6-Layer Rogers RO4350B PCB | 1.6mm Thickness, ENIG Finish with Blind Vias Using in Automotive Radar and Sensors

RO4350B PCB: 6-Layer, 1.6mm Thickness, ENIG Finish with Blind Vias

(All PCBs are custom-manufactured. Reference images and parameters may vary based on your design requirements.)

Overview of RO4350B 6-Layer PCB

The RO4350B PCB is a high-performance 6-layer rigid PCB designed for RF, microwave, and high-frequency applications, featuring blind vias for efficient multilayer connectivity. With a finished thickness of 1.6mm and Electroless Nickel Immersion Gold (ENIG) surface finish, this PCB combines low dielectric loss, excellent dimensional stability, and cost-effective manufacturability.

The Rogers RO4350B laminates provide dielectric constant (Dk) control of 3.48 ± 0.05 at 10GHz, making it suitable for multi-layer board (MLB) constructions and high-power RF applications. This PCB is widely used in cellular base stations, automotive radar, and direct broadcast satellite systems.

PCB Construction Details

The following table outlines the construction details of the RO4350B PCB:

Introduction to RO4350B Material

The Rogers RO4350B laminates are woven glass-reinforced hydrocarbon/ceramic composites, combining the electrical performance of PTFE with the manufacturability of FR-4 materials. These laminates offer exceptional dimensional stability, low loss, and thermal reliability, making them ideal for high-power RF and microwave applications.

Key Features of RO4350B

• Dielectric Constant (Dk): 3.48 ± 0.05 at 10GHz / 23°C.
• Dissipation Factor: 0.0037 at 10GHz.
• Thermal Conductivity: 0.69 W/m/°K for efficient heat dissipation.
• CTE (Coefficient of Thermal Expansion): X-axis: 10 ppm/°C. Y-axis: 12 ppm/°C. Z-axis: 32 ppm/°C.
• High Tg: >280°C for thermal stability during processing and operation.
• Moisture Absorption: Extremely low at 0.06%.
• UL 94 V-0 Certified: Ensures flame resistance for safety-critical applications.

Benefits of RO4350B

• Cost-Effective: Processes like FR-4 at a fraction of the cost of PTFE laminates.
• Ideal for Multi-Layer Boards: Tight Dk control and low Z-axis CTE ensure reliable multilayer designs.
• Dimensional Stability: Maintains structural integrity under thermal and mechanical stress.
• Excellent Signal Performance: Low dissipation factor and dielectric loss for high-frequency designs.

Applications

1. Cellular Base Station Antennas
2. Power Amplifiers
3. RF Identification Tags (RFID)
4. Automotive Radar and Sensors
5. Direct Broadcast Satellites (DBS)
6. Microwave Components
7. LMDS and Wireless Broadband

Conclusion

The RO4350B 6-layer PCB is a high-performance solution for RF and microwave applications, offering low dielectric loss, thermal reliability, and dimensional stability. With its blind vias, 1.6mm finished thickness, and ENIG surface finish, this PCB is tailored for complex, high-frequency, multilayer designs such as cellular base station antennas, automotive radar systems, and direct broadcast satellites.

Compliant with IPC-Class-2 standards and available worldwide, the RO4350B PCB is the