• VT-464LT Laminate/Prepreg

    UL Approval: E214381 Version: PreliminarA01 18/11/2020

    General Information

    • Halogen Free & High Tg
    • Low Dk & Low Loss
    • Excellent Thermal Reliability

    Application

    Handheld Equipment, High Frequency & High Speed, Satellite Communication, Navigation, GPS, CPU, CSP, MCP, SD Card, DRAM, DDR, BGA, IC Packaging, etc.

    Availability

    • Core Thickness: 0.0012” (0.05mm) 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, 1017, etc.

    Note: Note: 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

    Properties Test Method Units Specification Typical Value
    Thermal Properties
    Tg DMA IPC-TM-650 2.4.24.4 °C 170 minimum 260
    Td ASTM D3850 °C 340 minimum 430
    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 25~30
    After Tg IPC-TM-650 2.4.24 ppm/°C 300 maximum 120~140
    Total Expansion (50~260°C) IPC-TM-650 2.4.24 % 3.5 maximum 1.2~1.4
    XY-axis CTE IPC-TM-650 2.4.24 ppm/°C - 9/10
    Electrical Properties
    Dk (RC 50%) @ 1GHz IPC-TM-650 2.5.5.9 - 5.2 maximum 3.8
    @ 10GHz IPC-TM-650 2.5.5.13 - - 3.7
    Df (RC 50%) @ 1GHz IPC-TM-650 2.5.5.9 - 0.035 maximum 0.006
    @ 10GHz IPC-TM-650 2.5.5.13 - - 0.0075
    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 1.0E+4 minimum 5.0E+7
    E-24/125 IPC-TM-650 2.5.17.1 10E+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 60 minimum 195
    Mechanical Properties
    Peel Strength (1oz) As received IPC-TM-650 2.4.8 lb/in (N/mm) - 5.5 (0.96)
    After thermal stress IPC-TM-650 2.4.8 lb/in (N/mm) 4.57 (0.80) minimum 5.5 (0.96)
    Flexural Modulus Warp IPC-TM-650 2.4.24.4 GPa - 24~26
    Fill IPC-TM-650 2.4.24.4 GPa - 23~25
    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 not intended to be specification values.

    Published on: 18/11/2020

    Download TDS Datasheet