Understand the difference between aluminum substrate and pcb board in one article

Understand the difference between aluminum substrate and pcb board in one article

What is 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. 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.

What is a PCB board

PCB board generally refers to printed circuit board. 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 boards, double-sided boards, four-layer boards, six-layer 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 industries, 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.

The difference between aluminum substrate and pcb board

For some small partners who have just been engaged in the aluminum substrate industry, there will always be such a question, that is, what is the difference between aluminum substrate and PCB board. In response to this question, the following editor will specifically tell you what are the differences between the two the difference?

Both the PCB board and the aluminum substrate are designed in accordance with the requirements of the PCB board. At present, the aluminum-based PCB boards in the market are generally single-sided aluminum substrates. The PCB board is a large type, and the aluminum substrate is only the PCB board. It is only one type of aluminum-based metal plate, which is generally used in the LED industry because of its good thermal conductivity.

PCB boards are generally copper substrates, which are also divided into single-sided and double-sided boards. The materials used between the two are obviously different. The main material of the aluminum substrate is aluminum, while the main material of the PCB is copper. The aluminum substrate is special because of its PP material. The heat dissipation is better. The price is also more expensive

Comparing the two in terms of heat dissipation, the performance of the aluminum substrate in terms of heat dissipation is better than that of the PCB board, and its thermal conductivity is also different. The aluminum substrate is a kind of PCB, and the price of the aluminum substrate is more expensive.