High-flexibility FPC

Features

Capable of up to 10 million bends (R = 5 mm).

Specifications (general performance)

• Flexing characteristics of more than 10 million times at R-5.0 mm.
• Supports high-speed transmission in Gpbs or higher ranges with low loss.
• Flexible and has high reliability.

Specifications (electrical performance)

Item	Conditions	Test result
Resistance test per bump	Normal temperature/Normal humidity	6 mΩ max.
Temperature and humidity cycle test	-55°C to 125°C, 1000 cycles	Resistance change rate within 10%
High-temperature retention test	85℃, 1,000 h	Resistance change rate within 10%
Low-temperature retention test	-40℃, 1,000 h	Resistance change rate within 10%
High-temperature constant-humidity test	85℃, 90% (RH), 1,000 h	Resistance change rate within 10%
Ion migration test	40℃, 90% (RH), 60 VDC, 1,000 h	No abnormality
Copper foil pull-off strength test	90 peels (copper thickness: 35 μm)	0.8 kN/m min.
Soldering heat resistance test	260℃, 20 S	No abnormality
Inductance (1 GHz)	Bridge method	2.8
Dielectric loss tangent (1 GHz)	Bridge method	0.0025
Water absorption rate	23℃, 24 h	0.04% max.
Thermal expansion coefficient	Thermomechanical analysis (TMA)	Vertical direction: 17 ppm
		Lateral direction: 17 ppm

 

R = 5.0 mm; More than 10 million times

Evaluation conditions: Clearance: 10 mm (R=5); Stroke: 80±1 mm; Speed: 35 times/min.

 

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