Why Should You Choose DiClad 870 for Your High-Frequency and Low-Loss PCB Designs?

In the world of high-frequency electronics, the choice of printed circuit board material is critical to achieving optimal performance and reliability. Rogers DiClad 870 stands out as an exceptional high-frequency laminate, specifically engineered to meet the rigorous demands of advanced RF and microwave applications. This woven fiberglass-reinforced, PTFE-based composite delivers superior electrical properties, dimensional stability, and mechanical durability—making it an ideal substrate for high-speed digital and analog designs.

One of the key advantages of Rogers DiClad 870 is its unique construction. By utilizing a higher proportion of PTFE content and fewer plies of woven fiberglass, it achieves a lower dielectric constant and exceptionally low dissipation factor. What sets it apart from non-woven PTFE laminates is its enhanced dimensional stability, thanks to the strategic alignment of coated fiberglass plies in the same direction. This structural integrity ensures consistent performance even under varying operational conditions.

Key Features of DiClad 870 High Frequency Laminates

1) Stable Dielectric Constant: DiClad 870 maintains a consistent dielectric constant of 2.33 across a broad frequency spectrum—from 1 MHz all the way up to 10 GHz. This uniformity ensures reliable signal transmission with minimal phase distortion, making it suitable for high-speed and high-frequency designs.

2) Low Dissipation Factor: With an ultra-low dissipation factor of just 0.0013 at 10 GHz, these laminates significantly reduce signal loss, preserve energy efficiency, and enhance signal integrity—especially crucial in sensitive RF and microwave circuits.

3) Excellent Copper Adhesion: The laminate demonstrates outstanding copper peel strength, measuring 14 lbs/in when tested with 35μm foil per IPC TM-650 2.4.8. This strong bond between copper and substrate ensures long-term reliability and reduces the risk of delamination.

4) Minimal Moisture Absorption: DiClad 870’s moisture absorption rate is an impressively low 0.02%, allowing it to perform reliably in humid or challenging environments without compromising electrical properties.

5) High Flame Resistance: Complying with UL 94-V0 standards, this material offers excellent flammability resistance, contributing to safer end-products and compliance with international safety regulations.

PCB Manufacturing Capabilities with DiClad 870

We provide comprehensive manufacturing solutions for DiClad 870 PCBs, supporting a wide range of design requirements:

Layer Configurations: From single and double-sided boards to complex multi-layer and hybrid stack-ups, we accommodate diverse project needs with precision.

Dielectric Thickness Options: Choose from standard thicknesses including 31mil (0.787mm), 93mil (2.286mm), and 125mil (3.175mm) to meet specific impedance and mechanical requirements.

Copper Weights: Available in 1oz (35µm) and 2oz (70µm) options, providing flexibility in current carrying capacity and thermal management.

Panel Size: We support PCB dimensions up to 400mm x 500mm, ideal for both large single-board layouts and multi-design panelization.

Solder Mask Varieties: Customize the appearance of your boards with a selection of solder mask colors including Green, Black, Blue, Red, Yellow, and more.

Surface Finishes: Our offerings include Immersion Gold (ENIG), HASL, Immersion Silver, Immersion Tin, Bare Copper, OSP, ENEPIG, and Pure Gold, giving you the flexibility to choose based on solderability, durability, and application environment.

Typical Applications

DiClad 870 substrates are widely used in applications where consistent dielectric properties and low loss are essential. Common uses include:

• RF components such as filters, couplers, and low-noise amplifiers
• Power dividers and combiners in telecommunications infrastructure
• Base station antennas and signal distribution networks
• Radar feed networks, commercial phased array systems, and aerospace guidance systems
• Digital radio antennas and other high-frequency communication devices

Whether you are designing for aerospace, defense, telecom, or high-performance computing, DiClad 870high frequency PCB offers a reliable foundation for building circuits that demand tight impedance control, minimal signal loss, and unwavering performance.