The automotive industry is undergoing a radical shift toward Advanced Driver Assistance Systems (ADAS) and autonomous driving. At the heart of these innovations lies high-frequency sensing technology. The RO4700 6-Layer Automotive Radar Transceiver Board is a high-performance, mission-critical PCB engineered specifically for 77GHz and 79GHz radar applications, providing the precision and thermal stability required for next-generation vehicular safety.
Advanced Substrate for High-Frequency Performance
Built on the Rogers RO4700™ series thermoset laminate, this board is designed to overcome the electrical limitations of standard FR-4. The RO4700 material offers a low dielectric constant (Dk) and an ultra-low dissipation factor (Df), which are essential for minimizing signal loss in radar transceiver modules. With a 0.4mm core thickness, this 6-layer stackup provides the rigid-flexibility and low-profile form factor necessary for compact sensor housing without compromising structural integrity.
Engineered for Signal Integrity: 100u” Gold Plating
In radar applications, the quality of the conductive surface is non-negotiable. This board features a specialized 100u” (2.54µm) Heavy Gold Plating (Hard Gold over Nickel). This thick gold finish serves dual purposes:
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Superior Wire Bonding: Provides an ideal surface for automated gold wire bonding, essential for connecting high-frequency transceiver ICs directly to the PCB.
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Corrosion Resistance: Offers maximum protection against oxidation and harsh automotive environments, ensuring a service life that matches the vehicle’s longevity.
Precision Manufacturing for Automotive Radar
Radar transceiver boards require extreme dimensional stability to maintain phase consistency across the antenna array. Our manufacturing process utilizes laser-direct imaging (LDI) to achieve the tight tolerances required for complex 6-layer designs. The 1/2oz (18µm) base copper weight is optimized for fine-line etching, allowing for high-density interconnects (HDI) while maintaining excellent thermal management across the transceiver’s power stages.
Key Technical Specifications
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Base Material: Rogers RO4700 High-Frequency Thermoset Laminate
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Layer Count: 6-Layer Multi-layer Stackup
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Board Thickness: 0.4mm (Ultra-thin for compact sensors)
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Copper Weight: 0.5oz (1/2oz) Finished Copper
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Surface Finish: 100u” Hard Gold Plating (Electrolytic Gold)
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Application: 24GHz / 77GHz / 79GHz Automotive Radar, ADAS, Collision Avoidance Systems
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Compliance: IPC Class 3, TS16949 Automotive Quality Standards
Why Choose PCBSync for Your Radar Projects?
At PCBSync, we understand that in the automotive sector, “good enough” is never enough. Our RO4700 radar boards undergo 100% AOI (Automated Optical Inspection) and Flying Probe testing to ensure zero-defect delivery. Whether you are prototyping a new Blind Spot Detection (BSD) module or scaling up production for Adaptive Cruise Control (ACC) systems, our RO4700 series boards provide the “certainty” and technical architecture required for complex, high-reliability RF tasks.
Order the RO4700 6-Layer Automotive Radar Transceiver Board today and drive the future of autonomous safety with PCBSync.
