FR408HR
Lead Free, Mid Loss Laminate and Prepreg
FR408HR is a high-performance FR-4 resin system with a 230°C (DMA) Tg for multilayer PCB applications where maximum thermal performance and reliability are required.
Thermal Performance
Td: 360°C
Electrical Performance
Df: 0.0092
FR408HR laminate and prepreg products are manufactured with Isola’s patented high performance multifunctional resin system, reinforced with electrical grade (E-glass) glass fabric. This system delivers a 30% 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 FR408HR system is also 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
- RoHS Compliant
- Performance Attributes
- CAF resistant
- Lead-free assembly compatible
- 6x 260°C reflow capable
- 6x 288°C solder float capable
- Processing Advantages
- FR-4 process compatible
- Via filling capability
- Multiple lamination cycles
Production & Manufacturing
Currently manufactured in Asia, North America, Europe
Product Availability
- Standard Material Offering: Laminate
- 2 to 30 mil (0,05 to 0.75 mm)
- Copper Foil Type
- HTE Grade 3
- 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
- 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 | 190 | °C | 2.4.25C | |
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 >30
|
Minutes | 2.4.24.1 |
Z-Axis CTE |
A. Pre-Tg B. Post-Tg C. 50 to 260°C, (Total Expansion)
|
55 230 2.8
|
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. @ 100 MHz B. @ 1 GHz C. @ 2 GHz D. @ 5 GHz E. @ 10 GHz
|
3.72 3.69 3.68 3.64 3.65
|
— |
2.5.5.3 2.5.5.9 Bereskin Stripline Bereskin Stripline Bereskin Stripline
|
Df, Loss Tangent |
A. @ 100 MHz B. @ 1 GHz C. @ 2 GHz D. @ 5 GHz E. @ 10 GHz
|
0.0072 0.0091 0.0092 0.0098 0.0095
|
— |
2.5.5.3 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. Low profile copper foil and very low profile copper foil all copper foil >17 μm [0.669 mil] B. Standard profile copper 1. After thermal stress 2. 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
|
500 (72.5) 400 (58.0)
|
MPa (kpsi) | 2.4.4B |
Tensile Strength |
A. Length direction B. Cross direction
|
376 (54.5) 267 (38.7)
|
MPa (kpsi) | ASTM D3039 |
Young's Modulus |
A. Length direction B. Cross direction
|
3695 3315
|
ksi | ASTM D790-15e2 |
Poisson's Ratio |
A. Length direction B. Cross direction
|
0.137 0.133
|
— | 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 | 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: Removed Low Dk Glass Option - 10/18
D: Change MOT to RTI - 5/19
E: Revised CTI to 2 - 1/21
F: Removed "0.8 mm pitch" feature seen as limitation versus capability - 6/24
Core Data
Construction | Resin Content % | Standard/ Alternate | Thickness (inch) | Thickness (mm) | Dielectric Constant (DK)/ Dissipation Factor (DF) | |||||
---|---|---|---|---|---|---|---|---|---|---|
100 MHz | 500 MHz | 1 GHz | 2 GHz | 5 GHz | 10 Ghz | |||||
1x106 | 72.0% | Standard | 0.0020 | 0.051 | 3.37 0.0075 |
3.36 0.0089 |
3.34 0.0096 |
3.32 0.0101 |
3.30 0.0107 |
3.30 0.0107 |
1x1080 | 57.0% | Standard | 0.0025 | 0.064 | 3.67 0.0071 |
3.64 0.0079 |
3.62 0.0089 |
3.61 0.0092 |
3.60 0.0097 |
3.59 0.0095 |
1x1067 | 69.0% | Alternate | 0.0025 | 0.064 | 3.42 0.0075 |
3.40 0.0084 |
3.38 0.0095 |
3.36 0.0100 |
3.34 0.0105 |
3.33 0.0104 |
1x1080 | 63.0% | Standard | 0.0030 | 0.076 | 3.54 0.0074 |
3.52 0.0082 |
3.50 0.0092 |
3.48 0.0096 |
3.47 0.0102 |
3.47 0.0101 |
1x1086 | 59.0% | Alternate | 0.0030 | 0.076 | 3.65 0.0072 |
3.63 0.0079 |
3.60 0.0091 |
3.59 0.0092 |
3.57 0.0098 |
3.57 0.0095 |
2x106 | 67.0% | Standard | 0.0035 | 0.089 | 3.46 0.0074 |
3.45 0.0083 |
3.42 0.0094 |
3.40 0.0098 |
3.38 0.0104 |
3.37 0.0102 |
1x3313 | 51.0% | Standard | 0.0035 | 0.089 | 3.82 0.0068 |
3.79 0.0076 |
3.77 0.0084 |
3.77 0.0087 |
3.74 0.0092 |
3.74 0.0090 |
1x106/1x1080 | 59.0% | Standard | 0.0040 | 0.102 | 3.63 0.0072 |
3.61 0.0080 |
3.58 0.0090 |
3.57 0.0093 |
3.55 0.0098 |
3.54 0.0096 |
1x3313 | 55.0% | Standard | 0.0040 | 0.102 | 3.72 0.0071 |
3.70 0.0077 |
3.68 0.0087 |
3.66 0.0090 |
3.65 0.0095 |
3.65 0.0094 |
1x106/1x1080 | 61.0% | Alternate | 0.0043 | 0.109 | 3.57 0.0073 |
3.56 0.0081 |
3.54 0.0092 |
3.52 0.0095 |
3.51 0.0099 |
3.50 0.0098 |
1x2116 | 50.0% | Standard | 0.0045 | 0.114 | 3.82 0.0068 |
3.81 0.0075 |
3.80 0.0083 |
3.79 0.0086 |
3.78 0.0091 |
3.76 0.0089 |
1x106/1x1080 | 62.0% | Standard | 0.0045 | 0.114 | 3.55 0.0073 |
3.54 0.0082 |
3.52 0.0092 |
3.50 0.0095 |
3.48 0.0100 |
3.48 0.0098 |
2x1067 | 69.0% | Alternate | 0.0050 | 0.127 | 3.42 0.0075 |
3.40 0.0084 |
3.38 0.0095 |
3.36 0.0100 |
3.34 0.0105 |
3.33 0.0104 |
2x1080 | 57.0% | Standard | 0.0050 | 0.127 | 3.67 0.0071 |
3.64 0.0079 |
3.62 0.0089 |
3.61 0.0092 |
3.60 0.0097 |
3.59 0.0095 |
1x2116 | 54.0% | Standard | 0.0050 | 0.127 | 3.72 0.0070 |
3.71 0.0077 |
3.70 0.0086 |
3.69 0.0089 |
3.67 0.0095 |
3.67 0.0093 |
2x1080 | 58.0% | Standard | 0.0055 | 0.140 | 3.65 0.0072 |
3.63 0.0079 |
3.60 0.0091 |
3.59 0.0092 |
3.57 0.0098 |
3.57 0.0095 |
2x1086 | 58.0% | Alternate | 0.0060 | 0.152 | 3.65 0.0072 |
3.63 0.0079 |
3.60 0.0091 |
3.59 0.0092 |
3.57 0.0098 |
3.57 0.0095 |
1x1652 | 50.0% | Standard | 0.0060 | 0.152 | 3.82 0.0068 |
3.81 0.0075 |
3.80 0.0083 |
3.79 0.0086 |
3.78 0.0091 |
3.76 0.0089 |
2x3313 | 50.0% | Standard | 0.0070 | 0.178 | 3.82 0.0068 |
3.81 0.0075 |
3.80 0.0083 |
3.79 0.0086 |
3.78 0.0091 |
3.76 0.0089 |
2x3313 | 55.0% | Standard | 0.0080 | 0.203 | 3.72 0.0071 |
3.70 0.0077 |
3.68 0.0087 |
3.66 0.0090 |
3.65 0.0095 |
3.65 0.0094 |
2x2116 | 54.0% | Standard | 0.0100 | 0.254 | 3.72 0.0070 |
3.71 0.0077 |
3.70 0.0086 |
3.69 0.0089 |
3.67 0.0095 |
3.67 0.0093 |
2x1652 | 42.0% | Standard | 0.0100 | 0.254 | 4.02 0.0065 |
4.01 0.0072 |
3.99 0.0080 |
3.98 0.0083 |
3.97 0.0088 |
3.96 0.0085 |
3x3313 | 55.0% | Standard | 0.0120 | 0.305 | 3.72 0.0071 |
3.70 0.0077 |
3.68 0.0087 |
3.66 0.0090 |
3.65 0.0095 |
3.65 0.0094 |
1x1080/2x1652 | 49.0% | Standard | 0.0140 | 0.356 | 3.86 0.0068 |
3.83 0.0074 |
3.81 0.0083 |
3.80 0.0086 |
3.78 0.0090 |
3.78 0.0089 |
3x1652 | 45.0% | Standard | 0.0160 | 0.406 | 3.95 0.0066 |
3.92 0.0072 |
3.91 0.0080 |
3.90 0.0083 |
3.89 0.0086 |
3.88 0.0085 |
3x1652 | 50.0% | Standard | 0.0180 | 0.457 | 3.82 0.0068 |
3.81 0.0075 |
3.80 0.0083 |
3.79 0.0086 |
3.78 0.0091 |
3.76 0.0089 |
2x2116/2x1652 | 46.0% | Alternate | 0.0190 | 0.483 | 3.92 0.0066 |
3.90 0.0073 |
3.89 0.0081 |
3.87 0.0089 |
3.86 0.0087 |
3.85 0.0086 |
2x2116/2x1652 | 47.0% | Alternate | 0.0200 | 0.508 | 3.89 0.0067 |
3.88 0.0074 |
3.87 0.0083 |
3.85 0.0085 |
3.84 0.0089 |
3.83 0.0088 |
2x2116/2x1652 | 50.0% | Alternate | 0.0210 | 0.533 | 3.82 0.0068 |
3.81 0.0075 |
3.80 0.0083 |
3.79 0.0086 |
3.78 0.0091 |
3.76 0.0089 |
2x2116/3x1652 | 52.0% | Alternate | 0.0280 | 0.711 | 3.77 0.0073 |
3.76 0.0080 |
3.76 0.0088 |
3.75 0.0091 |
3.73 0.0093 |
3.73 0.0093 |
Prepreg Data
Glass Style | Resin Content % | Standard/Alternate | Thickness (inch) | Thickness (mm) | Dielectric Constant (DK)/ Dissipation Factor (DF) | |||||
---|---|---|---|---|---|---|---|---|---|---|
100 MHz | 500 MHz | 1 GHz | 2 GHz | 5 GHz | 10 GHz | |||||
106 | 70.0% | Standard | 0.0019 | 0.048 | 3.40 0.0080 |
3.38 0.0090 |
3.36 0.0100 |
3.34 0.0100 |
3.32 0.0110 |
3.31 0.0110 |
106 | 75.0% | Standard | 0.0023 | 0.058 | 3.30 0.0080 |
3.27 0.0090 |
3.26 0.0100 |
3.23 0.0110 |
3.22 0.0110 |
3.22 0.0110 |
1067 | 69.0% | Standard | 0.0023 | 0.058 | 3.42 0.0080 |
3.40 0.0080 |
3.38 0.0100 |
3.36 0.0100 |
3.34 0.0110 |
3.33 0.0100 |
1067 | 73.0% | Standard | 0.0027 | 0.069 | 3.33 0.0080 |
3.32 0.0090 |
3.30 0.0100 |
3.28 0.0100 |
3.26 0.0110 |
3.26 0.0110 |
1086 | 62.0% | Standard | 0.0032 | 0.081 | 3.55 0.0070 |
3.54 0.0080 |
3.52 0.0090 |
3.50 0.0100 |
3.48 0.0100 |
3.48 0.0100 |
1080 | 65.0% | Standard | 0.0032 | 0.081 | 3.50 0.0070 |
3.49 0.0080 |
3.46 0.0090 |
3.44 0.0100 |
3.42 0.0100 |
3.42 0.0100 |
1086 | 65.0% | Standard | 0.0035 | 0.089 | 3.50 0.0070 |
3.49 0.0080 |
3.46 0.0090 |
3.44 0.0100 |
3.42 0.0100 |
3.42 0.0100 |
1080 | 71.0% | Standard | 0.0040 | 0.102 | 3.37 0.0080 |
3.36 0.0090 |
3.34 0.0100 |
3.32 0.0100 |
3.30 0.0110 |
3.30 0.0110 |
2313 | 56.0% | Standard | 0.0040 | 0.102 | 3.70 0.0070 |
3.67 0.0080 |
3.65 0.0090 |
3.64 0.0090 |
3.63 0.0100 |
3.62 0.0100 |
3313 | 57.0% | Standard | 0.0040 | 0.102 | 3.67 0.0070 |
3.64 0.0080 |
3.62 0.0090 |
3.61 0.0090 |
3.60 0.0100 |
3.59 0.0100 |
2113 | 57.5% | Alternate | 0.0041 | 0.104 | 3.67 0.0070 |
3.64 0.0080 |
3.62 0.0090 |
3.61 0.0090 |
3.60 0.0100 |
3.59 0.0100 |
3313 | 59.0% | Standard | 0.0042 | 0.107 | 3.63 0.0070 |
3.61 0.0080 |
3.58 0.0090 |
3.57 0.0090 |
3.55 0.0100 |
3.54 0.0100 |
2116 | 55.0% | Standard | 0.0049 | 0.124 | 3.72 0.0070 |
3.70 0.0080 |
3.68 0.0090 |
3.66 0.0090 |
3.65 0.0100 |
3.65 0.0090 |
2116 | 58.0% | Alternate | 0.0054 | 0.137 | 3.65 0.0070 |
3.63 0.0080 |
3.60 0.0090 |
3.59 0.0090 |
3.57 0.0100 |
3.56 0.0100 |
NOTE
Revisions:
A-Original-4/17
B-Added Standard & Alternate construction-8/18
C-Removed Low Dk glass option 10/18
D-1086 71% PP changed to Std/Spread-2/19
E-Corrected RC% on 3 mil 1086 from 58% to 59% 11/22
F-Corrected RC% on 2113 prepreg to 57.5% 2/23
All FR408HR glass is Spread Weave in both directions
Resource Title & Summary | Date Updated |
---|---|
FR408HR Laminate Supplemental | 03/20/2024 |
FR408HR Prepreg Supplemental | 03/20/2024 |
Isola Laminate Outgassing Data Properties | 03/22/2024 |
FR408HR Processing Guide | 06/23/2020 |
FR408HR Laminate Safety Data Sheet | 01/22/2024 |
FR408HR Prepreg Safety Data Sheet | 02/26/2024 |
FR408HR Laminate RoHS Declaration | 03/20/2024 |
FR408HR Prepreg RoHS Declaration | 03/20/2024 |
Resources
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.
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