What circuit boards do we do? (22) DiClad 880 High Frequency PCB

Introduction

Rogers DiClad 880 high frequency laminates are PTFE-based composites with woven fiberglass reinforcement. By using fewer plies of woven fiberglass and a higher ratio of PTFE content, DiClad 880 achieves lower dielectric constant and lower dissipation factors at a similar thickness to other laminates.

They are frequently used in filter, coupler and low noise amplifier applications, where Dk uniformity is critical and also used in power dividers and combiners, where low loss is important.

Features

One of the key features of the DiClad 880 laminates is their dielectric constant (Dk) of 2.17 or 2.20. This low Dk is complemented by a dissipation factor of 0.0009 at 10GHz, which is impressive for a PTFE-based composite material.

The woven fiberglass reinforcement in DiClad 880 offers enhanced dimensional stability compared to nonwoven fiberglass reinforced PTFE laminates with similar dielectric constants, exhibiting a coefficient of thermal expansion of 25 ppm/°C in the X direction and 34 ppm/°C in the Y direction.

DiClad 880 also has very low moisture absorption at 0.02% and meets UL 94-V0 flammability standards.

Additionally, it demonstrates excellent outgassing properties, with a Total Mass Loss of 0.01%, Collected Volatiles at 0.01%, and no Water Vapor Recovery.

On the other hand, when choosing materials, we also need to consider the uncertainties associated with its high TCDK of -160 ppm/°C and low thermal conductivity of 0.25 W/MK..

PCB Capability

Let’s explore our PCB manufacturing capabilities on DiClad 880 materials.

Layer Count: Whether you require single-sided, double-sided, multi-layer, or hybrid PCBs, we have you covered.

Copper Weight: We offer copper weights of 1 oz (35 µm) and 2 oz (70 µm) to ensure optimal performance for your applications.

Dielectric Thickness: Choose from dielectric thicknesses of 20 mil (0.508 mm), 30 mil (0.762 mm), or 60 mil (1.524 mm) to suit your design requirements.

The maximum PCB size that can be accommodated is 400 mm x 500 mm.

We provide a variety of solder mask colors, including green, black, blue, yellow, and red, allowing for customization and aesthetic appeal.

Surface finish options include immersion gold (ENIG), HASL, immersion silver, immersion tin, OSP, ENEPIG, bare copper, and pure gold plating, providing flexibility to meet your specific needs.

Applications

DiClad 880 PCB is well-suited for a variety of high-frequency circuit applications due to its excellent electrical properties and performance. In addition to the applications we mentioned at the beginning, it is also used in Military Radar Feed Networks, Commercial Phased Array Networks, Low Loss Base Station Antennas, and Digital Radio Antennas etc.