Rogers RO4835 substrates are hydrocarbon ceramic laminates, a type of antioxidative high frequency materials for applications demanding greater stability at elevated temperatures. It is significantly more resistant to oxidation than other hydrocarbon based materials. RO4835 laminates are designed to offer superior high frequency performance and low cost circuit fabrication. Moreover, RO4835 material provides nearly identical electrical and mechanical properties to RO4350B laminates, which customers have used successfully for many years.

Oxidation affects all thermoset laminate materials over time and temperature. In the long term, oxidation can lead to small increases in dielectric constant and dissipation factor of the circuit substrate.

Features and Benefits
1. Significantly improved oxidation resistance compared to typical thermoset microwave materials, which are designed for performance sensitive, high volume applications.
2. Low loss exhibits excellent electrical performance allowing application with higher operating frequencies, especially ideal for automotive applications.
3. Tight dielectric constant tolerance results in controlled impedance transmission lines
4. Lead-free process compatible results in no blistering or delamination
5. Low Z-axis expansion results in reliable plated through holes
6. Low in-plane expansion coefficient remains stable over an entire range of circuit processing temperatures
7. CAF resistant

Our PCB Capability (RO4835)

Typical Applications:
1. Automotive Radar and Sensors
2. Point-to point Microwave
3. Power Amplifiers
4. Phased - Array Radar
5. RF Components

Appendix: Typical Values of RO4835