EMI Shielding Films
WILMINA®
EMI Shielding Film for High-Speed FPCs
(Ultrathin / High Shielding Performance)
WILMINA®
SF-PC®3900R1 -C
SF-PC®3900R2 -C
UL 94 VTM-0 (when combined with Kapton® 50H)
* Kapton® is a registered trademark of an affiliate of Qnity Electronics, Inc.
Product Overview
These are thin shielding films with high shielding performance. As electronic devices become smaller and thinner and component mounting density increases, demand is growing for both thinner materials and higher shielding performance in high-frequency applications. These products are designed to meet such needs. SF-PC3900R1 -C or SF-PC3900R2 -C can be selected according to the required shielding performance and thickness.
Features
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High shielding performance
Product Shielding effectiveness 1GHz 10GHz SF-PC3900R1 -C 80dB or higher 85dB or higher SF-PC3900R2 -C 85dB or higher 95dB or higher -
Ultrathin design: 12 µm / 13 µm total thickness
High shielding performance is achieved with a total thickness of only 12 µm for SF-PC3900R1 -C and 13 µm for SF-PC3900R2 -C.
Main specifications
| Item | SF-PC®3900R1 -C | SF-PC®3900R2 -C | |
|---|---|---|---|
| Transfer film thickness | 50 µm | 50 µm | |
| Product thickness (after pressing) | 12 µm | 13 µm | |
| Structure thickness (after pressing) | Protection layer thickness | 6 µm | 6 µm |
| Shielding layer thickness | 1 µm | 2 µm | |
| Anisotropic conductive adhesive layer thickness | 5 µm | 5 µm | |
| Adhesion strength | Adherend: Polyimide | 3.0 N/cm or more | 3.0 N/cm or more |
| Shelf life (refrigerated) | 6 months | 6 months | |
Examples of Use
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Supports high-speed interfaces
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Enables ultrathin FPC designs while maintaining high shielding performance
Reference data
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Electric-field shielding effectiveness
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Magnetic-field shielding effectiveness
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Shielding effectiveness(coaxial tube method, 7mm coaxial tube)
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Shielding effectiveness(waveguide method, 26.5GHz)
* All data and numerical values shown above are measured values and are not guaranteed values.
