VT-90H Laminate/Prepreg

UL Approval: E214381 Version: B6 19/09/2016 /40/41

General Information

  • Tg 250℃
  • High Td
  • Improved Fracture Toughness
  • Low Z-axis CTE
  • Non-Brominated Chemistry

Application

  • Chip Manufacturers
  • Engine/Flight Controls
  • Power Supply/Backplane
  • Military and Burn-in Board

Availability

  • Core Thickness: 0.002” (0.05mm) to 0.125” (3mm), available in sheet or panel form
  • Copper Foil: 1/4oz to 6oz
  • Prepregs are available in roll or panel form
  • E-Glass styles: 7628, 1506, 2113, 2313, 3313, 2116, 1080, 106 etc

Note: Double side treated copper foil and reverse copper foil are not suggested using on VT-90H laminates because the peel strength would not be as good as conventional materials.

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 /40 /41

Properties Test Method Units Specification Typical Value
Thermal Properties
Tg DSC IPC-TM-650 2.4.25 °C - -
TMA IPC-TM-650 2.4.24 °C 200 minimum 250
Td ASTM D3850 °C - 408
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 Pass 10s >1200
Z-axis CTE Before Tg IPC-TM-650 2.4.24 ppm/°C - 50
After Tg IPC-TM-650 2.4.24 ppm/°C - 145
Total Expansion (50~260°C) IPC-TM-650 2.4.24 % - 1.2
MOT UL 94 °C - 140
Electrical Properties
Dielectric Constant @ 1GHz RC 40% IPC-TM-650 2.5.5.9 - 5.4 maximum 4.05
Dissipation Factor @ 1GHz RC 40% 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+6 minimum 5.0E+8
E-24/125 IPC-TM-650 2.5.17.1 MΩ-cm 1.0E+6 minimum 5.0E+6
Surface Resistivity After Moisture Resistance IPC-TM-650 2.5.17.1 1.0E+6 minimum 5.0E+7
E-24/125 IPC-TM-650 2.5.17.1 1.0E+6 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 4 (100~175)
Arc Resistance ASTM D495 Second 120 minimum 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 IPC-TM-650 2.4.8 lb/in (N/mm) 5.14 (0.90) minimum 6~9 (1.05~1.58)
Flexural Strength Warp IPC-TM-650 2.4.4 Kpsi (MPa) 60 (415) minimum 600 (87)
Fill IPC-TM-650 2.4.4 Kpsi (MPa) 47 (325) minimum 500 (72)
Physical Properties
Moisture Absorption IPC-TM-650 2.6.2.1 % 1.0 maximum 0.28
Flammability UL-94 Rating HB minimum HB

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

Published on: 19/09/2016

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