In the electronics industry, communication technology, and precision manufacturing fields, copper foil tape, as a key multi-functional composite material, has become one of the core materials for circuit design, EMI/EMC treatment, and thermal management due to its excellent conductivity, electromagnetic shielding performance, and ease of processing.
Copper Foil Tape Characteristics:
Excellent Conductivity: Volume resistivity can be as low as 0.015-0.05 Ω/cm², ensuring efficient current transmission and grounding.
Superior Electromagnetic Shielding Effectiveness (SE): Shielding effectiveness can reach 60-100 dB in the 30 MHz - 1 GHz frequency range, effectively suppressing electromagnetic interference (EMI) and radio frequency interference (RFI).
High Thermal Conductivity and Thermal Management Capabilities: The pure copper substrate has a thermal conductivity of up to 398 W/(m·K), commonly used for heat dissipation assistance.
Excellent Flexibility: Easy to die-cut and bend, conforming to various irregular surfaces.
Core Application Scenarios: From Electronics Manufacturing to Cutting-Edge Technology
PCB and Circuit Design: Used for circuit board jumpers, grounding, shielding, temporary circuit repair, and component shielding.
EMI/EMC Electromagnetic Shielding: Applied to the seams of electronic equipment casings, cable interfaces, and behind displays to effectively seal electromagnetic leakage and meet FCC, CE, and other certification requirements.
Lithium-ion Battery Manufacturing: Used for battery tab connections, cell wrapping insulatio,n and shielding, requiring the tape to have high purity and resistance to electrolytes.
Thermal Management Modules: Applied between heating elements and heat sinks to fill gaps and improve heat transfer efficiency.
Building and Pipeline Engineering: Used for anti-static grounding, pipe sealing, and conductive connections for waterproof layers.
Production Process Revealed: Precision Coating and Surface Treatment Technology
Copper Foil Selection and Treatment:
Rolled Copper Foil: Excellent flexibility, suitable for repeated bending applications.
Electrolytic Copper Foil: Lower cost, surface roughness facilitates adhesive adhesion.
The surface can be oxidized (reddened, blackened) or coated with an anti-oxidation layer to enhance long-term stability.
Conductive Adhesive Technology:
Conductive Adhesive: Filled with silver, copper, nickel, or carbon-based conductive particles to achieve "surface conductivity" and "Z-axis conductivity". Insulating Adhesive: Possesses high dielectric strength and is used in applications requiring electrical insulation.
The adhesive is certified by UL, RoHS, and other standards to ensure safety and environmental protection.
Precision Coating and Slitting: In a Class 1000 cleanroom, the adhesive is evenly applied using a precision coating head, controlling the adhesive layer thickness tolerance within ±2μm. High-speed slitting then ensures clean, burr-free edges.
As a professional adhesive tape manufacturer, we not only provide standard specifications of copper foil tape but also offer a one-stop customized solution based on your specific application scenarios, from material selection and structural design to precision die-cutting. If you require technical data sheets or sample testing, please contact our engineering team; we will provide you with professional technical support.
