The shielding principle and technical application of copper foil tape

With the high integration of electronic devices and the rapid development of wireless communication technology, electromagnetic interference (EMI) has become an important factor affecting device performance stability and information security. Copper foil tape as an efficient methodelectromagnetic shielding materialIt is widely used in portable electronic devices such as mobile phones, tablets, and laptops. This article will delve into the shielding principle of copper foil tape and combine it with Advanced Institute (Shenzhen) Technology Co., LtdYanbo brand copper foil tapeProvide specific cases to demonstrate its application value in the field of electromagnetic shielding.

The shielding principle of copper foil tape

Electrical signal shielding

Copper foil tape mainly relies on the excellent conductivity of copper itself in electrical signal shielding. Copper is a highly conductive metal that can effectively absorb and reflect electromagnetic waves, thereby blocking the propagation path of electromagnetic interference signals. When copper foil tape is applied inside electronic devices, it forms a conductive layer that isolates sensitive circuits from the external electromagnetic environment, ensuring clear and accurate signal transmission.

Magnetic signal shielding

For the shielding of magnetic signals,COPPER FOIL TAPEIt is achieved through the conductive substance "nickel" contained in its adhesive surface. Nickel has good magnetic permeability, which can guide magnetic field lines around the protected area and reduce the interference of magnetic fields on internal electronic devices. Therefore, in situations where both electrical and magnetic signals need to be shielded simultaneously, copper foil tape can play a dual role in providing comprehensive electromagnetic shielding protection.

Advanced Institute (Shenzhen) Technology Co., Ltd. and Yanbo brand copper foil tape

Company Profile

Advanced Institute (Shenzhen) Technology Co., Ltd. is a company specializing in thermal conductive materialsShielding material、Conductive silver pasteHigh tech enterprises in fields such as flexible electrode materials. With strong research and development capabilities and rich industry experience, the company provides customers with high-quality electromagnetic shielding solutions.

Yanbo brand copper foil tape

Yanbo brand copper foil tape is one of the star products of Advanced Institute (Shenzhen) Technology Co., Ltd. It has excellent electromagnetic shielding performance and a wide range of application scenarios. Here are some key parameters and features of the product:

• Substrate composition: 99.95% pure copper, ensuring high conductivity.
• Substrate thickness: usually 0.012 ± 0.002mm, can be customized according to customer needs.
• Adhesive composition: Conductive acrylic adhesive, with good adhesion and conductivity.
• Peel force: ≥ 0.8kg/inch, ensuring that the tape is not easily peeled off during use.
• Holding viscosity: ≥ 12 hours, meeting the needs of long-term use.
• Impedance: Copper surface ≤ 0.02 Ω/□, adhesive surface ≤ 0.025 Ω/□, ensuring low resistance conductivity.

Application Cases

Yanbo brand copper foil tapeWidely used in the following fields:

1. Electromagnetic shielding of electronic devices: Copper foil tape serves as an electromagnetic shielding layer inside portable electronic devices such as mobile phones, tablets, and laptops, effectively isolating external electromagnetic wave interference and protecting internal circuits from the impact of external electromagnetic environments.

2. Thermal management of battery components: In industries such as new energy vehicles and portable power supplies, copper foil tape is often used as a thermal conduction medium between battery modules due to its good thermal conductivity, helping to quickly disperse the heat generated during battery charging and discharging, prevent performance degradation and even safety accidents caused by local overheating.

3. Circuit board repair and reinforcement: In the electronic manufacturing industry, copper foil tape is an ideal choice for repairing damaged circuits or carrying out circuit modifications due to its good adhesion and conductivity. It can provide additional support and protection for the circuit board, enhancing its ability to resist bending and stretching.

4. Electrostatic protection: In industries with extremely high environmental requirements such as semiconductor manufacturing and precision instrument assembly, copper foil tape can effectively introduce static charges into the ground, preventing the accumulation of static electricity from causing damage to sensitive components.

conclusion

Copper foil tape plays an important role in the field of electromagnetic shielding due to its excellent conductivity and magnetic shielding ability.Advanced Institute (Shenzhen) Technology Co., LtdThe research platinum brand copper foil tape has become the first choice for many electronic device manufacturers due to its high quality and wide range of application scenarios. With the advancement of technology and the continuous upgrading of demand, the technological content and application scope of copper foil tape will continue to expand, injecting new vitality into the innovative development of various industries.

The above data is for reference only, and specific performance may vary due to production processes and product specifications.