This custom 2-layer rigid high-frequency PCB utilizes Rogers DiClad 527 fiberglass-reinforced PTFE substrate, engineered for high-precision, low-loss RF and microwave circuit applications. The board is constructed with immersion gold surface finishing, black silkscreen printing on the top layer, no bottom silkscreen, and a double-sided solder mask-free structure.
PCB Specification
| Parameter Item | Specification |
| Base Material | Rogers DiClad 527 high-frequency PTFE composite material |
| Layer Count | 2 layers rigid PCB |
| Board Dimensions | 49.63mm × 91.54mm (1 piece), dimensional tolerance: ±0.15mm |
| Minimum Trace / Space | 4 mils / 6 mils |
| Minimum Mechanical Hole Size | 0.3mm |
| Via Type | No blind vias adopted; only through-hole vias are used |
| Finished Board Thickness | 0.6mm |
| Outer Layer Finished Copper Weight | 1oz (1.4 mils) |
| Via Plating Thickness | 20μm |
| Surface Finish | Immersion Gold |
| Silkscreen Layer | Black silkscreen on top surface; no silkscreen on bottom surface |
| Solder Mask Layer | No top and bottom solder mask |
| Quality Test | 100% electrical testing before shipment |
PCB Layer Stack-up Structure
| Layer Name | Specification |
| Copper Layer 1 (Top Layer) | 35μm finished copper thickness |
| Dielectric Core | Rogers DiClad 527 high-frequency material, 0.508mm (20mil) thickness |
| Copper Layer 2 (Bottom Layer) | 35μm finished copper thickness |
Artwork & Quality Standards
Artwork Format: Manufacturing files are supplied in standard Gerber RS-274-X format, the universal industry specification that guarantees precise circuit patterning and full production compatibility.
Quality Standard: Each PCB meets IPC-Class-2 reliability standards, ensuring the performance and durability requirements for commercial and industrial electronic applications.
Supply Coverage: Global shipping and flexible delivery schedules are available to adapt to varied project timelines, supporting stable worldwide supply.
DiClad 527 Material Overview
Rogers DiClad 527 is a high-performance woven fiberglass-reinforced PTFE composite substrate specially developed for high-frequency PCB manufacturing. Featuring a precisely calibrated fiberglass-to-PTFE proportion, this material delivers a stable dielectric constant and superior dimensional stability when compared with traditional PTFE substrates. Its refined structural composition ensures accurate circuit registration and consistent electrical performance for advanced high-frequency circuit designs.
Core Material Performance Features
1. Stable Low-Loss Dielectric Properties
It maintains a stable dielectric constant ranging from 2.4 to 2.6 at both 1 MHz and 10 GHz, paired with an ultra-low dissipation factor of 0.0017 at 10 GHz, effectively minimizing high-frequency signal attenuation and phase distortion.
2. Reliable Thermal Dielectric Stability
The material exhibits a steady thermal coefficient of dielectric constant at -153 ppm/°C across a wide temperature range from -10°C to 140°C, sustaining stable dielectric performance under fluctuating thermal environments.
3. Excellent Structural Stability
Its well-matched coefficient of thermal expansion delivers balanced thermal expansion characteristics, which significantly reduces thermal stress and structural deformation during temperature cycling, ensuring outstanding long-term mechanical reliability.
4. Superior Environmental Adaptability
Boasting an ultra-low moisture absorption rate of 0.03%, the material generates negligible performance variation in high-humidity conditions, while its excellent chemical resistance enables reliable operation in harsh and complex working environments.
Typical Application Scenarios
Supported by ultra-low high-frequency loss, exceptional dimensional stability, uniform electrical characteristics and reliable environmental adaptability, DiClad 527 PCBs are extensively adopted in high-precision RF and microwave systems for various professional applications, as listed below:
-Radar feed networks and guidance systems
-Commercial phased array network equipment
-Low-loss base station antennas and digital radio antennas
-High-performance RF filters, couplers and LNA modules
