I-Tera® MT40 (RF/MW)
Very Low-Loss Laminate
I-Tera® MT40 laminate materials exhibit exceptional electrical properties which are very stable over a broad frequency and temperature range.
Thermal Performance |
Electrical Performance |
Industry Approvals |
Tg:
215°C
Td: 360°C |
Dk:
3.38 / 3.45 / 3.60 / 3.75
Df: 0.0028 - 0.0035 |
IPC-4103 /17
UL - File Number E41625
|
Thermal Performance
Td: 360°C
Electrical Performance
Df: 0.0028 - 0.0035
Industry Approvals
I-Tera MT40 is suitable for many of today’s high-speed digital and RF/microwave printed circuit designs. I-Tera MT40 features a dielectric constant (Dk) that is stable between -40°C and +140°C up to W-band frequencies. In addition, I-Tera MT40 offers a very low dissipation factor (Df) of 0.0028 – 0.0035 making it a cost-effective alternative to PTFE and other commercial microwave and high-speed digital laminate materials.
I-Tera MT40 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-Tera MT40 does not require any special through hole treatments commonly needed when processing PTFE-based laminate materials.
Product Features
- Industry Recognition
- UL File Number: E41625
- RoHS Compliant
- Performance Attributes
- CAF resistant
- Lead-free assembly compatible
- Processing Advantages
- FR-4 process compatible
- Dimensional stability
- Multiple reflow capable
- Multiple lamination cycles
Production & Manufacturing
Currently manufactured in Asia, Europe
Product Availability
- Standard Material Offering: Laminate
- 10, 20, 30, 60 mil (0.25, 0.51, 0.76, 1.5 mm)
- Copper Foil Type
- HTE Grade 3
- HVLP (VLP2) ≤2.5 micron Rz JIS
- RTF (Reverse Treat Foil)
- Embedded resistor foil
- Copper Weight
- ½, 1 and 2 oz (18, 35 and 70 µm) available
- Thinner copper foil available
- Glass Fabric Availability
- Square weave glass
- Mechanically spread glass
Property | Typical Value | Units | Test Method | |
---|---|---|---|---|
Metric (English) | IPC-TM-650 (or as noted) | |||
Glass Transition Temperature (Tg) by DSC | 215 | °C | 2.4.25C | |
Glass Transition Temperature (Tg) by DMA | 230 | °C | 2.4.24.4 | |
Glass Transition Temperature (Tg) by TMA | 210 | °C | 2.4.24C | |
Decomposition Temperature (Td) by TGA @ 5% weight loss | 360 | °C | 2.4.24.6 | |
Time to Delaminate by TMA (Copper removed) |
A. T260 B. T288
|
>60 | Minutes | 2.4.24.1 |
Z-Axis CTE |
A. Pre-Tg B. Post-Tg C. 50 to 260°C, (Total Expansion)
|
55 290 2.8
|
ppm/°C ppm/°C %
|
2.4.24C |
X/Y-Axis CTE | Pre-Tg | 12 | ppm/°C | 2.4.24C |
Thermal Conductivity | 0.61 | W/m·K | ASTM E1952 | |
Thermal Stress 10 sec @ 288ºC (550.4ºF) |
A. Unetched B. Etched
|
Pass | Pass Visual | 2.4.13.1 |
Dk, Permittivity |
A. @ 10 GHz B. @ 10 GHz C. @ 10 GHz D. @ 10 GHz
|
3.38 3.45 3.60 3.75
|
— | 2.5.5.5 |
Df, Loss Tangent |
A. @ 10 GHz B. @ 10 GHz C. @ 10 GHz D. @ 10 GHz
|
0.0028 0.0031 0.0035 0.0035
|
— | Bereskin Stripline |
Volume Resistivity | C-96/35/90 | 1.33 x 107 | MΩ-cm | 2.5.17.1 |
Surface Resistivity | C-96/35/90 | 1.33 x 105 | MΩ | 2.5.17.1 |
Dielectric Breakdown | 45.4 | kV | 2.5.6B | |
Arc Resistance | 139 | Seconds | 2.5.1B | |
Electric Strength (Laminate & laminated prepreg) | 45 (1133) | kV/mm (V/mil) | 2.5.6.2A | |
Comparative Tracking Index (CTI) | 3 (175-249) | Class (Volts) |
UL 746A ASTM D3638 |
|
Peel Strength | 1 oz. EDC foil |
1.0 (5.7) |
N/mm (lb/inch) | 2.4.8C |
Flexural Strength |
A. Length direction B. Cross direction
|
490 (71.0) 400 (58.0)
|
MPa (kpsi) | 2.4.4B |
Tensile Strength |
A. Length direction B. Cross direction
|
269 (39.0) 241 (35.0)
|
MPa (kpsi) | ASTM D3039 |
Poisson's Ratio |
A. Length direction B. Cross direction
|
0.234 0.222
|
— | ASTM D3039 |
Moisture Absorption | 0.1 | % | 2.6.2.1A | |
Flammability (Laminate & laminated prepreg) | V-0 | Rating | UL 94 | |
Relative Thermal Index (RTI) | 130 | °C | UL 796 | |
The data, while believed to be accurate and based on analytical methods considered to be reliable, is for information purposes only. Any sales of these products will be governed by the terms and conditions of the agreement under which they are sold. |
NOTE
Visit our site http://www.isola-group.com for more details.
Revisions:
A: Initial release - 4/17
B: Corrected units for Flexural and Tensile Strength - 8/18
C: Change MOT to RTI 5/19
D: Changed VLP2 to HVLP to align with common industry terms 4/21
E: Changed TMA Tg to 210C, DSC Tg to 215C and added DMA at 230C based on long term data 9/22
Core Data
Thickness (inch) | Thickness (mm) | Dielectric Constant (DK)/ Dissipation Factor (DF) | ||||
---|---|---|---|---|---|---|
2 GHz | 5 GHz | 10 GHz | 15 GHz | 20 GHz | ||
0.005 | 0.127 | 3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
0.010 | 0.254 | 3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
0.020 | 0.508 | 3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
0.030 | 0.762 | 3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
0.040 | 1.016 | 3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
0.060 | 1.524 | 3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
3.38 0.0028 |
0.005 | 0.127 | 3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
0.0066 | 0.168 | 3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
0.010 | 0.254 | 3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
0.020 | 0.508 | 3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
0.030 | 0.762 | 3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
0.060 | 1.524 | 3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
3.45 0.0030 |
0.005 | 0.127 | 3.60 0.0032 |
3.60 0.0032 |
3.60 0.0032 |
3.60 0.0032 |
3.60 0.0032 |
0.010 | 0.254 | 3.60 0.0032 |
3.60 0.0032 |
3.60 0.0032 |
3.60 0.0032 |
3.60 0.0032 |
0.020 | 0.508 | 3.60 0.0032 |
3.60 0.0032 |
3.60 0.0032 |
3.60 0.0032 |
3.60 0.0032 |
0.010 | 0.254 | 3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
0.0133 | 0.338 | 3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
0.020 | 0.508 | 3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
0.030 | 0.762 | 3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
3.75 0.0033 |
NOTE
Revisions:
A-Original Release - 4/17
B-Added 10 mil 3.60 Dk and 30 mil 3.45 Dk - 2/20
Resource Title & Summary | Date Updated |
---|---|
I-Tera MT40 Laminate Supplemental | 03/20/2024 |
I-Tera MT40 (RF/MW) Processing Guide | |
I-Tera MT40 Laminate Safety Data Sheet | 01/22/2024 |
I-Tera MT 40 Laminate RoHS Declaration | 03/20/2024 |
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