FR402

Tetrafunctional Epoxy Laminate and Prepreg

Download Data Sheet

Thermal PerformanceElectrical PerformanceIndustry Approvals
Tg
140°C
Td
320°C
Dk
4.25
Df
0.015
IPC-4101 - /21
UL - File Number E41625
FR402 consists of a modified tetrafunctional epoxy resin system engineered for multilayer applications that require performance characteristics exceeding those of difunctional epoxies.

The formulation of FR402 is designed to enhance throughput and accuracy of laser based Automated Optical Inspection (AOI) equipment. FR402 offers superior resistance to chemical and thermal degradation.

Product Attributes

Typical Market Applications

  • There are no typical market applications.

Product Features

  • Industry Recognition
    • UL File Number: E41625
    • RoHS Compliant
  • Processing Advantages
    • FR-4 process compatible
    • UV blocking and AOI fluorescence

Product Availability

  • Standard Material Offering: Laminate
    • 2 to 125 mil (0.05 to 3.2 mm)
    • Available in full size sheet or panel form
  • Copper Foil Type
    • HTE Grade 3
    • RTF (Reverse Treat Foil)
  • Copper Weight
    • ½ to 2 oz (18 to 70 µm) available
    • Heavier copper available
    • Thinner copper foil available
  • Standard Material Offering: Prepreg
    • Roll or panel form
    • Tooling of prepreg panels
  • Glass Fabric Availability
    • E-glass
    • Square weave glass

Production & Manufacturing

    PropertyTypical ValueUnitsTest Method
    Metric (English)IPC-TM-650 (or as noted)
    Glass Transition Temperature (Tg) by DSC140°C2.4.25C
    Decomposition Temperature (Td) by TGA @ 5% weight loss315°C2.4.24.6
    Time to Delaminate by TMA (Copper removed)
    A. T260
    B. T288
    30
    >5
    Minutes2.4.24.1
    Z-Axis CTE
    A. Pre-Tg
    B. Post-Tg
    C. 50 to 260°C, (Total Expansion)
    50
    250
    4.2
    ppm/°C
    ppm/°C
    %
    2.4.24C
    X/Y-Axis CTEPre-Tg15ppm/°C2.4.24C
    Thermal Conductivity.36W/mKASTM E1952
    Thermal Stress 10 sec @ 288ºC (550.4ºF)
    A. Unetched
    B. Etched
    PassPass Visual2.4.13.1
    Dk, Permittivity
    A. @ 100 MHz
    B. @ 500 MHz
    C. @ 1 GHz
    4.60
    4.27
    4.25
    2.5.5.3
    2.5.5.9
    2.5.5.5
    Df, Loss Tangent
    A. @ 100 MHz
    B. @ 500 MHz
    0.016
    0.015
    2.5.5.3
    2.5.5.9
    Dk, Permittivity@ 1 GHz0.0152.5.5.5
    Volume Resistivity
    A. C-96/35/90
    B. After moisture resistance
    C. At elevated temperature
    4.0 x 108
    7.0 x 107
    MΩ-cm2.5.17.1
    Surface Resistivity
    A. C-96/35/90
    B. After moisture resistance
    C. At elevated temperature
    3.0 x 106
    6.0 x 106
    2.5.17.1
    Dielectric Breakdown>50kV2.5.6B
    Arc Resistance120Seconds2.5.1B
    Electric Strength (Laminate & laminated prepreg)29 (1100)kV/mm (V/mil)2.5.6.2A
    Comparative Tracking Index (CTI)3 (175-249)Class (Volts)UL 746A
    ASTM D3638
    Peel Strength
    A. Low profile copper foil and very low profile copper foil all copper foil >17 μm [0.669 mil]
    B. Standard profile copper
        1. After thermal stress
        2. At 125ºC (257ºF)
        3. After process solutions

    1.05 (8.0)

    1.45 (9.0)
    1.25 (8.0)
    1.45 (9.0)
    N/mm (lb/inch)
    2.4.8C

    2.4.8.2A
    2.4.8.3
    2.4.8.3
    Flexural Strength
    A. Length direction
    B. Cross direction
    92,000
    62,300
    ksi2.4.4B
    Tensile Strength
    A. Length direction
    B. Cross direction
    60,000
    43,150
    ksiASTM D3039
    Moisture Absorption0.3%2.6.2.1A
    Flammability (Laminate & laminated prepreg)V-0RatingUL 94
    Max Operating Temperature130°CUL 796
    The data, while believed to be accurate and based on analytical methods considered to be reliable, is for information purposes only. Any sales of these products will be governed by the terms and conditions of the agreement under which they are sold.
    03/16/2017
    01/20/2017
    01/28/2014
    10/17/2012

    Webinars, Videos & Articles

    Laminate & Prepreg Manufacturing (Presentation)

    This presentation describes the process of laminate and prepreg manufacturing.

    If you have any questions about FR402, our pricing, or our support, or if you would like some general advice on using our materials, then please do call us or complete the form below. Your message will be routed directly to the product manager who will promptly reply to your inquiry.

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