Isola I-Tera MT40

I-Terra MT laminate materials exhibit exceptional electrical properties which are very stable over a broad frequency and temperature range. I-Terra MT is suitable for many of today’s high speed digital and RF/microwave printed circuit designs. I-Terra MT features a Dielectric Constant (Dk) that is stable between -55C and 125C, up to 20 GHz. In addition, I-Terra MT offers a lower dissipation factor (Df) of 0.0036 making it a cost effective alternative to PTFE and other commercial microwave and high speed digital laminate materials. I-Terra MT laminate materials are currently being offered in both laminate and prepreg form in typical thicknesses and standard panel sizes. This provides a complete materials solution package for high-speed digital multilayer, hybrid, RF/microwave, multilayer and double-sided printed circuit designs. I-terra MT does not require any special through hole treatments commonly needed when processing PTFE-based laminate materials.


  • High thermal performance – Tg:200C (DSC), Td:360C (TGA@5% wt loss), Low CTE in the Z-axis 2.8% (50C-260C)
  • T260: >60 minutes
  • T288: >60 minutes
  • RoHS Compliant
  • Electrical properties – Dk: 3.30, Df: 0.0036, Typical electrical properties over a broad frequency and temperature range per IPC-TM-650-
  • Core Material Standard Availability – Thickness 0.0025″-0.018″, 0.030″ and 0.060″, Available in full size sheet or panel form
  • Prepreg Standard Availability – Roll or panel form, Tooling of prepreg panels available
  • Copper Foil Type Availability – Standard HTE Grade 3, RTF (Reverse Treat Foil), VLP-2 (2micron)
  • Copper weights – 1/2, 1 and 2 oz (18, 35 and 70 micron) available, Heavier copper available upon request, Thinner copper foil available upon request
  • Glass Fabric Availability – Standard E-glass, Square weave glass fabric available, Spread glass fabric available
  • Industry Approvals – UL 94 V-0, UL qualified – 130 MOT, Non-ANSI, IPC-4103/17