Embossed copper foil tape: in-depth analysis of high conductivity and high electromagnetic shielding effectiveness

In the modern electronics industry, copper foil tape has become an indispensable part of many electronic product manufacturing processes due to its excellent conductivity and good adhesion. As a type of copper foil tape, embossed copper foil tape has particularly outstanding performance. This article will explore in depth whether embossed copper foil tape has high conductivity and high electromagnetic shielding effectiveness, and quote from Advanced Institute (Shenzhen) Technology Co., LtdYanbo brand embossed copper foil tapeThe relevant data is used as a reference.

1、 High conductivity

One of the core advantages of embossed copper foil tape is its high conductivity. Copper foil itself is a highly conductive material, and its conductivity is usually close to the standard value of copper (5.8 × 10 ^ 7 S/m). In practical applications, the conductivity of embossed copper foil tape has been further optimized.

According to relevant information, the purity of embossed copper foil tape usually reaches 99.98%, the substrate thickness is between 0.018mm-0.05mm, and the adhesive thickness is about 0.035mm-0.04mm. These parameters ensure that the embossed copper foil tape has a low electrical resistivity, thereby ensuring good conductivity. For example,3M copper foil tape1345, as a connecting material between wires in circuits, can significantly improve the conductivity of circuit boards.

In practical testing, the conductivity of copper foil can be measured using the four probe method or the direct current resistance method. The four probe method uses four probes to contact the copper foil surface and measure the resistance value to calculate the conductivity; The direct current resistance method measures the resistance value of copper foil at a certain length and width, and calculates the conductivity through the resistivity formula. According to the test results, the resistivity of embossed copper foil tape is usually low, ensuring its excellent conductivity.

2、 High electromagnetic shielding effectiveness

In addition to high conductivity,Embossed copper foil tapeIt also has excellent electromagnetic shielding performance. Electromagnetic shielding refers to the use of conductive materials to reflect, absorb, and attenuate electromagnetic waves, thereby reducing the impact of electromagnetic interference on electronic products.

The embossed copper foil tape can form an effective electromagnetic shielding layer due to its high conductivity and good adhesion. In the electronics industry, embossed copper foil tape is widely used for electromagnetic shielding to reduce the impact of electromagnetic interference on electronic products. For example, in the manufacturing process of circuit boards, copper foil tape can be used as an electromagnetic shielding material to reduce the interference of electromagnetic waves on the circuit board.

The evaluation of electromagnetic shielding effectiveness is usually carried out through transmission line method, coaxial cable method, or plane anechoic chamber method. These methods evaluate the ability of copper foil to reflect, absorb, and attenuate electromagnetic waves by measuring its shielding effectiveness at different frequencies. According to the test results, the shielding effectiveness of embossed copper foil tape is usually between 30-100 dB, depending on the application scenario and factors such as the thickness and purity of the copper foil.

3、 Yanbo brand copper foil tape

Advanced Institute (Shenzhen) Technology Co., LtdAs a well-known brand in the market, Heyanbo brand copper foil tape has excellent performance in terms of conductivity and electromagnetic shielding effectiveness.

The copper foil tape products of Advanced Institute (Shenzhen) Technology Co., Ltd. have the characteristics of ultra-thin, high conductivity, and high shielding. For example, its 4.5um double-sided copper plated PET film ultra-thin high conductivity electroplated gold tin plated copper foil tape not only has excellent conductivity, but also has good electromagnetic shielding effectiveness. This product is widely used in the fields of electronics, communication, and electrical engineering, providing reliable electromagnetic protection for electronic products.

Yanbo brand nickel plated copper foil tape also performs well. By chemical methods, a thin and dense nickel layer is formed on the surface of copper foil,Yanbo brand nickel plated copper foil tapeNot only does it improve the oxidation resistance of copper foil, but it also further enhances its conductivity and mechanical strength. This product is widely used in the fields of shielding and conductive connection of electronic devices, providing efficient and stable electromagnetic shielding and conductive connection solutions for electronic products.

Data comparison and conclusion

Here are some key data comparisons to further illustrate the high conductivity and electromagnetic shielding effectiveness of embossed copper foil tape:

• Conductivity: The conductivity of embossed copper foil tape is close to the standard value of copper (5.8 × 10 ^ 7 S/m), with low resistivity, ensuring good conductivity.
• Electromagnetic shielding effectiveness: The shielding effectiveness of embossed copper foil tape is usually between 30-100 dB, depending on the application scenario and factors such as copper foil thickness and purity.
• Practical application: Advanced Institute (Shenzhen) Technology Co., Ltd.'s ultra-thin high conductivity electroplated gold tin plated copper foil tape and research platinum brand nickel plated copper foil tape have been widely used in the electronics industry, proving the high conductivity and electromagnetic shielding effectiveness of embossed copper foil tape.

in summary,Embossed copper foil tapeDue to its high conductivity and electromagnetic shielding effectiveness, it has become an indispensable part of the modern electronics industry. Whether in the fields of circuit board manufacturing, battery connection, or electromagnetic shielding, embossed copper foil tape plays an important role. With the continuous development of the electronics industry, the application prospects of embossed copper foil tape will be even broader.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.