FFC Impedance Matching
Thermoplastic Impedance Control Film for FFCs
WILMINA®
SF-FC334-MS
Overview
As OLED and QD-OLED televisions and 4K/8K displays continue to advance, reliable high-speed signal transmission is becoming increasingly important. Flexible flat cables (FFCs) used in these devices require appropriate impedance control to maintain signal integrity.
TATSUTA’s WILMINA® SF-FC334-MS is a thermoplastic impedance control film designed for FFCs. Its mesh-patterned conductive layer enables a differential impedance of 100 Ω suitable for LVDS transmission when the film is laminated to both sides of an FFC.
The film’s thin, lightweight structure helps preserve the flexibility of FFCs, while its thermoplastic conductive adhesive allows bonding at relatively low temperatures and in a short processing time.
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● Single-Sided Lamination to an FFC
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● Wrapping the Film Around an FFC
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● Ground Connection Diagram
Without an impedance control film, the differential impedance of an FFC may deviate significantly from the target value of 100 Ω. By using a mesh-patterned conductive film and an appropriate lamination structure, the impedance can be adjusted toward the target value.
SF-FC334-MS is designed to achieve a differential impedance of 100 Ω for LVDS transmission when laminated to both sides of an FFC. Actual impedance depends on the FFC structure and processing conditions.
* All data and numerical values shown are measured results and are not guaranteed specifications.
