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.

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.

We maintain the highest standards which support products that exhibit exceptional quality, performance and reliability. The circuit board ranges from conventional FR-4 to PTFE, metal core to flexible circuits which are used in the industries of home appliances, portable and consumable electronics, medical filed, aerospace as well as telecommunications etc.

Main material partners