FPC
Multilayer impedance FPC
2、 Manufacturing process 2、 Manufacturing process

The manufacturing process of multi-layer impedance FPC is relatively complex, requiring high-precision process control and advanced production equipment. It mainly includes the following steps:
Inner layer circuit fabrication: Inner layer circuits are fabricated on the substrate, and predetermined circuit patterns are formed through processes such as photolithography and etching.
Layering and Drilling: The produced single-layer circuit board is laminated according to design requirements to form a multi-layer structure. Then, precision drilling equipment is used to drill holes at the required locations in preparation for subsequent electrical connections.
Electroplating and impedance control: Electroplating treatment is performed after drilling to form a conductive layer. At the same time, precise control of circuit characteristic impedance can be achieved by adjusting electroplating parameters and selecting insulation layer materials.
Surface treatment and cover film bonding: Apply anti-oxidation treatment to the surface of the multi-layer board and bond the cover film at designated locations to protect the circuit from short circuits and external environmental influences.
Forming and inspection: After cutting, bending and other steps, the FPC circuit board is finally formed according to the product form requirements, and undergoes strict quality inspection to ensure compliance with design and usage standards.

  • 1、 Structural characteristics1、 Structural characteristics
  • 3、 Application Fields3、 Application Fields
  • 4、 Advantages and Challenges4、 Advantages and Challenges
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    Haibo is an expert in the field of FPC/PCB manufacturing and surface mount assembly in China. Since our establishment in 2017, we have been providing high-quality PCBs to over 1000 customers worldwide. Our factory has passed ISO14001, ISO9001:2015, TS16949, and ISO13485:2016 certifications. We are one of the most trusted small and medium-sized FPC/PCB manufacturers in China.
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