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Maoming selects pcb copper foil manufacturers

Release time: 2023-11-17 00:25:15
 Maoming selects pcb copper foil manufacturers

Maoming selects pcb copper foil manufacturers

Copper foil can be divided into calendered copper foil and electrolytic copper foil, which are mainly used for flexible printed circuits and other special purposes. In the production of clad laminates, a large number of applications are. As for the purity of copper, IEC-249-34 and Chinese standards stipulate that it shall not be lower than 99.8%.

 Maoming selects pcb copper foil manufacturers

Maoming selects pcb copper foil manufacturers

Definition of electrolytic copper foil: it is formed by depositing copper ions in electrolyte on the round cathode roller of smooth rotating stainless steel plate (or titanium plate). The surface close to the cathode roller is called smooth surface, and the other surface is called rough surface.

 Maoming selects pcb copper foil manufacturers

Maoming selects pcb copper foil manufacturers

Foil making material requirements: the thinner the thickness is, the higher the quality grade is, and the lower the impurity content in the electrolyte is required. In order to ensure the quality, the purity of copper must be greater than 99.9%.

 Maoming selects pcb copper foil manufacturers

Maoming selects pcb copper foil manufacturers

Calendered copper foil products have good ductility, flexibility, low roughness and high folding resistance, and have become the basic materials of flexible printed circuit boards, mainly used in flexible circuit boards and high-frequency circuit boards.

 Maoming selects pcb copper foil manufacturers

Maoming selects pcb copper foil manufacturers

Excellent tensile strength and elongation High tensile strength and elongation under normal conditions can improve processing ability, enhance rigidity and avoid wrinkles to improve production qualification rate. High temperature extensibility (THE) copper foil and high tensile strength copper foil at high temperature can improve the thermal stability of printed boards and avoid deformation and warpage.

 Maoming selects pcb copper foil manufacturers

Maoming selects pcb copper foil manufacturers

Copper foil is a key conductive material in lithium ion batteries and printed circuit boards. It is a kind of negative electrolytic material, a thin, continuous metal foil deposited on the substrate of circuit board.