High Frequency PCB Built On 1.5mm Dual Layer PTFE (Teflon) Heavy Copper Circuit Boards

Dual Layer High Frequency PCB Built On 1.5mm PTFE (Teflon) with 3oz Copper and Immersion Gold

(PCB's are custom-made products, the picture and parameters shown are just for reference)

Hello everybody,

Today we talk about a type of F4B high frequency circuit board.

F4B series high frequency material is mainly PTFE glass fiber cloth and ceramic-filled PTFE glass fiber cloth etc. It is a series of high frequency materials of Chinese brand, which is cheap in price and stable in quality. It's widely applied to radar, navigation, satellite communication, 4G communications, 5G communications and the like.

The main specifications of this board is double sided board, substrate is F4B, DK at 2.65, 210mm long by 115mm wide, 1.6mm finished thick, finished copper 3oz, no solder mask no silkscreen, and surface finish is immersion gold.

Let’s see the stack up.

Top layer and bottom layer are 3oz copper finished. F4B dielectric material is in the middle of 2 layers copper, showing dielectric constant at 2.65.

From the photo of this board, the track is thicker than normal boards; surface finish is immersion gold and no solder mask and silkscreen.

The dielectric constant of F4B material is wide, ranging 2.2 to 3.0 etc. Board thickness ranges 0.17mm to 5.0mm. We can provide you with prototype service, small batches and mass production service.

Should you have any questions, please feel free to contact us.

Thank you for your reading.

Appendix: Data Sheet of PTFE(F4B)

Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd. is a well-established supplier and exporter of high-frequency PCBs based in Shenzhen, China. With 23 years of industry experience, the company serves global sectors such as cellular base station antennas, satellite communications, high-frequency passive components, microstrip and stripline circuits, millimeter-wave equipment, radar systems, and digital RF antennas. Bicheng's high-frequency PCBs are primarily manufactured using three major high-frequency material brands—Rogers Corporation, Taconic, and Wangling—with dielectric constants ranging from 2.2 to 10.2. Headquartered in the economically vibrant city of Shenzhen, Bicheng PCB operates with a philosophy centered on serving small and medium-sized enterprises, offering a wide variety of circuit boards to meet diverse market demands.

Main Business & PCB Applications

The company upholds the highest manufacturing standards to deliver products known for exceptional quality, performance, and reliability. In addition to high-frequency PCBs, Bicheng has divisions specializing in FR-4 circuit boards, high frequency PCBs, and RF PCBs, supporting everything from prototyping and small-batch production to mass manufacturing. The company actively develops value-added PCB solutions, including HDI, quick-turn production, impedance control, heavy copper, and backplane boards. This strategic focus enables Bicheng to offer an extended and complementary product range, forming an integrated line that spans from low-end to high-end PCBs. These circuit boards are widely used in home appliances, portable and consumer electronics, medical devices, aerospace, and telecommunications.

Main Material Partners