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Rogers RO4350B PCB 4-Layer 0.5mm high Tg and low CTE PCB for Cellular Base Station Antennas
Rogers RO4350B PCB 4-Layer 0.5mm high Tg and low CTE PCB for Cellular Base Station Antennas
Printed Circuit Boards are custom-made products; the images and specifications provided are for reference only.
General Description
Rogers RO4350B PCB is a specialized 4-layer stepped RF printed circuit board designed for high-frequency applications. Built on Rogers RO4350B hydrocarbon/ceramic laminate, RO4350B PCB delivers stable electrical performance required for demanding RF and microwave circuits.
RO4350B PCB board features a unique stepped outline with two distinct sections (70mm x 50mm and 70mm x 40mm) and a slim 0.5mm profile. With immersion gold surface finish and complex via structures including blind vias (L1-L2, L1-L3) and buried vias (L2-L3), this PCB is manufactured to IPC-Class-2 standards and undergoes 100% electrical testing prior to global shipment.

PCB Construction Details & Specifications
Specification Category |
Details |
Base Material |
Rogers RO4350B |
Layer Count |
4 Layers |
Board Dimensions |
Stepped outline: 70mm x 50mm + 70mm x 40mm (±0.15mm) |
Finished Thickness |
0.5mm |
Copper Weight |
1 oz (35μm) outer layers |
Min. Trace/Space |
4/7 mils |
Min. Hole Size |
0.3mm |
Via Plating Thickness |
20 μm |
Blind & Buried Vias |
L1-L2, L1-L3, L2-L3 |
Surface Finish |
Immersion Gold (ENIG) |
Solder Mask |
None (Top & Bottom) |
Silkscreen |
None (Top & Bottom) |
Electrical Test |
100% |
Additional Components & Features
4-Layer Rogers RO4350B PCB supports 9 components with 32 total pads, comprising 17 thru-hole pads and 15 top-side SMT pads. The design utilizes 23 vias to interconnect 4 nets. The stackup consists of Rogers RO4350B cores (0.762mm) with RO4450F prepreg (0.102mm), all with 35μm copper layers. The board is supplied with Gerber RS-274-X artwork data and complies with IPC-Class-2 quality standards for worldwide availability.
Material Advantages of Rogers RO4350B
Rogers RO4350B laminate provides a stable dielectric constant (3.48±0.05) and low dissipation factor (0.0037) at 10GHz. With a high Tg >280°C and low CTE (X:10, Y:12, Z:32 ppm/°C), it offers excellent dimensional stability for multilayer constructions. The material features low water absorption (0.06%), good thermal conductivity (0.69 W/m/°K), and processes similarly to FR-4, making it a cost-effective solution for high-frequency applications without requiring special PTFE handling procedures.
Typical Applications
• Cellular Base Station Antennas and Power Amplifiers
• RF Identification Tags
• Automotive Radar and Sensors
• LNB's for Direct Broadcast Satellites
Why Choose This PCB?
This stepped RF PCB combines the superior high-frequency performance of Rogers RO4350B material with advanced manufacturing capabilities including blind and buried vias in an ultra-thin 0.5mm profile. The unique stepped outline design and absence of solder mask make it ideally suited for precision RF applications where signal integrity and dimensional stability are critical.
Order Now for RF & Wireless Applications!
Rogers RO4350B RF PCB is ready to enhance your high-frequency system performance with its proven reliability and stable electrical characteristics. Contact us today to discuss your specific requirements and receive a competitive quotation for your project needs.

