General knowledge on the use of copper foil tape

Copper foil tape, is a kind of metal tape, mainly used in electromagnetic shielding, electrical shielding, and magnetic signal shielding two kinds, electrical shielding mainly relies on the excellent electrical conductivity of copper itself, and magnetic shielding requires copper foil tape with rubber surface conductive material "nickel" to achieve the role of magnetic shielding, so it is widely used in mobile phones, notebook computers, and other digital products.

Copper foil tape is a commonly used electronic material that is typically used for circuit board fabrication, EMI shielding, grounding, contact, and heat dissipation applications. The following is some general knowledge on the use of copper foil tape.

1. Before using copper foil tape, it is important to ensure that the surface is clean and free of dust, oil, corrosives, and dirt, as this will affect its bonding properties.
2. Copper foil tapes are usually stored in a dry, clean environment. Humidity or heat should be avoided as this may affect its performance.
3. When applying copper foil tape, it is important to ensure that there are no air bubbles or wrinkles on the adhesive surface to ensure good adhesion properties.
4. Care must be taken when using copper foil tape. Do not overstretch or bend it as this may affect its performance.
5. Copper foil tapes are available in different thicknesses and the appropriate thickness should be selected for the specific application.
6. When peeling copper foil tape, it should be peeled slowly and carefully to avoid damaging its surface or backside.
7. Copper foil tape has some electrical conductivity, so care should be taken to avoid direct contact with other conductive materials to avoid electrical problems.
8. When storing and using copper-foil tape, avoid prolonged exposure to sunlight as this may affect its adhesion properties and life.
9. Copper foil tape should not be used in high temperature or high humidity environments to avoid affecting its performance.

In conclusion, when using copper foil tape, it should be selected according to the specific application requirements and related requirements, and attention should be paid to storage, use, and maintenance.

• Material: CU 99.98%
• Substrate thickness: 0.007mm-0.075mm
• Adhesive thickness: 0.015mm~0.04mm
• Colloidal ingredients: ordinary pressure-sensitive adhesive (non-conductive) and conductive acrylic pressure-sensitive adhesive
• Stripping force: 0.2 ~ 1.5kgf/25mm (180-degree reverse stripping force test)
• Temperature resistance: -10℃-- 120℃
• Tensile strength: 4.5 ~ 4.8kg/mm
• Elongation: 7% ~ 10%MIN

• In a certain range, the shielding effect of copper foil tape is indeed improved with the increase of copper foil substrate thickness. This is because the thickness of the copper foil substrate will increase the quality and density of the copper foil tape, making it more effective in shielding electromagnetic waves.
• However, the shielding effect of copper foil tape depends not only on the thickness of the copper foil substrate, but also on many other factors, such as the width of the tape, the type and thickness of the adhesive, the environment in which it is used, and so on. Therefore, only relying on the thickness of copper foil substrate to measure the shielding effect of copper foil tape is not accurate. Select copper foil tape according to the requirements and conditions of the specific application.

1.  mobile phone repair shielding: because copper foil tape has the characteristics of electrical signal shielding and magnetic signal shielding, some common communication things should not be used on specific occasions, after special treatment, it can be taken on special occasions.
2.  Punching slicing application: large-scale factory workshops usually use copper sheet materials to manufacture products, and copper foil tape die-cutting is made into slices and applied to production, which not only greatly improves production power and reduces production cost, but also is economical and useful.
3.  liquid crystal display: manufacturers and communication shopping malls usually use copper foil paste electronic products, including LCD TV, computer monitor, tablet computer, and digital products.
4. Electronic circuit manufacturing: Copper foil tapes can be used as signal, ground or power layers for circuit boards. They can be used to connect components, wires and other electronic devices to form circuits.
5. Cable shielding: Copper foil tapes can be used as cable shielding to prevent electromagnetic interference and signal interference.
6. Electromagnetic wave shielding: Copper foil tapes can be used to shield electromagnetic waves, for example to reduce RFI (radio frequency interference) or EMI (electromagnetic interference).
7. Decorative uses: Copper foil tapes can be used for decorative items and handicrafts, such as decals, cards and gift wrapping.