As the electronics industry continues to advance, various electronic products continue to emerge. Among these products, aluminum PCB substrates and PCB boards are two very common substrates, which play key roles in the operation and assembly process of electronic products. However, although the two substrates look similar, they have many significant differences in technology, process and purpose. In the following content, we will compare these two substrates in detail from multiple perspectives.
The following are several types of aluminum substrate PCBs:
Single-sided aluminum PCB: Only one side is attached with circuit board printed circuits, and the other side is pure aluminum or tin-plated. This aluminum substrate is suitable for electronic products that require fewer components and lower power.
Double-sided aluminum PCB: An aluminum substrate with circuit board printed circuits attached to both sides. It can connect circuits on both sides through side holes, blind holes, through holes, etc., and is suitable for electronic products that require more components and higher power.
Thick copper-aluminum PCB: On the ordinary aluminum substrate, after multiple copper platings, thick copper sheets are manufactured. This kind of aluminum substrate has good durability and is suitable for electronic products that require high power, high frequency, and high reliability.
Metal base tape: Aluminum PCB is used as the base material, and the surface is plated with a layer of metal materials, such as copper, silver, nickel, etc. It has the electrical and thermal conductivity properties of metal and the lightness, thinness and high reliability of aluminum substrates. It is widely used in automobiles, aviation and other fields.
Flexible aluminum PCB: Through a special production process, the aluminum PCB is made into a bendable and foldable form. It has excellent thermal properties, corrosion resistance and excellent mechanical strength, and is suitable for mobile communications and other fields.
What are the differences between aluminum PCB and ordinary PCB board:
The substrate is different: the aluminum PCB is made of aluminum as the main material, while the ordinary PCB board is made of copper as the main material.
Different heat dissipation performance: The heat dissipation performance of aluminum substrate is better than that of ordinary PCB board because aluminum has better thermal conductivity.
Prices are different: The price of aluminum substrate is usually higher than that of ordinary PCB board because of its higher production cost.
Aluminum substrate PCB has the following advantages:Good heat dissipation: The aluminum PCB can quickly transfer heat, help the device dissipate heat, reduce thermal resistance, and improve heat dissipation performance.
High durability: Compared with FR-4 boards and ceramic substrates, aluminum PCB have higher durability and can avoid warping, bending, cracking, etc. during production and transportation.
Aluminum PCB is mainly used in the following fields:Audio equipment: used for input (output) amplifiers, balanced amplifiers, audio amplifiers, preamplifiers and power amplifiers, etc.