Pyralux® AC

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Pyralux® AC all-polyimide single-sided copper-clad laminate


Pyralux® AC all-polyimide single-sided copper-clad laminate features an adhesiveless, all‑polyimide dielectric layer. It is ideal for single-sided flex applications that demand high‑density circuitry and chip‑on‑flex attachment. Offered with a variety of conductor types.

Features & Benefits

  • Electrodeposited (ED) or rolled-annealed (RA) Cu foil available with various surface treatments
  • Excellent thermal resistance from all-polyimide dielectric
  • Reliability during flex and bending enabled by excellent peel strength between dielectric and conductor

Pyralux® AC Technical Documents

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    Pyralux® AC Product Series Properties

    Property Group Property Name Value Test Method
    Dielectric Dielectric Constant (Dk) 1MHz 3.7 ASTM D2520 / IPC-TM-650 2.5.5.3
    Dielectric Strength (V/μm) >320 ASTM D149
    Loss Tangent (Df) 1MHz 0.003 ASTM D2520 / IPC-TM-650 2.5.5.3
    Electrical / Insulation Surface Resistance (Ω) >1x10^12 IPC-TM-650 2.5.17
    Volume Resistivity (Ω・cm) >1x10^16 IPC-TM-650 2.5.17
    Mechanical Elongation at Break (%) >19 IPC-TM-650 2.4.19
    Tensile Modulus (Gpa) >7.5 IPC-TM-650 2.4.19

    Pyralux® AC Product Properties

    Property Name Form Factor Package Adhesive Type Copper Thickness (μm) Copper Thickness (oz) Copper Type Dielectric Thickness (μm) Dielectric Thickness (mil)
    AC091200EN Single-sided FCCL Roll Adhesive-less all polyimide 9 0.25 ED 12.0 0.50
    AC092500EN Single-sided FCCL Roll Adhesive-less all polyimide 9 0.25 ED 25.0 1.00
    AC121200EM Single-sided FCCL Roll Adhesive-less all polyimide 12 0.33 ED 12.0 0.50
    AC121200RY Single-sided FCCL Roll Adhesive-less all polyimide 12 0.33 RA 12.0 0.50
    AC122000EM Single-sided FCCL Roll Adhesive-less all polyimide 12 0.33 ED 20.0 0.80
    AC122500EM Single-sided FCCL Roll Adhesive-less all polyimide 12 0.33 ED 25.0 1.00
    AC122500RY Single-sided FCCL Roll Adhesive-less all polyimide 12 0.33 RA 25.0 1.00
    AC125000RF Single-sided FCCL Roll Adhesive-less all polyimide 12 0.33 RA 50.0 2.00
    AC181200EM Single-sided FCCL Roll Adhesive-less all polyimide 18 0.50 ED 12.0 0.50
    AC181200RY Single-sided FCCL Roll Adhesive-less all polyimide 18 0.50 RA 12.0 0.50
    AC182000EM Single-sided FCCL Roll Adhesive-less all polyimide 18 0.50 ED 20.0 0.80
    AC182000RY Single-sided FCCL Roll Adhesive-less all polyimide 18 0.50 RA 20.0 0.80
    AC182500EM Single-sided FCCL Roll Adhesive-less all polyimide 18 0.50 ED 25.0 1.00
    AC182500RY Single-sided FCCL Roll Adhesive-less all polyimide 18 0.50 RA 25.0 1.00
    AC185000RY Single-sided FCCL Roll Adhesive-less all polyimide 18 0.50 RA 50.0 2.00
    AC185000RF Single-sided FCCL Roll Adhesive-less all polyimide 18 0.50 RA 50.0 2.00
    AC351200RHV Single-sided FCCL Roll Adhesive-less all polyimide 35 1.00 RA 12.0 0.50
    AC352500EY Single-sided FCCL Roll Adhesive-less all polyimide 35 1.00 ED 25.0 1.00
    AC352500RF Single-sided FCCL Roll Adhesive-less all polyimide 35 1.00 RA 25.0 1.00
    AC352500RHV Single-sided FCCL Roll Adhesive-less all polyimide 35 1.00 RA 25.0 1.00
    AC354500EY Single-sided FCCL Roll Adhesive-less all polyimide 35 1.00 ED 45.0 1.80
    AC355000RF Single-sided FCCL Roll Adhesive-less all polyimide 35 1.00 RA 50.0 2.00
    AC702500RF Single-sided FCCL Roll Adhesive-less all polyimide 70 2.00 RA 25.0 1.00