• VT-447T Laminate/Prepreg

    UL Approval: E214381 Version: Prelim A01 18/11/2020 /127/128/130

    General Information

    • Halogen free
    • High Tg (210℃) FR4
    • CAF Resistance
    • Low Z-CTE
    • Excellent Thermal Reliability

    Application

    Mobile Phone, Smart Phone, Computer, Communication Equipment, Instrumentation, Electronic Game Machine, VCR, CPU, CSP, MCP, SD Card, DRAM, DDR, BGA, IC Packaging, etc.

    Availability

    • Core Thickness: 0.0012” (0.03mm) to 0.200” (5mm), available in sheet or panel form
    • Copper Foil: 1/7oz to 6oz
    • Prepregs are available in roll or panel form
    • E-Glass styles: 7628, 1506, 2113, 3313, 2116, 1080, 1086, 1078, 106, 1067, 1037, 1027 etc

    Note: For cores ≤ 0.005”, it is recommended to use the reverse treated copper due to the low profile. The peel strength for RT foil is ≈1-2lbs/in (0.35Kg/m) less than standard foil.

    Properties Prepreg Laminate
    Storage Condition Temperature Below 23°C (73°F) Below 5°C (41°F) Room
    Relative humidity Below 55% RH / /
    Shelf Life 3 months 6 months 24 months (airproof)

    The prepreg exceeding shelf life should be retested.

    Properties Sheet IPC-4101E /127 /128 /130 (most compliant)

    Properties Test Method Units Specification Typical Value
    Thermal Properties
    Tg TMA IPC-TM-650 2.4.24 °C - 180
    DMA IPC-TM-650 2.4.24.4 °C - 210
    Td ASTM D3850 °C 340 minimum 400
    T288 IPC-TM-650 2.4.24.1 Minute 15 minimum >60
    Thermal Stress @ 288°C IPC-TM-650 2.4.13.1 Second Pass 10s >600
    Z-axis CTE Before Tg IPC-TM-650 2.4.24 ppm/°C 60 maximum 35
    After Tg IPC-TM-650 2.4.24 ppm/°C 300 maximum 150
    Total Expansion (50~260°C) IPC-TM-650 2.4.24 % 3.0 maximum 1.80
    XY-axis CTE IPC-TM-650 2.4.24.5 ppm/°C - 11~13
    Electrical Properties
    DK @ 1GHz RC 50% IPC-TM-650 2.5.5.9 - 5.4 maximum 4.35
    DF @ 1GHz RC 50% IPC-TM-650 2.5.5.9 - 0.035 maximum 0.012
    Volume Resistivity After Moisture Resistance IPC-TM-650 2.5.17.1 MΩ-cm 1.0E+4 minimum 5.0E+8
    E-24/125 IPC-TM-650 2.5.17.1 MΩ-cm 1.0E+3 minimum 5.0E+6
    Surface Resistivity After Moisture Resistance IPC-TM-650 2.5.17.1 MΩ 1.0E+4 minimum 5.0E+7
    E-24/125 IPC-TM-650 2.5.17.1 MΩ 1.0E+3 minimum 5.0E+6
    Electrical Strength IPC-TM-650 2.5.6.2 Volt/mil (KV/mm) 762 (30) minimum 1200~1400 (54)
    Dielectric Breakdown IPC-TM-650 2.5.6 KV 40 minimum 60
    Comparative Tracking Index (CTI) ASTM D3638 Rating (Volt) - Grade 3 (175~250)
    Arc Resistance ASTM D495 Second - 195
    Mechanical Properties
    Peel Strength (1oz) As received IPC-TM-650 2.4.8 lb/in (N/mm) - 6~8 (1.05~1.4)
    After thermal stress IPC-TM-650 2.4.8 lb/in (N/mm) 6 (1.05) minimum 6~8 (1.05~1.4)
    Flexural Strength Warp IPC-TM-650 2.4.4 KPsi (MPa) 60 (415) minimum 86 (600)
    Fill IPC-TM-650 2.4.4 KPsi (MPa) 50 (345) minimum 76 (530)
    Physical Properties
    Moisture Absorption IPC-TM-650 2.6.2.1 % 0.80 maximum 0.12
    Flammability UL-94 Rating V-0 minimum V-0

    All test data provided are typical values and are not intended to be specification values.

    Published on: 18/11/2020

    Download TDS Datasheet