Various electronic, communication and electrical equipment have been widely used. This equipment not only need to shield the interference of external electromagnetic waves, but also need to reduce their own electromagnetic leakage to the environment and avoid electromagnetic interference between various components inside the housing. Therefore, the shielding layer in the housing should not only have a good shielding effect, but also have the good absorbing performance to further reduce electromagnetic leakage and mutual electromagnetic interference between components.
Regardless of whether it is a complete signal of positive and negative levels, the surface of the shielding tape is immediately dedicated to the ground wire, so that a layer of tape will not affect it. Generally, there are two types of tape in the market: copper shielding tape, or aluminum shielding tape. Copper foil tape is fast and environmentally friendly as first choice.