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Ultra-thin Double-sided FPC

A circuit board which reduces the bias force with a thin base Pl to combine improved flexibility with double-sided micro line processing.

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Business Hours:9:00~17:30 (Japan Time)

Except for Sat, Sun, and Holidays


  • Low repulsion due to thin base Pl
  • Higher density with laser Via
  • Finer pitch due to thin copper foil


Stiffness Properties

Connection Reliability (Oil Dip Test)

Design Guide

Type Base material Min.product total thickness Min.
TH diameter
Land diameter
Cu thickness
(including PTH)
Pl thickness Front side Back side
Normal Double-sided FPC 18 15~25 60.5 98.5 75 250 50/50
Ultra-thin Double-sided FPC 12 15~25 54.5 86.5 50 200 40/40


  • *The above data are results of experiment at Nitto Denko and are not applicable as standard values.

Contact Us

For inquiries about products.

Business Hours(Japan time)
9:00-17:30(Except for Sat, Sun, and Holidays)

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