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What are the common types of PCBA substrates?
Source: | Author:Circuit board manufacturer | Add time: 2019-03-14 | | Share to:
FR-4 board is an epoxy board with high mechanical and dielectric properties ..

1. FR-4 board is an epoxy board, which has higher mechanical and dielectric properties, better heat resistance and moisture resistance, and has good machinability.

2. The aluminum substrate is a metal-based copper-clad board with good heat dissipation function. Generally, a single panel is composed of a three-layer structure, which is a circuit layer (copper foil), an insulation layer and a metal base layer. Aluminum substrates are commonly used in LED lighting products. There are two sides, the white side is soldered to the LED pins, and the other side shows the aluminum color. Generally, it will be in contact with the heat-conducting part after applying the heat-condensing paste.

3. FPC board is a kind of 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.

The choice of PCBA substrate varies according to different product uses. Generally, the higher-end the product, the higher the PCBA substrate used, and the more expensive it is.