Four-layer Heavy Copper Pcb

Four-layer heavy copper pcb is a high-end PCB board with many superior performance and characteristics. It consists of four layers of hard board, with two consecutive internal electrical layers sandwiched between them. This type of printed circuit board typically uses a VIN to point to an external power board and includes 3.3V, 5V, and 12V power cord connections.

The main characteristics of a 4-layer heavy copper pcb are as follows:

1. High stability

The four-layer heavy copper pcb uses high-quality materials to ensure its high stability. This means that it can operate under high current conditions and has excellent heat dissipation function, making this board very suitable for high-frequency electronic devices.

2. High speed

In this type of board, due to the complete grounding layer and grounding conductive layer, interference during signal transmission can be reduced and transmission speed can be improved.

3. High power output

Because heavy copper can withstand high current loads and prevent thermal effects, this circuit board can provide protection for high power output.

4. High density integration

In order to increase internal wiring, this type of printed circuit board introduces an internal connection layer. Therefore, more circuits, chips, and components can be installed on a heavy copper board, resulting in higher density integration.

Thanks to these advantages, this board can be widely used in fields such as communication, networking, and embedded systems.

The thickness of the board is 24 ± 0.24mm, and the surface has been treated with gold plating. It has excellent conductivity and corrosion resistance, which can meet the needs of modern high-tech circuits.

This board is mainly used in fields such as new energy vehicle control systems, smart home control systems, military aviation control systems, communication base station control systems, etc. In these fields, the electronic components carried by printed circuit boards need to have characteristics such as high-speed transmission, high-density layout, stability and reliability. In order to maximize various performance, we must provide hardware support with high-quality printed circuit boards.

The printed circuit board is made of S1000-2MB and copper bar, both of which have good conductivity and mechanical properties, ensuring long-term stable operation of the printed circuit board at high frequencies and temperatures.

S1000-2MB is a high-performance epoxy resin glass fiber cloth material, which has good chemical stability and high temperature performance, and can also maintain good mechanical strength and fire resistance under ordinary conditions. The use of this material can provide good heat resistance and anti-aging performance, and effectively protect the safe operation of components.

Copper bar is another important material for four-layer heavy copper printed circuit boards. It is a high-purity copper material with good conductivity and thermal conductivity, as well as high strength and corrosion resistance. It will not deform or corrode after long-term use.

Compared with ordinary printed circuit boards, the main advantages of 4-layer heavy copper printed circuit boards are that their circuit construction is more precise, signal transmission is more stable, and they can maintain high reliability in high-power, high-temperature and other environments. Meanwhile, due to its surface being treated with gold plating, it has stronger corrosion resistance and longer lifespan.

The 4-layer heavy copper printed circuit board combines the characteristics of both multi-layer and heavy copper. The multi-layer structure requires strict control over the substrate's shrinkage, drilling accuracy, copper thickness, and other aspects in processes such as pressing, drilling, and electroplating. After more than ten years of development, Sihui Fuji has continuously accumulated experience in the production of printed circuit boards. Through continuous research and excellence, we have obtained UL certification for 2-layer 15oz and multi-layer 13oz. We have made significant progress in the manufacturing of ultra-thick copper printed circuit boards. In the future, we will continue to work hard and make greater breakthroughs in the research and development, production, and manufacturing of higher copper thickness and higher precision printed circuit boards.

Picture：Four-layer heavy copper pcb

The specification of sample board

Item:Four-layer heavy copper pcb

Layer:4

Characteristic:Inner and outer copper layers with a thickness of 300um

Board thickness:2.4±0.24mm

Surface treatment:ENIG

Field:New energy vehicles

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