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Processing Difficulties and Application Areas of Multilayer High Frequency PCB Production

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Multi-layer high frequency PCB is a more complex PCB structure, which consists of multi-layer circuit boards. In a multilayer HF PCB, components can be arranged and connected on multiple layers. The upper and lower layers are connected to each other through jacks and pads. Multi-layer high-frequency PCBs are usually used for complex circuits, such as base stations, wireless communications, aviation systems and so on.

A. Advantages and disadvantages of multi-layer high frequency PCB:


  1. a, Can realize complex circuit layout;
  2. b, Line crossing will reduce the board size;
  3. c, Suitable for complex circuit layout.


  1. a, Higher manufacturing cost;
  2. b, The manufacturing process is more complex than single-layer PCB;
  3. c, Not applicable to ultra-large circuit layout.

B. Multi-layer High Frequency Circuit Board Production Processing Difficulties:

  1. a, Immersed copper: the hole wall is not easy to copper plating;
  2. b, Control image conversion, etching, line width, line gap and sand holes;
  3. c, Green oil process: control of green oil adhesion and blistering;
  4. d, Strict control of each process surface scratches and other defects.

High Frequency PCB

C. Multi-layer High Frequency Circuit Board Production Process.

Cutting and opening - drilling - hole treatment (plasma treatment or chemical potion activation treatment) - chemical copper immersion - full-board plating - dry film - inspection - graphic plating - etching - etching inspection - anti-soldering - text - spraying tin - CNC appearance - electrical testing - final inspection - packaging - shipping shipments.

D. High Frequency Circuit Board Application Areas.

  1. a,5G communication, telecommunication equipment and other communication products;
  2. b, Power amplifiers, low noise amplifiers and so on;
  3. c, Passive components, such as power dividers, couplers, duplexers, filters, etc.;
  4. d, High-frequency electronic devices in the field of automobile collision avoidance system, satellite system, radio system, etc..

Xinchenger Electronics has more than ten years of strong production experience, skilled technology, engineering and quality service. With high quality, low cost and foreign information technology support and other advantages.

Supply high frequency PCB circuit board, Rogers high frequency board, Taconic high frequency board, F4B/Teflon high frequency board, microwave RF board, special circuit board. High frequency circuit boards, PCB high frequency boards, Rogers circuit boards, high frequency microwave radio frequency boards, microwave induction circuit boards and so on.

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