As smartphones have advanced, TATSUTA’s electromagnetic shielding films have enhanced functionality. TATSUTA’s WILMINA® offers a diverse product line addressing EMI and EMS needs, faster communication speeds, and dynamic bending.
Solution
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Solution 01Simplification of Cu foil-based shielding film processes
●Appearance after moisture absorption and reflowing (bake-less)
As development of the 5G communications network continues to progress globally, there is an increasing demand for shielding films high in shield performance for FPC in electronic devices.
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Solution 02High density wiring design of FPC
●The FGF demonstrates its ability because the shield effectiveness can be improved by multi-point grounding of GND.
In order to maximize the shield effect, optimum grounding (multiple point ground) is required, while on the other hand it is difficult to secure a sufficient GND area due to trends toward downsizing and high density wiring of FPC.
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Solution 03Noise suppression measures for FPC edge faces
●Electromagnetic field strength distribution measurement results (@2.5GHz)
Smartphones and other advanced electronic devices are becoming thinner by replacing coaxial cables with FPCs. On the other hand, FPCs, like coaxial cables, are shielded on the periphery.‥‥‥‥‥
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Solution 04Highly bendable shielded FPC
●Folding (MIT) test results
With the advent of foldable smartphones, repeated bending property is required of FPC in electronic devices. Also,
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Related Product Lines
EMI shielding film
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Shielding film for rigid-flex board（high step/uneven surface）
WILMINA®SF-FT®6010-US-C
SF-FT®6015-US-CUL94 VTM-0（Combination with Kapton 50H）
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※Kapton® is a registered trademark of DuPont Corporation. -
Shielding film for high-speed signal transmission FPC
(high shield performance/shape retention)WILMINA®SF-PC®3100-C
SF-PC®3300-CUL94 V-0 (combined with Kapton50H)
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* Kapton® is a registered trademark of DuPont in the U.S. -
Shielding film for high-speed signal transmission FPC
(bake-less)WILMINA®SF-PC®3500P2-C
UL94 VTM-0 (combined with Kapton50H)
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* Kapton® is a registered trademark of DuPont in the U.S. -
Shielding film for high speed transmission FPCs（Ultra thin and high shielding effect）
WILMINA®SF-PC®3900R1-C
SF-PC®3900R2-CUL94 VTM-0（Combination with Kapton 50H）
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※Kapton® is a registered trademark of DuPont Corporation -
Shielding film for high-speed signal transmission FPC
(capable of small-diameter GND)WILMINA®SF-PC®4300-C
UL94 VTM-0 to be certified
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* Kapton® is a registered trademark of DuPont in the U.S. -
Shielding film for high-speed signal transmission FPC
(wrapping)WILMINA®SF-PC®4300-Z2-C
UL94 VTM-0 (combined with Kapton50H)
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* Kapton® is a registered trademark of DuPont in the U.S. -
Shielding film for high-speed signal transmission
FPC(standard/ultrathin)WILMINA®SF-PC®8600(-C)
SF-PC®8900(-C)UL94 SF-PC®8600(-C): V-0/SF-PC®8900(-C): VTM-0 (combined with Kapton50H)
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* Kapton® is a registered trademark of DuPont in the U.S. -
Shielding film for high-speed signal transmission FPC
(high bending property)WILMINA®SF-FT®8905-C
UL94 VTM-0 to be certified (combined with Kapton50H)
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* Kapton® is a registered trademark of DuPont in the U.S. -
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Conductive adhesive
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Thermal setting conductive bonding film
WILMINA®CBF®300/-W6
CBF®800-D40/-D60UL94 VTM-0 (combined with Kapton200H) * CBF®800-D40/-D60
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* Kapton® is a registered trademark of DuPont in the U.S. -
Thermal setting conductive bonding film
(high reliability)WILMINA®CBF®900-D40/-D60
UL94 VTM-1 (combined with Kapton200H)
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* CBF®900-D40/-D60
* Kapton® is a registered trademark of DuPont in the U.S.
GND reinforcement
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Free grounding film
(for shielding film)FGF®-500/FGF®-800
UL94 V-0 (combined with Kapton50H)
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* Kapton® is a registered trademark of DuPont in the U.S. -
Free grounding film
(for Cu foil shielding film)FGF®-L100
UL94 V-0 (combined with Kapton50H)
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* Kapton® is a registered trademark of DuPont in the U.S. -
Free grounding film
(non-conductive adhesive)NFGF-100
UL94 V-0 (combined with Kapton50H)
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* Kapton® is a registered trademark of DuPont in the U.S. -
Free ground bonding film (for shielding film)
FGBF®-700
UL94 V-0 (combined with Kapton200H)
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* Kapton® is a registered trademark of DuPont in the U.S.
Peripheral material (non-conductive)
“WILMINA”, ”SF-PC”, ”SF-FT”, ”SF-CA”, ”CBF”, ”FGF”, ”FGBF”, ”TEFS” are trademarks or
registered trademarks of TATSUTA ELCTRIC WIRE & CABLE CO., LTD in Japan, the United States and other countries.
