Analysis of PCB high frequency board materials and classification


PCB high-frequency board manufacturing factory focuses on the production of high-frequency circuit boards and has advanced production equipment and technical strength.

The factory has a high-quality technical team and professional production processes to ensure the high quality and stability of the products.

High-frequency boards are widely used in communications, radar, aerospace and other fields, and have the advantages of high frequency, high speed, and low loss. The factory is committed to providing high-quality products and professional services to meet the various needs of customers.

PCB high-frequency board is a printed circuit board suitable for high-frequency signal transmission. Its material and classification are important knowledge in the field of electronic engineering. This article will analyze in detail the materials and classification of PCB high-frequency boards, including the characteristics of high-frequency boards, common materials and their advantages and disadvantages, classification methods, etc.

Characteristics of PCB high frequency board

Analysis of PCB high frequency board materials and classification

PCB high-frequency board is a printed circuit board suitable for high-frequency signal transmission. Its characteristics are mainly reflected in the following aspects:

  1. High-frequency characteristics: The high-frequency board is suitable for the transmission of high-frequency signals, has small signal delay and phase offset, and can ensure signal integrity.
  2. High-speed transmission: The high-frequency board has the characteristics of high-speed transmission and can meet the needs of high-speed data transmission.
  3. Precision manufacturing: The manufacturing process of high-frequency boards has high requirements, and the accuracy and stability of the circuit board need to be ensured.
  4. Low noise: During the signal transmission process of the high-frequency board, noise interference needs to be reduced as much as possible to ensure the quality of the signal.
  5. Good thermal stability: High-frequency boards need to maintain stable performance in high-temperature environments, so they need to have good thermal stability.

PCB high frequency board material

The materials of PCB high-frequency boards mainly include the following:

  1. Substrate material: The substrate material of high frequency board mainly includes FR4, CEM-1, aluminum substrate, etc. FR4 is a common substrate material with good electrical and mechanical properties and is relatively cheap; CEM-1 is a composite substrate material with good electrical and mechanical properties as well as high thermal resistance. Conductivity; Aluminum substrate is a metal substrate material with high thermal conductivity and mechanical strength, but the price is higher.
  2. Preg material: Preg is an intermediate material used to make laminates. Its materials mainly include polyimide (PI), polyester (PET), etc. Polyimide has high heat resistance and electrical properties, but the price is high; polyester has the advantages of cheap price and easy processing, but poor heat resistance and electrical properties.
  3. Copper foil material: Copper foil is the basic material that constitutes circuits. Its materials mainly include electrolytic copper foil and rolled copper foil. Electrolytic copper foil has good electrical conductivity and ductility, but poor heat resistance and mechanical strength; rolled copper foil has good heat resistance and mechanical strength, but is more expensive.
  4. Covering film material: Covering film is used to protect the circuit from the external environment. Its materials mainly include polyimide (PI), polyester (PET), etc. Polyimide has high heat resistance and electrical properties, but the price is high; polyester has the advantages of cheap price and easy processing, but poor heat resistance and electrical properties.

Classification of PCB high frequency boards

PCB high-frequency boards are mainly classified according to the following methods:

  1. Classification by frequency: According to the frequency of transmission signals, high-frequency boards can be divided into low-frequency high-frequency boards and high-frequency high-frequency boards. Low-frequency and high-frequency boards are suitable for transmitting lower-frequency signals, such as audio signals, etc.; high-frequency and high-frequency boards are suitable for transmitting higher-frequency signals, such as radio frequency signals.
  2. Classification by use: According to different uses, high-frequency boards can be divided into high-frequency boards for communications and high-frequency boards for electronic equipment. High-frequency boards for communications are mainly used in communication equipment and network equipment, such as switches, routers, etc.; high-frequency boards for electronic equipment are mainly used in electronic equipment, such as mobile phones, tablets, etc.
  3. Classification by structure: According to different structures, high-frequency boards can be divided into single-panel, double-panel and multi-layer boards. Single-sided boards have conductive paths on only one side; double-sided boards have conductive paths on both sides; multi-layer boards are composed of multiple layers of conductive paths and insulating layers.
  4. Classification by base material: According to different base materials, high-frequency boards can be divided into FR4 high-frequency boards, CEM-1 high-frequency boards, aluminum substrate high-frequency boards, etc.

PCB high frequency board manufacturing factory

Fumax PCB high-frequency board manufacturing factory focuses on the production of high-frequency circuit boards and has advanced production equipment and technical strength. The factory has a high-quality technical team and professional production processes to ensure the high quality and stability of the products. High-frequency boards are widely used in communications, radar, aerospace and other fields, and have the advantages of high frequency, high speed, and low loss. The factory is committed to providing high-quality products and professional services to meet the various needs of customers.

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