Rogers RO4000® series laminates are high-frequency circuit materials designed to deliver excellent electrical performance, mechanical stability, and cost-effectiveness. These laminates, including RO4003C™, RO4350B™, and RO4835™, are ideal for RF, microwave, and high-speed digital applications, offering compatibility with standard PCB manufacturing processes.

Product Overview

Property	RO4003C™	RO4350B™	RO4835™
Dielectric Constant (Dk)	3.38 ± 0.05	3.48 ± 0.05	3.48 ± 0.05
Dissipation Factor (Df)	0.0027 at 10 GHz	0.0037 at 10 GHz	0.0037 at 10 GHz
Thermal Conductivity (W/m·K)	0.71	0.62	0.66
Flammability	UL 94 V-0	UL 94 V-0	UL 94 V-0
Moisture Absorption	≤ 0.06%	≤ 0.06%	≤ 0.01%

Key Features

1. Stable Dielectric Properties:
   • Consistent Dk and Df values across a wide frequency range.
2. Thermal Reliability:
   • High glass transition temperature (Tg) ensures performance in thermal cycling environments.
3. Low Moisture Absorption:
   • Minimizes impact on electrical properties in high-humidity or moisture-prone applications.
4. Cost-Effective Fabrication:
   • Compatible with FR-4 processing techniques, reducing overall production costs.
5. Environmentally Robust:
   • Designed for demanding conditions, including automotive, aerospace, and outdoor telecommunications.

Applications

• Cellular base station antennas.
• Automotive radar and sensors (e.g., Advanced Driver Assistance Systems – ADAS).
• Satellite communication systems.
• High-speed digital interconnects.
• Power amplifiers and RF filters.

Fabrication Guidelines

Drilling

• Use carbide or diamond-coated drill bits for precise hole formation.
• Desmear using plasma or sodium etching for PTFE-enhanced variants.

Lamination

• Process with typical lamination temperatures between 375°F and 425°F (190°C–218°C).
• Apply pressures between 200–300 PSI (14–21 bar).

Plating and Etching

• Compatible with industry-standard etching and plating chemistries.
• Thin copper foils benefit from reinforced handling during fabrication.

Surface Finishes

• Supports immersion tin, immersion silver, ENIG, and OSP.

Environmental and Safety Compliance

1. Flammability: UL 94 V-0 rating.
2. RoHS and REACH Compliant: Meets global environmental standards.
3. Low Outgassing: Suitable for aerospace and space applications.

Storage and Handling

• Store laminates in a clean, dry environment with temperatures between 20–25°C (68–77°F).
• Use within one year of receipt for optimal performance.

Advantages of RO4835™

RO4835™ laminates offer enhanced oxidative stability, making them ideal for high-reliability applications requiring extended service life and improved environmental resistance