In the fields of electronic manufacturing, electromagnetic compatibility (EMC) and signal transmission, copper foil tape plays a key, irreplaceable role. With its unique conductivity and shielding effectiveness, it has become an essential material for engineers and manufacturers.
Naikos copper foil tape consists of a copper foil backing coated with conductive or non-conductive acrylic pressure-sensitive adhesive. It exhibits excellent conductivity performance and EMI shielding capabilities for various applications.
Core functions:
Electromagnetic shielding (EMI/RFI Shielding): Block or absorb electromagnetic interference to ensure the normal operation of equipment.
ESD Protection: Channel static charges to protect sensitive electronic components.
Grounding: Provide a low-impedance grounding path for circuits or components to ensure reliable operation.
Signal shielding: Prevent signal crosstalk and improve transmission quality.
Gasketing: Fill the gaps in the chassis or components to enhance the overall shielding effectiveness.
Core application areas of copper foil tape
Electronic and electrical industry:
PCB board shielding and grounding: Wrap cables, cover board edges, and connect grounding.
Cable shielding: Wrap wire harnesses to suppress electromagnetic radiation/interference.
Electronic equipment housing shielding: Paste on the inner wall of the plastic chassis to build a shielding layer.
LCD/LED shielding: Reduce electromagnetic interference on the display.
Communications and IT equipment:
Internal electromagnetic shielding and grounding of mobile phones, routers, servers, etc.
Shielding of network cables and interfaces.
Automotive electronics:
EMC protection of automotive sensors, control units (ECUs), and navigation and entertainment systems.
Signal shielding and grounding of new energy vehicle battery packs.
Industrial automation:
Electromagnetic compatibility processing for industrial control equipment, frequency converters, and servo drives.
How to choose high-quality copper foil tape?
Conductive performance:
Surface resistance (Ω/sq): The lower the value, the better the conductivity (ordinary <0.1Ω/sq, high conductivity <0.05Ω/sq).
Adhesive conductivity: Ordinary glue only conducts electricity on the copper layer; conductive glue achieves double-sided conduction and is suitable for grounding point welding.
Shielding effectiveness (SE):
Measures the ability to block electromagnetic waves, in dB, the higher the value, the better (common 30 dB-70 dB+, high-frequency attenuation is more critical).
Adhesion and substrate adaptability:
Select the appropriate glue type according to the bonding surface (plastic, metal, glass, etc.) (such as acrylic glue has strong versatility).
Pay attention to initial adhesion and lasting adhesion to ensure long-term stability.
Environmental tolerance:
Temperature resistance: Operating temperature range (e.g., -20°C to 120°C).
Chemical resistance: Anti-corrosion by solvents, greases, etc.
Aging resistance: Performance stability after long-term use.
Physical properties:
Copper foil thickness: Affects flexibility, conductivity, and cost (commonly 35μm).
Flexibility/ductility: Adapts to curved surface pasting needs.
Industry trends and prospects
High-performance requirements: 5G, Internet of Things (IoT), high-frequency and high-speed equipment promote the development of higher shielding effectiveness (especially above GHz frequency bands), thinner and more flexible copper foil tapes.
Environmental requirements: The application of lead-free, halogen-free, and recyclable materials is increasing.
Automated applications: Copper foil tapes that are more suitable for automated mounting processes (such as die-cut parts and coil design optimization).
Multifunctionality: Composite tapes with thermal conductivity, wave absorption, and other functions appear.
As a key electromagnetic compatibility and conductive material, the application value of copper foil tape is becoming increasingly prominent as the complexity of electronic equipment increases. Selecting high-quality copper foil tape that meets the needs and using it correctly can effectively improve product performance and reliability, and solve the problem of electromagnetic interference.
