thickness while maintaining mechanical stability and minimizing dielectric loss.

PCB Statistics

The bill of materials and netlist data reflect a moderately complex mixed-signal design.

Material Advantages: RO4003C LoPro

The selection of the RO4003C LoPro material is the defining factor that elevates this16.7mil RogersPCB from a standard circuit board to a high-performance component. This material system is a hydrocarbon ceramic laminate designed explicitly for superior high-frequency performance and cost-effective circuit fabrication.

Key Features

1)Dielectric Constant (Dk): 3.38±0.05 at 10 GHz/23°C, offering tight control for consistent impedance.

2)Dissipation Factor (Df): 0.0027 at 10 GHz/23°C, a critically low loss tangent that ensures minimal signal degradation.

3)Thermal Stability: High Tg > 280°C (TMA) and Td > 425°C, ensuring lead-free process compatibility and long-term reliability under high-temperature operation.

4)CTE Matching: The Z-axis CTE is 46 ppm/°C, while the X and Y axes are 11 and 14 ppm/°C, respectively. This is closely matched to copper, providing superior plated through-hole (PTH) reliability.

5)Thermal Conductivity: 0.64 W/mK, allowing for efficient heat dissipation from active components.

Performance Benefits

1)Lower Insertion Loss: The LoPro foil combined with the low-loss dielectric enables designs operating beyond 40 GHz with minimal signal attenuation.

2)Reduced Passive Inter-Modulation (PIM): Ideal for cellular base station antennas where low PIM is critical for signal clarity.

3)CAF Resistant: The material chemistry provides inherent resistance to Conductive Anodic Filament (CAF) formation, a common failure mechanism in dense, high-voltage boards.

Typical Applications

Given its low insertion loss and high thermal conductivity (0.64 W/mK), this RO4003C LoPro high frequency PCB is ideally suited for:

• Digital Applications: High-speed backplanes, servers, and high-speed routers.
• Wireless Infrastructure: Cellular base station antennas and power amplifiers.
• Satellite Communications: Low-Noise Block downconverters (LNBs) for direct broadcast satellites.
• RF Identification: High-performance RFID tags and readers.

 Fabrication and Quality Assurance

This Rogers RO4003C Low Profile PCB is fabricated to the IPC-Class-2 standard, ensuring a high level of reliability suitable for dedicated service electronic products. The ENEPIG surface finish provides a flat surface for reliable wire bonding (if needed) and offers exceptional corrosion resistance with a thick barrier layer (Nickel/Palladium) over the copper, making it ideal for long-term field deployment.

We utilize Gerber RS-274-X artwork files to ensure precise layer alignment and feature reproduction. Prior to shipment, every panel undergoes a 100% electrical test to guarantee continuity and isolation, validating the design intent of the two distinct nets and the 49 vias that interconnect them.

Conclusion

This 2-layer PCB, utilizing RO4003C LoPro material, is a meticulously engineered solution that balances the high-frequency demands of RF and high-speed digital applications with the manufacturing efficiencies of standard processes. Its unique combination of a low-loss dielectric, reverse-treated copper foil, and robust ENEPIG finish ensures superior signal integrity, excellent thermal management, and long-term reliability.This product represents a premier choice for engineers requiring a high-performance, cost-effective substrate for next-generation communication, networking, and RF systems.