Noise resistant applications Home > Product > Flexible Wiring Boards > Noise resistant applications
Slit
Slit
FPC with slits for greater flexibility in wiring routing
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Features
• Slits in FPCs improve wiring flexibility
• Cables can be bundled with tape.
• Bundling cables also makes it easier to dissipate heat from the CPU.
• Possible to design differential pair lines with low loss, low crosstalk, and high electromagnetic field coupling.
• Cable length: Up to 460 mm.
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 Specifications (electrical performance)

Item

Conditions

Test result

Resistance test per bump

Normal temperature/Normal humidity

6 m¥Ø max.

Temperature and humidity cycle test

-55¡ÆC to 125¡ÆC, 1000 cycles

Resistance change rate within 10%

High-temperature retention test

85¡É, 1,000 h

Resistance change rate within 10%

Low-temperature retention test

-40¡É, 1,000 h

Resistance change rate within 10%

High-temperature constant-humidity test

85¡É, 90% (RH), 1,000 h

Resistance change rate within 10%

Ion migration test

40¡É, 90% (RH), 60 VDC, 1,000 h

No abnormality

Copper foil pull-off strength test

90 peels (copper thickness: 35 ¥ìm)

0.8kN/m min.

Soldering heat resistance test

260¡É, 20S

No abnormality

Inductance (1 GHz)

Bridge method

2.8

Dielectric loss tangent (1 GHz)

Bridge method

0.0025

Water absorption rate

23¡É, 24 h

0.04% max.

Thermal expansion coefficient

Thermomechanical analysis (TMA)

Vertical direction: 17 ppm

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Lateral direction: 17 ppm

 

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