• VT-90H(P) High Performance Polyimide

    UL Approval: E214381 Version: 17/12/2024 /40/41/43

    General Information

    VT-90H(P) is unique blend of pure polyimide resin and micro-fine proprietary fillers results in superior performance for demanding applications. Compared to conventional polyimide systems, VT-90H(P) has a lower Z-axis expansion and Thermal Conductivity = 0.6 W/mK best-in-class. VT-90H(P) reduces resin cracking and wicking in designs with high density plated through holes and vias. VT-90H(P) prepreg has resin flow characteristics and pressed thickness matching standard polyimides.

    Application

    VT-90H(P) is unique blend of pure polyimide resin and micro-fine proprietary fillers results in superior performance for demanding applications. Compared to conventional polyimide systems, VT-90H(P) has a lower Z-axis expansion and Thermal Conductivity = 0.6 W/mK best-in-class. VT-90H(P) reduces resin cracking and wicking in designs with high density plated through holes and vias. VT-90H(P) prepreg has resin flow characteristics and pressed thickness matching standard polyimides.

    Storage Condition and Shelf Life

    Prepreg
    Storage Condition Temperature < 23℃ (73℉) < 5℃ (41℉)
    Relative Humidity < 55% /
    Shelf Life 3 Months 6 Months

    The prepreg exceeding shelf life should be retested.

    Properties Sheet

    Properties Test Method Units Typical Value
    Thermal Properties
    Tg TMA IPC-TM-650 2.4.24 ℃ 250
    Td ASTM D3850 ℃ 410
    T260 IPC-TM-650 2.4.24.1 Minute >60
    T288 IPC-TM-650 2.4.24.1 Minute >60
    Thermal Stress @ 288˚C IPC-TM-650 2.4.13.1 Second >600
    Z-axis CTE Before Tg IPC-TM-650 2.4.24 ppm/˚C 35
    After Tg ppm/˚C 80
    Total Expansion (50~260˚C) % ≤1.0
    X-Y CTE IPC-TM-650 2.4.41 ppm/˚C 11~12
    Electrical Properties
    Dk @ 1MHz RC 54% IPC-TM-650 2.5.5.9 - 4.20
    Df @ 1MHz RC 54% IPC-TM-650 2.5.5.9 - 0.009
    Volume Resistivity After Moisture IPC-TM-650 2.5.17.1 MΩ-cm 5.00E+08
    E-24/125 MΩ-cm 5.00E+06
    Surface Resistivity After Moisture IPC-TM-650 2.5.17.1 MΩ 5.00E+07
    E-24/125 MΩ 5.00E+06
    Electrical Strength IPC-TM-650 2.5.6.2 Volt/mil (KV/mm) 1372 (54)
    Arc Resistance ASTM D495 Second 150
    Mechanical Properties
    Peel Strength (1oz) As received IPC-TM-650 2.4.8 lb/in (N/mm) 6~9 (1.05~1.58)
    After thermal stress lb/in (N/mm) 6~9 (1.05~1.58)
    Physical Properties
    Moisture Absorption IPC-TM-650 2.6.2.1 % 0.19
    Thermal Conductivity ISO22007-2 W/mk 0.60
    Flammability UL-94 Rating HB

    Note: All test data provided are typical values and are not intended to be specification value. Disclaimer: The information and data contained in this technical literature is based on data and knowledge correct at the time of publishing/printing and is believed to be accurate and is offered in good faith for the benefit of the user. The user should make his own tests to verify the suitability of this product for any application before its use. All data are typical values only and subject to change without notice.

    Availability

    PP Type Resin Content (%) Pressed Thickness (mm)
    1067 70 2.4
    1086 64 3.2
    3313 59 4.4
    2116 54 5.0

    Press Condition

    Item VT-90H(P)
    Heating rate of material 2.5~4.5ºC/min (4.5~8ºF/min)
    Cure Temperature ≥218ºC
    Cure Time >200min
    Vacuum should be continued until over 140ºC (284ºF) for material
    Pressure: Start with 100psi, Full pressure should be 350 psi or above.
    Cold Press: Water cooling at 100psi for more than 60 minutes.

    Contact Ventec technical service to discuss the specific condition.

    Download TDS Datasheet