Fr4 High Frequency PCB fabrication companies

Fr4 High Frequency PCB fabrication companies

Brief information:

Origin:Shenzhen

Material: Fr4 high frequency(shengyi)

Layer:2

Final thickness:1.6mm

Black solder mask,white silkscreen

Surface finish: HASL

Copper: 70um

Export port: Shenzhen,HK,shanghai

Board size: 9*2.3CM

Fr4 high frequency pcb material center:

KB

Shengyi S7136

Elite EM-828G/828BG

Ventec

What is high frequency FR4 PCB?

High frequency electromagnetic circuit board, generally, high frequency can be defined as the frequency of 2GHz or more. Its physical properties, accuracy, technical parameters are very high, commonly used in automotive anti-collision system, satellite systems, radio systems and other fields.

The requirements of high frequency pcb material:

(1) the dielectric constant (Dk) must be very stable

(2) Dielectric loss (Df) must be small, which mainly affects the quality of signal transmission, the smaller the dielectric loss so that the signal loss is also smaller.

(3) and copper foil thermal expansion coefficient as far as possible, because inconsistencies in the change in the cold and heat caused by copper foil separation.

(4) low water absorption, high water absorption will be affected in the damp when the dielectric constant and dielectric loss.

(5) Other heat resistance, chemical resistance, impact strength, peel strength, etc. must also be good.