Rogers RO4835™ laminates are part of the RO4000® series, designed specifically for high-frequency circuit applications. This material is noted for its excellent oxidation resistance, which is significantly better than typical thermoset microwave materials. This characteristic makes RO4835 ideal for applications requiring long-term reliability at elevated temperatures. The material's dielectric constant is tightly controlled, making it suitable for controlled impedance transmission lines, and it exhibits low dielectric loss, which is crucial for high-frequency applications .

RO4835 laminates can be processed using standard FR-4 fabrication techniques, which is a significant advantage as it does not require the specialized via preparation processes needed for PTFE-based materials. This feature simplifies the manufacturing process and can help reduce overall production costs. Additionally, RO4835 is compatible with lead-free soldering processes and meets UL 94V-0 flammability standards, making it suitable for a wide range of applications, including automotive radar and sensors, RF components, and power amplifiers .

When designing a PCB stackup using RO4835, consider the following guidelines:

• Utilize standard FR-4 processing techniques for cost-effective fabrication.
• Ensure that the material's superior thermal properties are matched with appropriate design considerations, especially for applications involving severe thermal cycles.
• Take advantage of the material's stable dielectric properties and low thermal expansion for high-reliability applications.
• Consider the environmental and operational requirements of your application, as RO4835 is suitable for high-frequency and high-temperature environments.

Overall, Rogers RO4835™ offers a robust solution for advanced electronic applications requiring high reliability and performance in challenging conditions. Its compatibility with standard processing techniques and excellent thermal and electrical properties make it a versatile choice for a variety of high-frequency applications .