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PVD Magnetron Sputtering Technology for Capacitors Coating Copper

Date:2025-05-09 14:23:58 Hits:13
The main reasons for copper sputtering of capacitors include improving electrical conductivity, enhancing corrosion resistance, increasing welding reliability and optimizing heat dissipation. Specifically:
Copper is an excellent conductive material that can significantly reduce the contact resistance of capacitors, thereby enhancing the efficiency of current transmission. Especially in high-frequency circuits, good electrical conductivity is crucial for ensuring the response speed and efficiency of capacitors.
2. Enhance corrosion resistance. Electronic devices often need to operate under various environmental conditions, including harsh environments such as humidity and high temperatures. The copper plating layer can effectively resist the erosion of the external environment, protect the internal structure of the capacitor from damage, and thus extend the service life of the capacitor.
3. Enhancing Welding Reliability: In the manufacturing process of electronic devices, welding is an indispensable step. After the outer layer of the capacitor is copper-plated, it is easier to be soldered with the circuit board, which improves the reliability and stability of the soldering, simplifies the production process, and reduces the risk of circuit failure caused by poor soldering.
4. Optimizing heat dissipation: Capacitors generate heat during operation, especially under high loads or for long periods of use. The copper coating has excellent thermal conductivity, which can help capacitors dissipate heat more effectively and prevent performance degradation or damage caused by overheating.

PVD Magnetron Sputtering Technology for Capacitors Coating Copper

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