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The choice of PCBA substrate, what are the common types
2021-10-02
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Author:Frank

The choice of PCBA substrate, what are the common types
At present, the country has higher and higher requirements for environmental protection and greater efforts in link governance. This is a challenge but also an opportunity for PCB factories. If the PCB factory is determined to solve the problem of environmental pollution, then FPC flexible circuit board products can be at the forefront of the market, and the PCB factory can get the opportunity to develop again.
The choice of PCBA substrate What are the commonly used types of PCBA substrate? PCBA substrates are mainly divided into the following three types, the following editor will introduce you:
1. FR-4 sheet

FR-4 board is a kind of epoxy board, which has high mechanical and dielectric properties, good heat resistance and moisture resistance, and good mechanical processability.

 

2. Aluminum substrate

The aluminum substrate is a metal-based copper clad laminate with good heat dissipation function. Generally, a single panel is composed of a three-layer structure, which is a circuit layer (copper foil), an insulating layer and a metal base layer. Aluminum substrates are often used in LED lighting products. There are two sides, the white side is for soldering the LED pins, and the other side is the natural color of aluminum. Generally, the thermal conductive paste will be applied to contact with the thermal conductive part.

 

pcb board

3. FPC board

FPC board is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material. It has the characteristics of high wiring density, light weight, thin thickness and good bendability. Used in high-end products such as mobile phones and hard drives.


Well, the above is the choice of PCBA substrate. What are the common types of related content? Usually, the choice of PCBA substrate will be different according to different product uses. The more advanced and high-end products use PCBA substrates, the more expensive and more expensive they are. advanced.
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