I-Speed®
Low Loss, Epoxy Laminate and Prepreg
I-Speed® is a 180°C Tg FR-4 resin system for multilayer PWB applications where maximum thermal performance and reliability are required.
Thermal Performance
Td: 360°C
Electrical Performance
Df: 0.0060
I-Speed® laminate and prepreg products are manufactured with Isolas’ patentable high performance multi-functional resin system, reinforced with electrical grade (E-glass) glass fabric. This system delivers a 15% improvement in Z-axis expansion and offers 25% more electrical bandwidth (lower loss) than competitive products in this space. These properties coupled with superior moisture resistance at reflow, result in a product that bridges the gap from both a thermal and electrical perspective.
The I-Speed® resin system is laser fluorescing and UV blocking for maximum compatibility with Automated Optical Inspection (AOI) systems, optical positioning systems and photo imagable solder mask imaging.
Product Features
- Industry Recognition
- UL File Number: E41625
- Qualified to UL’s MCIL Program
- RoHS Compliant
- Performance Attributes
- Lead-free assembly compatible
- Processing Advantages
- FR-4 process compatible
- UV blocking and AOI fluorescence
- Multiple lamination cycles
- HDI technology compatible
Production & Manufacturing
Currently manufactured in Asia, North America
Product Availability
- Standard Material Offering: Laminate
- 2 to 28 mil (0.05 to 0.71 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
- Heavier copper foil available
- Thinner copper foil available
- Standard Material Offering: Prepreg
- Tooling of prepreg panels
- Moisture barrier packaging
- Glass Fabric Availability
- E-glass
- 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 | 180 | °C | 2.4.25C | |
Glass Transition Temperature (Tg) by DMA | 195 | °C | 2.4.24.4 | |
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)
|
45 230 2.5
|
ppm/°C ppm/°C %
|
2.4.24C |
X/Y-Axis CTE | Pre-Tg | 16 | ppm/°C | 2.4.24C |
Thermal Conductivity | 0.4 | 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. @ 1 GHz B. @ 2 GHz C. @ 5 GHz D. @ 10 GHz
|
3.65 3.64 3.63 3.63
|
— |
2.5.5.9 Bereskin Stripline Bereskin Stripline Bereskin Stripline
|
Df, Loss Tangent |
A. @ 1 GHz B. @ 2 GHz C. @ 5 GHz D. @ 10 GHz
|
0.0057 0.0059 0.0059 0.0060
|
— |
2.5.5.9 Bereskin Stripline Bereskin Stripline Bereskin Stripline
|
Volume Resistivity |
A. After moisture resistance B. At elevated temperature
|
4.4 x 107 9.4 x 107
|
MΩ-cm | 2.5.17.1 |
Surface Resistivity |
A. After moisture resistance B. At elevated temperature
|
2.6 x 106 2.1 x 108
|
MΩ | 2.5.17.1 |
Dielectric Breakdown | >50 | kV | 2.5.6B | |
Arc Resistance | 137 | Seconds | 2.5.1B | |
Electric Strength (Laminate & laminated prepreg) | 70 (1741) | kV/mm (V/mil) | 2.5.6.2A | |
Comparative Tracking Index (CTI) | 2 (250-399) | Class (Volts) |
UL 746A ASTM D3638 |
|
Peel Strength |
A. Standard profile copper 1. After thermal stress 2. After thermal stress 3. After process solutions
|
1.14 (6.5) 0.96 (5.5) 0.90 (5.1)
|
N/mm (lb/inch) |
2.4.8C 2.4.8.2A 2.4.8.3
|
Flexural Strength |
A. Length direction B. Cross direction
|
462 (67.0) 427 (62.0)
|
MPa (kpsi) | 2.4.4B |
Tensile Strength |
A. Length direction B. Cross direction
|
330 (48.3) 254 (35.6)
|
MPa (kpsi) | ASTM D3039 |
Young's Modulus |
A. Length direction B. Cross direction
|
2868 2730
|
ksi |
ASTM D790-15e2
|
Poisson's Ratio |
A. Length direction B. Cross direction
|
0.173 0.152
|
— | ASTM D3039 |
Moisture Absorption | 0.061 | % | 2.6.2.1A | |
Flammability (Laminate & laminated prepreg) | V-0 | Rating | UL 94 | |
Relative Thermal Index (RTI) | 130 | °C | — | |
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
Revisions:
A: Initial release - 4/17
B: Corrected units for Flexural and Tensile Strength - 8/18
C: Removed Low Dk glass option - 10/18
D: Change MOT to RTI - 5/19
E: Revised CTI to 2 - 1/21
F: Changed VLP2 to HVLP to align with common industry terms 4/21
G: Corrected data sheet Df values to align with Construction table values 12/22
H: Added construction option to 28 mils and added DMA Tg- 3/24
I: Modified alpha 1 CTE from 60 to 45 ppm/C and overall from 50-260C from 2.7% to 2.5% (6x2116 30 mil data) 8/24
Core Data
Construction | Resin Content % | Offering | Thickness (inch) | Thickness (mm) | Dielectric Constant (DK)/ Dissipation Factor (DF) | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
100 MHz | 500 MHz | 1 GHz | 2 GHz | 5 GHz | 10 GHz | 15 GHz | 20 GHz | |||||
1x1035 | 67.0% | Standard | 0.0020 | 0.051 | 3.57 0.0048 |
3.56 0.0052 |
3.56 0.0057 |
3.55 0.0059 |
3.55 0.0059 |
3.55 0.0059 |
3.55 0.0059 |
3.55 0.0059 |
1x1067 | 72.0% | Standard | 0.0025 | 0.064 | 3.47 0.0047 |
3.46 0.0051 |
3.46 0.0056 |
3.45 0.0058 |
3.45 0.0058 |
3.45 0.0059 |
3.45 0.0059 |
3.45 0.0059 |
1x1080 | 66.0% | Standard | 0.0030 | 0.076 | 3.59 0.0048 |
3.58 0.0052 |
3.58 0.0057 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
1x1086 | 62.0% | Standard | 0.0030 | 0.076 | 3.68 0.0049 |
3.67 0.0053 |
3.67 0.0058 |
3.66 0.0059 |
3.66 0.0059 |
3.66 0.0060 |
3.66 0.0060 |
3.66 0.0060 |
2x1067 | 62.0% | Standard | 0.0035 | 0.089 | 3.68 0.0049 |
3.67 0.0053 |
3.67 0.0058 |
3.66 0.0059 |
3.66 0.0059 |
3.66 0.0060 |
3.66 0.0060 |
3.66 0.0060 |
1x1078 | 69.5% | Standard | 0.0035 | 0.089 | 3.52 0.0047 |
3.51 0.0051 |
3.51 0.0057 |
3.50 0.0058 |
3.50 0.0058 |
3.50 0.0059 |
3.50 0.0059 |
3.50 0.0059 |
1x3313 | 52.0% | Standard | 0.0035 | 0.089 | 3.91 0.0052 |
3.90 0.0055 |
3.90 0.0059 |
3.89 0.0060 |
3.89 0.0060 |
3.89 0.0061 |
3.89 0.0061 |
3.89 0.0061 |
2x1035 | 67.0% | Standard | 0.0040 | 0.102 | 3.57 0.0048 |
3.56 0.0052 |
3.56 0.0057 |
3.55 0.0059 |
3.55 0.0059 |
3.55 0.0059 |
3.55 0.0059 |
3.55 0.0059 |
2x1067 | 66.0% | Alternate | 0.0040 | 0.102 | 3.59 0.0048 |
3.58 0.0052 |
3.58 0.0057 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
1x3313 | 57.0% | Alternate | 0.0040 | 0.102 | 3.79 0.0051 |
3.78 0.0054 |
3.78 0.0058 |
3.77 0.0060 |
3.77 0.0060 |
3.77 0.0060 |
3.77 0.0060 |
3.77 0.0060 |
1x2116 | 52.5% | Alternate | 0.0045 | 0.114 | 3.89 0.0052 |
3.89 0.0055 |
3.89 0.0059 |
3.88 0.0060 |
3.88 0.0060 |
3.88 0.0061 |
3.88 0.0061 |
3.88 0.0061 |
2x1067 | 69.3% | Std/Spread | 0.0045 | 0.114 | 3.53 0.0048 |
3.52 0.0052 |
3.52 0.0057 |
3.51 0.0059 |
3.51 0.0059 |
3.51 0.0059 |
3.51 0.0059 |
3.51 0.0059 |
1x2116 | 56.5% | Standard | 0.0050 | 0.127 | 3.80 0.0051 |
3.79 0.0054 |
3.79 0.0058 |
3.79 0.0060 |
3.79 0.0060 |
3.79 0.0060 |
3.78 0.0060 |
3.78 0.0060 |
2x1067 | 72.0% | Standard | 0.0050 | 0.127 | 3.47 0.0047 |
3.46 0.0051 |
3.46 0.0056 |
3.45 0.0058 |
3.45 0.0058 |
3.45 0.0059 |
3.45 0.0059 |
3.45 0.0059 |
2x1086 | 62.0% | Standard | 0.0060 | 0.152 | 3.68 0.0049 |
3.67 0.0053 |
3.67 0.0058 |
3.66 0.0059 |
3.66 0.0059 |
3.66 0.0060 |
3.66 0.0060 |
3.66 0.0060 |
2x1080 | 66.0% | Alternate | 0.0060 | 0.152 | 3.59 0.0048 |
3.58 0.0052 |
3.57 0.0057 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
2x3313 | 57.0% | Standard | 0.0080 | 0.203 | 3.79 0.0051 |
3.78 0.0054 |
3.78 0.0058 |
3.77 0.0060 |
3.77 0.0060 |
3.77 0.0060 |
3.77 0.0060 |
3.77 0.0060 |
2x2116 | 56.5% | Standard | 0.0100 | 0.254 | 3.80 0.0051 |
3.79 0.0054 |
3.79 0.0058 |
3.79 0.0060 |
3.79 0.0060 |
3.79 0.0060 |
3.78 0.0060 |
3.78 0.0060 |
3x3313 | 57.0% | Standard | 0.0120 | 0.305 | 3.79 0.0051 |
3.78 0.0054 |
3.78 0.0058 |
3.77 0.0060 |
3.77 0.0060 |
3.77 0.0060 |
3.77 0.0060 |
3.77 0.0060 |
2x2116/1x3313 | 56.6% | Standard | 0.0140 | 0.356 | 3.80 0.0051 |
3.79 0.0054 |
3.79 0.0058 |
3.79 0.0060 |
3.79 0.0060 |
3.79 0.0060 |
3.78 0.0060 |
3.78 0.0060 |
3x2116 | 53.9% | Alternate | 0.0140 | 0.356 | 3.87 0.0052 |
3.86 0.0055 |
3.86 0.0059 |
3.86 0.0060 |
3.86 0.0060 |
3.86 0.0061 |
3.86 0.0061 |
3.85 0.0061 |
4x2116 | 56.5% | Alternate | 0.0200 | 0.508 | 3.80 0.0051 |
3.79 0.0054 |
3.79 0.0058 |
3.79 0.0060 |
3.79 0.0060 |
3.79 0.0060 |
3.78 0.0060 |
3.78 0.0060 |
2x2116/2x1652 | 52.5% | Alternate | 0.0210 | 0.533 | 3.89 0.0052 |
3.89 0.0055 |
3.89 0.0059 |
3.88 0.0060 |
3.88 0.0060 |
3.88 0.0061 |
3.88 0.0061 |
3.88 0.0061 |
2x3313/3x1652 | 50.6% | Alternate | 0.0240 | 0.610 | 3.94 0.0053 |
3.94 0.0056 |
3.93 0.0059 |
3.93 0.0060 |
3.93 0.0060 |
3.93 0.0061 |
3.93 0.0061 |
3.93 0.0061 |
2x2116/3x1652 | 53.9% | Alternate | 0.0280 | 0.711 | 3.87 0.0052 |
3.86 0.0055 |
3.86 0.0059 |
3.86 0.0060 |
3.86 0.0060 |
3.86 0.0061 |
3.86 0.0061 |
3.85 0.0061 |
Prepreg Data
Glass Style | Resin content % | Offering | Thickness (inch) | Thickness (mm) | Dielectric Constant (DK)/ Dissipation Factor (DF) | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
100 MHz | 500 MHz | 1 GHz | 2 GHz | 5 GHz | 10 GHz | 15 GHz | 20 GHz | |||||
106 | 72.5% | Standard | 0.0020 | 0.0510 | 3.46 0.0047 |
3.45 0.0051 |
3.45 0.0056 |
3.44 0.0058 |
3.44 0.0058 |
3.44 0.0059 |
3.44 0.0059 |
3.44 0.0059 |
1035 | 67.0% | Alternate | 0.0020 | 0.0510 | 3.57 0.0048 |
3.56 0.0052 |
3.56 0.0057 |
3.55 0.0059 |
3.55 0.0059 |
3.55 0.0059 |
3.55 0.0059 |
3.55 0.0059 |
1067 | 66.0% | Standard | 0.0020 | 0.0510 | 3.59 0.0048 |
3.58 0.0052 |
3.58 0.0057 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
1067 | 70.0% | Standard | 0.0023 | 0.0580 | 3.51 0.0047 |
3.50 0.0051 |
3.50 0.0057 |
3.49 0.0058 |
3.49 0.0058 |
3.49 0.0059 |
3.49 0.0059 |
3.49 0.0059 |
106 | 76.0% | Standard | 0.0024 | 0.0610 | 3.39 0.0046 |
3.38 0.0050 |
3.38 0.0056 |
3.37 0.0058 |
3.37 0.0058 |
3.37 0.0058 |
3.37 0.0058 |
3.37 0.0058 |
1035 | 71.5% | Standard | 0.0024 | 0.0610 | 3.48 0.0047 |
3.47 0.0051 |
3.47 0.0056 |
3.46 0.0058 |
3.46 0.0058 |
3.46 0.0059 |
3.46 0.0059 |
3.46 0.0059 |
1067 | 72.0% | Standard | 0.0025 | 0.0640 | 3.45 0.0047 |
3.44 0.0051 |
3.44 0.0056 |
3.43 0.0058 |
3.43 0.0058 |
3.43 0.0059 |
3.43 0.0059 |
3.43 0.0059 |
1067 | 74.0% | Standard | 0.0027 | 0.0690 | 3.43 0.0046 |
3.42 0.0050 |
3.42 0.0056 |
3.41 0.0058 |
3.41 0.0058 |
3.41 0.0059 |
3.41 0.0059 |
3.41 0.0059 |
1035 | 74.5% | Standard | 0.0027 | 0.0690 | 3.42 0.0046 |
3.41 0.0050 |
3.41 0.0056 |
3.40 0.0058 |
3.40 0.0058 |
3.40 0.0059 |
3.40 0.0059 |
3.40 0.0059 |
106 | 78.5% | Alternate | 0.0027 | 0.0690 | 3.34 0.0045 |
3.33 0.0049 |
3.33 0.0055 |
3.32 0.0057 |
3.32 0.0057 |
3.32 0.0058 |
3.32 0.0058 |
3.32 0.0058 |
1035 | 77.0% | Alternate | 0.0031 | 0.0790 | 3.37 0.0045 |
3.36 0.0050 |
3.36 0.0056 |
3.35 0.0058 |
3.35 0.0058 |
3.35 0.0058 |
3.35 0.0058 |
3.35 0.0058 |
1067 | 76.5% | Alternate | 0.0031 | 0.0790 | 3.38 0.0045 |
3.37 0.0050 |
3.37 0.0056 |
3.36 0.0058 |
3.36 0.0058 |
3.36 0.0058 |
3.36 0.0058 |
3.36 0.0058 |
1080 | 66.0% | Standard | 0.0031 | 0.0790 | 3.59 0.0048 |
3.58 0.0052 |
3.58 0.0057 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
3.57 0.0059 |
1086 | 62.0% | Alternate | 0.0031 | 0.0790 | 3.68 0.0049 |
3.67 0.0053 |
3.67 0.0058 |
3.66 0.0059 |
3.66 0.0059 |
3.66 0.0060 |
3.66 0.0060 |
3.66 0.0060 |
1086 | 64.0% | Standard | 0.0033 | 0.0840 | 3.63 0.0049 |
3.63 0.0053 |
3.62 0.0057 |
3.62 0.0059 |
3.62 0.0059 |
3.62 0.0060 |
3.62 0.0060 |
3.61 0.0060 |
1080 | 69.0% | Standard | 0.0034 | 0.0860 | 3.53 0.0048 |
3.52 0.0052 |
3.52 0.0057 |
3.51 0.0059 |
3.51 0.0059 |
3.51 0.0059 |
3.51 0.0059 |
3.51 0.0059 |
1086 | 66.5% | Standard | 0.0035 | 0.0890 | 3.58 0.0048 |
3.57 0.0052 |
3.57 0.0057 |
3.56 0.0059 |
3.56 0.0059 |
3.56 0.0059 |
3.56 0.0059 |
3.56 0.0059 |
1078 | 69.5% | Standard | 0.0036 | 0.0910 | 3.52 0.0047 |
3.51 0.0051 |
3.51 0.0057 |
3.50 0.0058 |
3.50 0.0058 |
3.50 0.0059 |
3.50 0.0059 |
3.50 0.0059 |
1080 | 72.5% | Alternate | 0.0039 | 0.0990 | 3.46 0.0047 |
3.45 0.0051 |
3.45 0.0056 |
3.44 0.0058 |
3.44 0.0058 |
3.44 0.0059 |
3.44 0.0059 |
3.44 0.0059 |
1086 | 70.0% | Standard | 0.0040 | 0.1020 | 3.51 0.0047 |
3.50 0.0051 |
3.50 0.0057 |
3.49 0.0058 |
3.49 0.0058 |
3.49 0.0059 |
3.49 0.0059 |
3.49 0.0059 |
3313 | 57.0% | Alternate | 0.0040 | 0.1020 | 3.79 0.0051 |
3.78 0.0054 |
3.78 0.0058 |
3.78 0.0060 |
3.78 0.0060 |
3.78 0.0060 |
3.77 0.0060 |
3.77 0.0060 |
2113 | 59.0% | Standard | 0.0041 | 0.1040 | 3.74 0.0050 |
3.74 0.0054 |
3.73 0.0058 |
3.73 0.0060 |
3.73 0.0060 |
3.73 0.0060 |
3.73 0.0060 |
3.73 0.0060 |
1078 | 73.5% | Standard | 0.0042 | 0.1070 | 3.44 0.0046 |
3.43 0.0051 |
3.43 0.0056 |
3.42 0.0058 |
3.42 0.0058 |
3.42 0.0059 |
3.42 0.0059 |
3.42 0.0059 |
3313 | 59.0% | Standard | 0.0043 | 0.1090 | 3.74 0.0050 |
3.74 0.0054 |
3.73 0.0058 |
3.73 0.0060 |
3.73 0.0060 |
3.73 0.0060 |
3.73 0.0060 |
3.73 0.0060 |
3313 | 63.5% | Standard | 0.0049 | 0.1250 | 3.64 0.0049 |
3.64 0.0053 |
3.63 0.0057 |
3.63 0.0059 |
3.63 0.0059 |
3.63 0.0060 |
3.63 0.0060 |
3.63 0.0060 |
2116 | 56.5% | Standard | 0.0051 | 0.1300 | 3.80 0.0051 |
3.79 0.0054 |
3.79 0.0058 |
3.79 0.0060 |
3.79 0.0060 |
3.79 0.0060 |
3.78 0.0060 |
3.78 0.0060 |
2116 | 59.00% | Standard | 0.0055 | 0.1400 | 3.74 0.0050 |
3.74 0.0054 |
3.73 0.0058 |
3.73 0.0060 |
3.73 0.0060 |
3.73 0.0060 |
3.73 0.0060 |
3.73 0.0060 |
NOTE
Revisions:
A-Original-4/17
B-Added Standard & Alternate construction-8/18
C- Corrected 3.5 core 2x1078 to 1x1078
All I-Speed glass is Spread Weave in both directions
Resource Title & Summary | Date Updated |
---|---|
I-Speed Prepreg Supplemental | 03/20/2024 |
I-Speed Laminate Supplemental | 03/20/2024 |
Isola Laminate Outgassing Data Properties | 03/22/2024 |
I-Speed Processing Guide | 06/24/2020 |
I-Speed Laminate Safety Data Sheet | 01/22/2024 |
I-Speed Prepreg Safety Data Sheet | 02/26/2024 |
I-Speed Prepreg RoHS Declaration | 03/20/2024 |
I-Speed Laminate RoHS Declaration | 03/20/2024 |
Resources
Making Sense of Laminate Dielectric Properties
This paper highlights the critical selection factors that go beyond a typical product data sheet and explains how these factors must be considered when selecting materials for high speed applications.
Laminate & Prepreg Manufacturing
This presentation describes the process of laminate and prepreg manufacturing.
Quantifying Timing Skew In Differential Signaling using Practical Fiber Weave Model
This presentation outlines practical fiber weave effect model for skew and jitter.
PCB Material Selection for High-speed Digital Designs
This presentation describes PCB factors that limit high-speed digital performance and the PCB material selection process and Isola product solutions.
Modelling Skew and Jitter induced by Fiber weave effect in PCB dielectrics
This presentation describes a practical fiber-weave effect model to mitigate skew.
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