2-layer 5mil Rogers Diclad 870 laminate Immersion Silver No Solder Mask Custom PCB

2-layer 5mil Rogers Diclad 870 laminate Immersion Silver No Solder Mask Custom PCB

Product Overview

This 2-Layer Diclad 870 Immersion Silver PCB is a rigid, double-sided printed circuit board built on Rogers Diclad 870 laminate—a woven fiberglass-reinforced, PTFE-based composite renowned for its low dielectric constant (Dk) and dissipation factor. With a compact form factor, precise manufacturing tolerances, and a corrosion-resistant immersion silver surface finish, this 5mil Rogers PCB is engineered to deliver consistent performance across a wide frequency range, from 1 MHz to 10 GHz and beyond. It complies with IPC-Class-2 standards, undergoes 100% electrical testing prior to shipment, and is available for worldwide delivery, ensuring accessibility and reliability for global projects.

PCB Construction Details

The following table summarizes the key construction parameters of the 2-Layer Diclad 870 PCB, including substrate material, dimensions, trace/space specifications, and surface treatment, all of which are critical to its performance and manufacturability.

PCB Stackup

The 2-layer stackup of thisRogers 5milPCB is optimized for signal integrity and mechanical rigidity, with precise layer thicknesses that leverage the low Dk properties of theDiclad 870 substrate. The following table details the stackup composition from top to bottom.

PCB Statistics

The following table outlines key statistical data related to the Diclad 870 PCB’s component layout, pad configuration, and connectivity, providing insights into its design complexity and functional capabilities.

Diclad 870 Substrate Introduction

At the core of this PCB is Rogers DiClad 870, a high-performance laminate designed for high-frequency applications. Diclad 870 is a woven fiberglass-reinforced, PTFE-based composite that stands out among other laminates in the DiClad series due to its optimized composition: fewer plies of woven fiberglass and a higher ratio of PTFE content. This unique formulation delivers lower dielectric constants and dissipation factors at a similar thickness to otherDiClad laminates, making it ideal for applications where signal integrity and low insertion loss are critical. Unlike traditional FR-4 substrates, Diclad 870’s PTFE base ensures excellent thermal stability and minimal moisture absorption, further enhancing the PCB’s reliability in harsh or high-humidity environments.

Key Features

The Diclad 870 Immersion Silver PCB boasts a range of technical features that make it suitable for high-performance applications:

- Dielectric Constant (Dk): 2.33 at both 10 GHz and 1 MHz, measured at 50% relative humidity (RH)—a low and stable value that minimizes signal distortion.

- Dissipation Factor: 0.0013 at 10 GHz and 0.0009 at 1 MHz (50% RH), ensuring minimal signal loss even at high frequencies.

- Temperature Coefficient of Dielectric Constant (TcDK): -161 ppm/°C over a temperature range of -10°C to 140°C (measured at 10 GHz), providing stable electrical performance across varying operating temperatures.

- Arc Resistance: >180 seconds, offering enhanced electrical safety and resistance to arcing.

- Moisture Absorption: 0.02%—one of the lowest values among PTFE-based composites, reducing the risk of performance degradation due to moisture ingress.

- Coefficient of Thermal Expansion (CTE): 17 ppm/°C (X-axis), 29 ppm/°C (Y-axis), and 217 ppm/°C (Z-axis), balancing thermal stability with mechanical flexibility.

- Copper Peel Strength: 14 lbs/in at 288°C for 10 seconds, ensuring strong adhesion between the copper layers and the substrate for long-term reliability.

- Flammability: UL 94-V0 grade, meeting strict fire safety standards for electronic components.

Core Benefits

These features translate into tangible benefits for our customers, making this Diclad 870 high frequency PCB a reliable choice for critical applications:

- Lowest Moisture Absorption: Among PTFE-based composites, this minimizes performance degradation in humid environments, ensuring long-term reliability.

- Stable Dk Across Frequencies: The consistent dielectric constant over a wide frequency range (1 MHz to 10 GHz) makes it suitable for multi-frequency applications.

- Low Dk for Lower Insertion Loss: The low dielectric constant supports wider line widths, which reduces insertion loss and improves signal integrity—critical for high-frequency systems.

Typical Applications

Due to its exceptional electrical performance and durability, this 5mil Diclad 870 PCB is well-suited for a range of advanced applications, including:

- Radar Feed Networks

- Commercial Phased Array Networks

- Low Loss Base Station Antennas

- Guidance Systems

- Digital Radio Antennas

- Filters, Couplers, and Low-Noise Amplifiers (LNAs)

Additional Technical Specifications

To further support integration and manufacturing, the PCB includes the following additional details:

- Artwork Format: Gerber RS-274-X, the industry standard for PCB manufacturing files, ensuring compatibility with most PCB fabrication equipment.

- Accepted Standard: IPC-Class-2, ensuring compliance with industry quality requirements for non-critical applications where high reliability is still essential.

- Availability: Worldwide shipping, with flexible lead times to support global project timelines.

Conclusion

This 2-Layer Diclad 870 Immersion Silver PCB represents a balance of precision, performance, and reliability, tailored for high-frequency applications that demand low dielectric loss, stable signal integrity, and long-term durability. By leveraging Rogers’ premium Diclad 870 substrate and a high-quality immersion silver finish, this PCB delivers consistent performance across a wide frequency range, while its tight manufacturing tolerances and compliance with IPC standards ensure compatibility and reliability. Whether for radar systems, base station antennas, or low-noise amplifiers, this Diclad 870 high frequency PCB is engineered to meet the most demanding technical requirements, making it a trusted choice for engineers and manufacturers worldwide.