Pyralux® AK

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Pyralux® AK all-polyimide double-sided copper-clad laminate


Pyralux® AK all-polyimide double-sided copper-clad laminate composed of an all‑polyimide composite, with polyimide film bonded to copper foil. The material system is designed to deliver advanced material performance, excellent temperature resistance, and high reliability. Available in multiple dielectric and copper thicknesses. 

Features & Benefits

  • Excellent thermal resistance because of all polyimide foundation
  • High Cu-polyimide adhesion strength
  • Good flex & bending performance
  • Excellent electric thickness tolerance/electrical performance
  • Low coefficient of thermal expansion (CTE) for rigid flex multilayers

Applications

  • Multilayer flexible and rigid flex circuit constructions
  • Low CTE rigid flex multilayer designs
  • Flexible circuits requiring high temperature resistance
  • High reliability flexible and rigid flex applications with repeated flexing or bending

Pyralux® AK Technical Documents

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    Pyralux® AK Product Series Properties

    Property Group Property Name Value Test Method
    Dielectric Dielectric Constant (Dk) 1MHz 3.4 ASTM D2520 / IPC-TM-650 2.5.5.3
    Loss Tangent (Df) 1MHz 0.004 ASTM D2520 / IPC-TM-650 2.5.5.3
    Electrical / Insulation Volume Resistivity (Ω・cm) >1x10^16 IPC-TM-650 2.5.17
    Environmental Moisture Absorption (%) <1.0 IPC-TM-650 2.6.2
    Mechanical Elongation at Break (%) >50 IPC-TM-650 2.4.19
    Tensile Modulus (Gpa) >4.8 IPC-TM-650 2.4.19

    Pyralux® AK Product Properties

    Property Name Form Factor Package Adhesive Type Copper Thickness (μm) Copper Thickness (oz) Copper Type Dielectric Thickness (μm) Dielectric Thickness (mil)
    AK071207EL Double-sided FCCL Roll Polyimide 7 0.20 ED 12.0 0.50
    AK121212EM Double-sided FCCL Roll Polyimide 12 0.33 ED 12.0 0.50
    AK121212RY Double-sided FCCL Roll Polyimide 12 0.33 RA 12.0 0.50
    AK121212RF Double-sided FCCL Roll Polyimide 12 0.33 RA 12.0 0.50
    AK122512EM Double-sided FCCL Roll Polyimide 12 0.33 ED 25.0 1.00
    AK122512EP Double-sided FCCL Roll Polyimide 12 0.33 ED 25.0 1.00
    AK122512RY Double-sided FCCL Roll Polyimide 12 0.33 RA 25.0 1.00
    AK122512RF Double-sided FCCL Roll Polyimide 12 0.33 RA 25.0 1.00
    AK125012EM Double-sided FCCL Roll Polyimide 12 0.33 ED 50.0 2.00
    AK125012EP Double-sided FCCL Roll Polyimide 12 0.33 ED 50.0 2.00
    AK125012RY Double-sided FCCL Roll Polyimide 12 0.33 RA 50.0 2.00
    AK125012RF Double-sided FCCL Roll Polyimide 12 0.33 RA 50.0 2.00
    AK181218RY Double-sided FCCL Roll Polyimide 18 0.50 RA 12.0 0.50
    AK181218RF Double-sided FCCL Roll Polyimide 18 0.50 RA 12.0 0.50
    AK182518EM Double-sided FCCL Roll Polyimide 18 0.50 ED 25.0 1.00
    AK182518RY Double-sided FCCL Roll Polyimide 18 0.50 RA 25.0 1.00
    AK182518RF Double-sided FCCL Roll Polyimide 18 0.50 RA 25.0 1.00
    AK183818EM Double-sided FCCL Roll Polyimide 18 0.50 ED 38.0 1.50
    AK185018EM Double-sided FCCL Roll Polyimide 18 0.50 ED 50.0 2.00
    AK185018RG Double-sided FCCL Roll Polyimide 18 0.50 RA 50.0 2.00
    AK185018RY Double-sided FCCL Roll Polyimide 18 0.50 RA 50.0 2.00
    AK185018RF Double-sided FCCL Roll Polyimide 18 0.50 RA 50.0 2.00
    AK352535EZ Double-sided FCCL Roll Polyimide 35 1.00 ED 25.0 1.00
    AK352535R Double-sided FCCL Roll Polyimide 35 1.00 RA 25.0 1.00
    AK355035EZ Double-sided FCCL Roll Polyimide 35 1.00 ED 50.0 2.00
    AK355035R Double-sided FCCL Roll Polyimide 35 1.00 RA 50.0 2.00
    AK702018EFK Double-sided FCCL Roll Polyimide 70 2.00 ED 20.0 0.80
    AK705070EM Double-sided FCCL Roll Polyimide 70 2.00 ED 50.0 2.00
    AK705070RF Double-sided FCCL Roll Polyimide 70 2.00 RA 50.0 2.00