Aluminum based circuit board is a type of circuit board that uses aluminum based materials as substrates, mainly used in electronic devices with high heat dissipation requirements. The production process of aluminum based circuit boards mainly includes the following steps:
1. Substrate cutting: Firstly, the required size of aluminum based material is cut into corresponding sized substrates, usually using CNC machine tools for precise cutting.
2. Anti corrosion treatment: Aluminum based materials are susceptible to oxidation and therefore require anti-corrosion treatment. Common methods include anodizing treatment, chemical aluminum plating, etc.
3. Printed circuit: Coating a layer of conductive ink on the surface of the substrate, and then exposing and etching the pattern through photolithography technology to form a circuit pattern.
4. Surface treatment: After the circuit is completed, it is necessary to perform surface treatment on the substrate. Common methods include tin spraying, lead spraying, etc., to improve the conductivity of the circuit board.
5. Welding components: Fix the components on the circuit board through welding technology and connect them to the circuit graphics.
6. Compression treatment: Place the assembled circuit board into a compression machine for high-temperature and high-pressure treatment to firmly bond the various layers inside the circuit board.
7. Testing and Inspection: After the above process steps, strict testing and inspection of the finished product are required to ensure that the product quality meets the requirements.
The above are the main production process steps of aluminum based circuit boards, and each step requires strict operation and control to ensure that the quality and performance of the circuit board meet the requirements. With the development of electronic technology, aluminum based circuit boards have broad application prospects in high-frequency, high-speed, high-power, high-density and other fields.