EMI shielding tapes and films refer to the use of shielding (molded conductive material) to partially or completely enclose electronic circuits, limiting the amount of EMI radiation that penetrates the circuit from the external environment. Likewise, it limits the amount of EMI energy generated by the circuit to the external environment.
The shielding layer is altered by absorbing or reflecting electromagnetic waves through conductive or ferromagnetic materials. When it comes to EMI shielding, there are three different mechanisms:
Effective EMI shielding materials
Effective EMI shielding materials require good electrical and magnetic conductivity. Common materials used for EMI shielding include metals, carbon matrix composites, intrinsically conductive polymers, silicones, foams, films, and fabrics.
EMI Shielding Tapes – Cable Shielding
These are tapes or films covering insulated conductors of power or instrument cables. When used on power lines, this prevents electromagnetic waves from affecting nearby electronic components. When used for instrument wiring, the primary function is to prevent external electromagnetic waves from distorting the signals flowing through the cable. The shielding layer is grounded to ensure that any current or stored energy leaking through parasitic capacitance is transferred to the ground.
Product Shielding Performances
Customization
Shielding laminates
Vacuum metallized films & fabrics
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