PCB News - The difference between circuit board and aluminum substrate

The difference between circuit board and aluminum substrate

What is a circuit board

Circuit boards generally refer to printed circuit boards. Printed circuit board {PCB circuit board}, also known as printed circuit board, is a provider of electrical connections for electronic components. Its development has a history of more than 100 years; its design is mainly layout design; the main advantage of using circuit boards is to greatly reduce wiring and assembly errors, and improve the level of automation and production labor rate.

According to the number of circuit boards, it can be divided into single-sided circuit boards, double-sided circuit boards, four-layer circuit boards, six-layer circuit boards and other multilayer circuit boards. Since the printed circuit board is not a general terminal product, the definition of the name is a little confusing. For example, the motherboard used in personal computers is called the main board, and cannot be directly called the circuit board. Although there are circuit boards in the main board, They are not the same, so when evaluating the industry, the two are related but cannot be said to be the same. Another example: because there are integrated circuit parts mounted on the circuit board, the news media call it an IC board, but in fact it is not the same as a printed circuit board. We usually say that the printed circuit board refers to the bare board-that is, the circuit board without upper components.

What is aluminum substrate

The aluminum substrate is a metal-based copper clad laminate with good heat dissipation function. Generally, a single-sided aluminum substrate is composed of a three-layer structure, which is a circuit layer (copper foil), an insulating layer and a metal base layer. Commonly found 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. Currently there are ceramic substrates and so on.

The company is a circuit board manufacturer, focusing on the production of high-multilayer circuit boards, impedance PCB boards, thick copper boards, HDI boards, FPC flexible and hard board, PCB circuit board proofing and small and medium batch production.