Electromagnetic shielding film

Introduction to electronic shielding films

The electronic shielding film uses composite metals as shielding materials, offering excellent 0SP performance and resistance to corrosion solvents. In shielding and winding characteristics, it surpasses similar products on the market. Electromagnetic shielding films are suitable for flexible printed circuits. It features high shielding, flexibility, and heat resistance. Cables suitable for mobile phone touchscreen connections and camera circuits offer strong protection against electromagnetic interference!

The electromagnetic shielding film produced by our company is a general-purpose FPC flexible board electromagnetic shielding film, and is more suitable for high drop (rigid-flex boards or multilayer FPCs).

Appearance of electronic shielding film products

Application cases of electronic shielding films

Product structure of electronic shielding films

The product mainly consists of an insulating layer, alloy layer, and conductive adhesive structure. Below are the specific material parameters for each layer

First layer: release film

Second layer: conductive adhesive layer

Third layer: Metal layer

Fourth layer: Insulation layer

Fifth layer: Load-bearing membrane

Surface resistance of electronic shielding films

                  Test Conditions (mm)
                  10    20    30     40       50      60      70
PZ-6000-1   0.2   0.2   0.32   0.38   0.83   1.18   1.22
PZ-6000-X   0.3   0.3   0.38   0.43   0.75   0.96   1.03

Shielding performance parameters of electronic shielding films

Through the Advantest electric field shielding test, it can maintain 55 dB in the 3000MHz range
These are the values.

Chemical resistance of electronic shielding films

After hot pressing for 120 seconds, cure at 160°C for 1.2 hours
1: After soaking for 10 minutes, perform a hundred-bar test (100 bars/cm), tape it, then peel off to see if it falls off→ observe the surface

2: After soaking for 15 minutes, scrape 10 times with a cotton swab, then observe the surface
3: Butyl acetate 15%, ethyl acetate 15%, n-butanol 10~15%, ethanol 10%, acetone 5~10%, benzene 20%, xylene 20%

Recess coverage of electronic shielding films

Because we use highly flexible resins, our products have excellent concave coverage
Even when the recess diameter of the FPC is small, good resistance values are maintained
Friction resistance of electronic shielding films

After testing, the electronic shielding film produced by our company can be rubbed 30,000 times without peeling off

Because of its excellent abrasion resistance, the insulation layer does not peel off.

Main parameter table of electronic shielding films