Introduction
The Rogers RO4350B High Frequency PCB is engineered for applications requiring exceptional electrical performance and manufacturability. The RO4350B materials feature proprietary woven glass reinforced hydrocarbon/ceramics that deliver electrical performance comparable to PTFE/woven glass, combined with the ease of processing found in epoxy/glass. These laminates maintain tight control over dielectric constant (Dk) while ensuring low loss, all at a fraction of the cost of conventional microwave materials. Unlike PTFE-based options, RO4350B does not require special through-hole treatments or handling procedures, making it user-friendly. Additionally, it is UL 94 V-0 rated, suitable for active devices and high-power RF designs.

The RO4450F bondply complements the RO4350B core, consisting of several grades compatible with RO4000 laminates for multi-layer constructions. Its high postcure Tg allows it to handle multiple lamination cycles, making it ideal for applications requiring sequential laminations. The bondply is also compatible with FR-4 requirements, enabling the combination of RO4450F and low-flow FR-4 bondplies in non-homogeneous multi-layer constructions.

Features
RO4350B:
Dielectric Constant (Dk): 3.48 ± 0.05 at 10 GHz/23°C
Dissipation Factor: 0.0037 at 10 GHz/23°C
Thermal Conductivity: 0.69 W/m/°K
CTE: X: 10 ppm/°C, Y: 12 ppm/°C, Z: 32 ppm/°C
Glass Transition Temperature (Tg): >280 °C
Water Absorption: 0.06%

RO4450F:
Dielectric Constant (Dk): 3.52 ± 0.05 at 10 GHz/23°C
Dissipation Factor: 0.004 at 10 GHz/23°C
Thermal Conductivity: 0.65 W/m/°K
CTE: X: 19 ppm/°C, Y: 17 ppm/°C, Z: 50 ppm/°C
Glass Transition Temperature (Tg): >280 °C
Water Absorption: 0.04%

Technical Specifications
PCB Stackup: 2-layer rigid PCB

Copper Layer 1: 35 μm
Rogers RO4350B Core: 0.762 mm (30 mil)
Copper Layer 2: 18 μm
Prepreg Bond-ply (RO4450F): 0.101 mm (4 mil)
Rogers RO4350B Core: 0.762 mm (30 mil)
Copper Layer 3: 35 μm

The board dimensions are 42.35 mm x 42.35 mm (± 0.15 mm), with a finished board thickness of 1.7 mm. It supports a minimum trace/space of 5/5 mils and a minimum hole size of 0.3 mm. The finished copper weight is 1 oz (1.4 mils) for the outer layers and 0.5 oz (0.7 mils) for the inner layer, with a via plating thickness of 20 μm. The surface finish is ENIG, with a yellow silkscreen on the top and a green solder mask.

Applications
The Rogers RO4350B PCB is suitable for a variety of applications, including:

Cellular base station antennas and power amplifiers
RF identification tags
Automotive radar and sensors
LNBs for direct broadcast satellites

Availability
The Rogers RO4350B PCB is available worldwide, designed to meet the demands of modern high-frequency applications. Its advanced material properties and user-friendly processing methods make it an essential choice for engineers and designers.

Company Profile

Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen China, severing cellular base station antenna, satellite, high frequency passive components, microstrip line and band line circuit, millimeter wave equipment, radar systems, digital radio frequency antenna and other fields worldwide for 18 years. Our high frequency PCBs are mainly built on 3 high frequency material brands: Rogers Corporation, Taconic and Wangling. Dielectric constant ranges from 2.2 to 10.2 etc.

Bicheng PCB is headquartered in Shenzhen, a city with great economic vitality. Based in China, we adhere to the philosophy of servicing small and medium sized companies offering variety of circuit boards to meet the demands of market.

Main Business & PCB Applications

We maintain the highest standards which support products that exhibit exceptional quality, performance and reliability. We also have divisions of FR-4 circuit board, flexible circuits and metal core PCBs featured as prototypes, small runs to mass production. We actively research and build such high value added PCB projects as HDI, quick turn, impedance control, heavy copper and backplane board etc. This has made our PCB products generate an effective prolongation and complementation, as well as formation of integrated products line ranging from low-end to high-end.The circuit boards are used in the industries of home appliances, portable and consumable electronics, medical filed, aerospace as well as telecommunications etc.

Main Material Partners