China Wholesale Transparent Circuit Board Manufacturers - 4 Layer Rogers PCB 29671 – Huihe

About High frequency PCB

High frequency PCB refers to the special circuit board with high electromagnetic frequency, which is used for high frequency (frequency greater than 300MHz or wavelength in general, high frequency board can be defined as the circuit board with frequency above 1GHz. Substrate materials need to have excellent electrical properties, good chemical stability, with the increase of power signal frequency in the substrate loss requirements are very small.

Difficulties in high frequency PCB processing

1. Copper sink: the hole wall is not easy to copper

2. Control of graphic transfer, etching, line width line notch and sand hole

3. Green oil process: control the adhesion and foaming of green oil

4. Strictly control the scratch of the board surface in each process.

Application of high frequency PCB

Mobile communication products

power amplifier, low noise amplifier, etc

power splitter, coupler, duplexer, filter and other passive devices

Automobile anti-collision system, satellite system, radio system and other fields.

Equipment display

Automatic Plating Line

PTH line

LDI

CCD Exposure Machine

Our factory