Wangling's F4BM220 laminates represent a cutting-edge advancement in PCB technology. Crafted with a meticulous blend of fiberglass cloth, polytetrafluoroethylene resin, and polytetrafluoroethylene film, the F4BM220 sets a new standard for electrical performance and stability. With enhanced insulation resistance and reduced dielectric loss, this PCB outshines its predecessor, the F4B220, and is a competitive alternative to foreign products in the market.

Key Features:

Dielectric Constant (Dk): 2.2 at 10GHz
Dissipation Factor: 0.001 at 10GHz
Coefficient of Thermal Expansion (CTE): x-axis 25 ppm/°C, y-axis 34 ppm/°C, z-axis 240 ppm/°C (-55°C to 288°C)
Low Thermal Coefficient of Dk: -142 ppm/°C (-55°C to 150°C)
Moisture Absorption: ≤0.08%
Flammability: UL-94 V0

This PCB stackup comprises two copper layers with a thickness of 35 μm each, separated by a 1.00 mm F4BM220 core. The board dimensions are precisely set at 45mm x 62mm with a tolerance of ±0.15mm, suitable for various compact applications. The minimum trace/spacing requirements are 4/7 mils, with a minimum hole size of 0.3mm, facilitating intricate circuit designs.

A finished board thickness of 1.1mm, a copper weight of 1oz (1.4 mils) on outer layers, and a 20 μm via plating thickness contribute to this PCB's robust construction. The surface finish is achieved with immersion tin, while the top solder mask is green, and the top silkscreen is white. Prior to shipment, each PCB undergoes 100% electrical testing to ensure quality and reliability.

Supplied in Gerber RS-274-X format and adhering to IPC-Class-2 quality standards, the F4BM220 2-layer rigid PCB is available worldwide.

Typical Applications:

Microwave, RF, and radar systems
Phase shifters
Power dividers, couplers, combiners
Feed networks
Phase-sensitive antennas, phased array antennas
Satellite communications
Base station antennas

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