185HR

High Reliability Epoxy Laminate and Prepreg

185HR laminate and prepreg materials are a proprietary, high-performance resin system with a Tg of 180°C for multilayer Printed Wiring Board (PWB) applications where maximum thermal performance and reliability are required.

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Thermal Performance

Tg: 180°C
Td: 340°C

Electrical Performance

Dk: 4.01
Df: 0.020

Industry Approvals

IPC-4101 /98 /99 /101 /126
UL - File Number E41625

185HR laminate and prepreg materials are manufactured using Isola’s patented technology, reinforced with electrical grade (E-glass) glass fabric. This system delivers a 340°C decomposition temperature, a lower Z-axis expansion and offers lower loss compared to competitive products in this space. The 185HR system is also laser fluorescing and UV blocking for maximum compatibility with Automated Optical Inspection (AOI) systems, optical positioning systems and photoimageable solder mask imaging.

Attributes

HighThermalReliability High Density Interconnect

Markets

AutomotiveTransportation MedicalIndustrialInstrumentation AerospaceDefense ConsumerElectronics NetworkingCommunications

Product Features

  • Industry Recognition
    • UL File Number: E41625
    • Qualified to UL’s MCIL Program
    • RoHS Compliant
  • Performance Attributes
    • CAF resistant
    • Lead-free assembly compatible
  • Processing Advantages
    • FR-4 process compatible
    • UV blocking and AOI fluorescence

Production & Manufacturing

Currently manufactured in Asia, North America, Europe

Product Availability

  • Standard Material Offering: Laminate
    • 2 to 93 mil (0.05 to 2.4 mm)
  • Copper Foil Type
    • HTE Grade 3
    • RTF (Reverse Treat 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
    • Roll or panel form
    • Tooling of prepreg panels
  • Glass Fabric Availability
    • E-glass
    • Square weave glass
Property Typical Value Units Test Method
Metric (English) IPC-TM-650 (or as noted)
Test data generated from rigid laminate 50 % 2.3.16.2
Glass Transition Temperature (Tg) by DSC 180 °C 2.4.25C
Glass Transition Temperature (Tg) by DMA 185 °C 2.4.24.4
Decomposition Temperature (Td) by TGA @ 5% weight loss 340 °C 2.4.24.6
Time to Delaminate by TMA (Copper removed)
A. T260
B. T288
60
>15
 Minutes 2.4.24.1
Z-Axis CTE
A. Pre-Tg
B. Post-Tg
C. 50 to 260°C, (Total Expansion)
40
220
2.7
ppm/°C
ppm/°C
%
 2.4.24C
X/Y-Axis CTE Pre-Tg 13/14 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
4.13
4.04
4.01
3.88
3.88
 —
2.5.5.3
Bereskin Stripline
Bereskin Stripline
Bereskin Stripline
Bereskin Stripline
Df, Loss Tangent
A. @ 100 MHz
B. @ 1 GHz
C. @ 2 GHz
D. @ 5 GHz
E. @ 10 GHz
0.0158
0.0192
0.0200
0.0235
0.0236
 —
2.5.5.3
Bereskin Stripline
Bereskin Stripline
Bereskin Stripline
Bereskin Stripline
Volume Resistivity
A. C-96/35/90
B. After moisture resistance
C. At elevated temperature
—
3.0 x 108
7.0 x 108
 MΩ-cm 2.5.17.1
Surface Resistivity
A. C-96/35/90
B. After moisture resistance
C. At elevated temperature
—
3.0 x 106
2.0 x 108
 MΩ 2.5.17.1
Dielectric Breakdown >50 kV 2.5.6B
Arc Resistance 115 Seconds 2.5.1B
Electric Strength (Laminate & laminated prepreg) 54 (1350) kV/mm (V/mil) 2.5.6.2A
Comparative Tracking Index (CTI) 3 (175-249) 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. At 125ºC (257ºF)
    3. After process solutions

>0.79 (>4.5)

>0.79 (>4.5)
>0.79 (>4.5)
>0.79 (>4.5)
 N/mm (lb/inch)
2.4.8C

2.4.8.2A
2.4.8.3
2.4.8.3
Flexural Strength
A. Length direction
B. Cross direction
669 (97.1)
373 (54.1)
 MPa (kpsi) 2.4.4B
Tensile Strength
A. Length direction
B. Cross direction
367 (53.3)
246 (35.7)
 MPa (kpsi) ASTM D3039
Young's Modulus
A. Length direction
B. Cross direction
3770
3337
 ksi ASTM D790-15e2
Poisson's Ratio
A. Length direction
B. Cross direction
0.172
0.155
 — ASTM D3039
Moisture Absorption 0.15 % 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 Peel Strength to >0.79(>4.5) 4/22

Download Dk/Df Tables PDF

Core Data

Constructions 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
1x1080 60% Standard 0.0025 0.064 4.06
0.0160		 3.98
0.0190		 3.96
0.0200		 3.93
0.0210		 3.81
0.0250		 3.80
0.0250
1x1067 73% Alt/Spread 0.0025 0.064 3.84
0.0180		 3.77
0.0210		 3.74
0.0230		 3.70
0.0240		 3.55
0.0290		 3.54
0.0290
1x1080 66% Standard 0.0030 0.076 3.96
0.0170		 3.89
0.0200		 3.86
0.0220		 3.82
0.0220		 3.68
0.0270		 3.68
0.0270
1x1086 61% Alt/Spread 0.0030 0.076 4.04
0.0170		 3.97
0.0190		 3.94
0.0200		 3.91
0.0210		 3.78
0.0250		 3.78
0.0250
1x3313 52% Alternate 0.0035 0.089 4.20
0.0150		 4.13
0.0170		 4.11
0.0180		 4.09
0.0190		 3.97
0.0220		 3.98
0.0220
1x2113 54% Standard 0.0035 0.089 4.19
0.0160		 4.10
0.0170		 4.07
0.0190		 4.04
0.0200		 3.92
0.0230		 3.92
0.0230
2x106 68% Standard 0.0035 0.089 3.92
0.0140		 3.88
0.0150		 3.86
0.0180		 3.84
0.0190		 3.69
0.0190		 3.69
0.0190
1x2116 48% Standard 0.0040 0.102 4.28
0.0150		 4.21
0.0160		 4.20
0.0180		 4.18
0.0180		 4.05
0.0210		 4.05
0.0210
1x3313 57% Alternate 0.0040 0.102 4.11
0.0160		 4.04
0.0180		 4.03
0.0190		 3.99
0.0200		 3.86
0.0240		 3.86
0.0240
2x106 72% Standard 0.0040 0.102 3.86
0.0180		 3.78
0.0210		 3.76
0.0230		 3.72
0.0240		 3.57
0.0280		 3.56
0.0290
1x2116 53% Standard 0.0045 0.114 4.18
0.0150		 4.11
0.0170		 4.10
0.0190		 4.07
0.0190		 3.94
0.0230		 3.94
0.0230
1x106 / 1x1080 65% Alternate 0.0045 0.114 3.97
0.0170		 3.90
0.0200		 3.87
0.0210		 3.84
0.0220		 3.70
0.0260		 3.70
0.0260
1x2116 57% Standard 0.0050 0.127 4.11
0.0160		 4.04
0.0180		 4.03
0.0190		 3.99
0.0200		 3.86
0.0240		 3.86
0.0240
2x1080 60% Standard 0.0050 0.127 4.06
0.0160		 3.98
0.0190		 3.96
0.0200		 3.93
0.0210		 3.81
0.0250		 3.80
0.0250
2x1067 73% Alt/Spread 0.0050 0.127 3.84
0.0180		 3.77
0.0210		 3.74
0.0230		 3.70
0.0240		 3.55
0.0290		 3.54
0.0290
2x1080 63% Alternate 0.0055 0.140 4.00
0.0170		 3.93
0.0190		 3.91
0.0210		 3.87
0.0220		 3.74
0.0260		 3.74
0.0260
1x106 / 1x2113 60% Alternate 0.0055 0.140 4.06
0.0160		 3.98
0.0190		 3.96
0.0200		 3.93
0.0210		 3.81
0.0250		 3.80
0.0250
1x1652 52% Standard 0.0060 0.152 4.20
0.0150		 4.13
0.0170		 4.11
0.0180		 4.09
0.0190		 3.97
0.0220		 3.98
0.0220
2x1080 65% Standard 0.0060 0.152 3.97
0.0170		 3.90
0.0200		 3.87
0.0210		 3.84
0.0220		 3.70
0.0260		 3.70
0.0260
2x1086 61% Alt/Spread 0.0060 0.152 4.04
0.0170		 3.97
0.0190		 3.94
0.0200		 3.91
0.0210		 3.78
0.0250		 3.78
0.0250
1x7628 43% Alternate 0.0070 0.178 4.38
0.0140		 4.32
0.0150		 4.31
0.0160		 4.27
0.0170		 4.16
0.0200		 4.15
0.0200
2x2113 54% Alternate 0.0070 0.178 4.19
0.0160		 4.10
0.0170		 4.07
0.0190		 4.04
0.0200		 3.92
0.0230		 3.92
0.0230
2x3313 52% Alternate 0.0070 0.178 4.20
0.0150		 4.13
0.0170		 4.11
0.0180		 4.09
0.0190		 3.97
0.0220		 3.98
0.0220
1x7628 46% Alternate 0.0075 0.191 4.32
0.0140		 4.27
0.0160		 4.24
0.0170		 4.21
0.0180		 4.10
0.0200		 4.10
0.0210
1x7628 48% Standard 0.0080 0.203 4.28
0.0150		 4.21
0.0160		 4.20
0.0180		 4.18
0.0180		 4.05
0.0210		 4.05
0.0210
2x2116 48% Standard 0.0080 0.203 4.28
0.0150		 4.21
0.0160		 4.20
0.0180		 4.18
0.0180		 4.05
0.0210		 4.05
0.0210
2x3313 57% Alternate 0.0080 0.203 4.11
0.0160		 4.04
0.0180		 4.03
0.0190		 3.99
0.0200		 3.86
0.0240		 3.86
0.0240
2x2116 53% Alternate 0.0090 0.229 4.18
0.0150		 4.11
0.0170		 4.10
0.0190		 4.07
0.0190		 3.94
0.0230		 3.94
0.0230
2x2116 57% Standard 0.0100 0.254 4.11
0.0160		 4.04
0.0180		 4.03
0.0190		 3.99
0.0200		 3.86
0.0240		 3.86
0.0240
2x1652 52% Standard 0.0120 0.305 4.20
0.0150		 4.13
0.0170		 4.11
0.0180		 4.09
0.0190		 3.97
0.0220		 3.98
0.0220
3x2116 48% Alternate 0.0120 0.305 4.28
0.0150		 4.21
0.0160		 4.20
0.0180		 4.18
0.0180		 4.05
0.0210		 4.05
0.0210
2x7628 43% Standard 0.0140 0.356 4.38
0.0140		 4.32
0.0150		 4.31
0.0160		 4.27
0.0170		 4.16
0.0200		 4.15
0.0200
2x7628 47% Standard 0.0160 0.406 4.33
0.0140		 4.30
0.0160		 4.28
0.0170		 4.26
0.0180		 4.16
0.0200		 4.16
0.0210
2x7628 / 1x2116 44% Standard 0.0180 0.457 4.36
0.0140		 4.30
0.0150		 4.29
0.0170		 4.25
0.0170		 4.14
0.0200		 4.13
0.0200
3x7628 43% Standard 0.0210 0.533 4.38
0.0140		 4.32
0.0150		 4.31
0.0160		 4.27
0.0170		 4.16
0.0200		 4.15
0.0200
3x7628 45% Standard 0.0240 0.610 4.31
0.0140		 4.30
0.0160		 4.26
0.0180		 4.24
0.0180		 4.15
0.0220		 4.15
0.0220
4x7628 43% Standard 0.0280 0.711 4.38
0.0140		 4.32
0.0150		 4.31
0.0160		 4.27
0.0170		 4.16
0.0200		 4.15
0.0200
4x7628 45% Standard 0.0310 0.787 4.31
0.0140		 4.30
0.0160		 4.26
0.0180		 4.24
0.0180		 4.15
0.0220		 4.15
0.0220
5x7628 43% Alternate 0.0350 0.889 4.38
0.0140		 4.32
0.0150		 4.31
0.0160		 4.27
0.0170		 4.16
0.0200		 4.15
0.0200
5x7628 45% Alternate 0.0390 0.991 4.31
0.0140		 4.30
0.0160		 4.26
0.0180		 4.24
0.0180		 4.15
0.0220		 4.15
0.0220
8x7628 43% Alternate 0.0590 1.499 4.38
0.0140		 4.32
0.0150		 4.31
0.0160		 4.27
0.0170		 4.16
0.0200		 4.15
0.0200

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
106 73.0% Alternate 0.0020 0.051 3.84
0.0180		 3.81
0.0210		 3.83
0.0230		 3.68
0.0240		 3.51
0.0280		 3.50
0.0280
1067 71.0% Alternate 0.0023 0.058 3.88
0.0180		 3.84
0.0210		 3.82
0.0230		 3.79
0.0240		 3.65
0.0280		 3.65
0.0280
106 77.0% Standard 0.0025 0.064 3.79
0.0190		 3.71
0.0220		 3.69
0.0240		 3.65
0.0250		 3.50
0.0300		 3.49
0.0300
1086 64.0% Alternate 0.0032 0.081 3.99
0.0170		 3.96
0.0190		 3.94
0.0210		 3.91
0.0220		 3.78
0.0260		 3.78
0.0260
1080 67.0% Standard 0.0032 0.081 3.94
0.0170		 3.86
0.0200		 3.84
0.0220		 3.78
0.0230		 3.66
0.0270		 3.66
0.0270
1080 72.0% Alternate 0.0039 0.099 3.86
0.0180		 3.78
0.0210		 3.76
0.0230		 3.72
0.0240		 3.57
0.0280		 3.56
0.0290
1080 74.0% Alternate 0.0042 0.107 3.82
0.0190		 3.66
0.0220		 3.66
0.0240		 3.60
0.0250		 3.44
0.0300		 3.44
0.0300
2113 60.0% Standard 0.0042 0.107 4.06
0.0160		 3.98
0.0190		 3.96
0.0200		 3.93
0.0210		 3.81
0.0250		 3.80
0.0250
3313 60.0% Alternate 0.0044 0.112 4.06
0.0160		 3.98
0.0190		 3.96
0.0200		 3.93
0.0210		 3.81
0.0250		 3.80
0.0250
2116 54.0% Alternate 0.0048 0.122 4.14
0.0150		 4.09
0.0170		 4.08
0.0180		 4.05
0.0190		 3.92
0.0220		 3.91
0.0230
2116 57.0% Standard 0.0051 0.130 4.11
0.0160		 4.04
0.0180		 4.03
0.0190		 3.99
0.0200		 3.86
0.0240		 3.86
0.0240
2116 59.0% Alternate 0.0054 0.137 4.09
0.0160		 4.01
0.0190		 4.00
0.0200		 3.96
0.0210		 3.84
0.0250		 3.83
0.0250
1652 52.0% Alternate 0.0060 0.152 4.20
0.0150		 4.13
0.0170		 4.11
0.0180		 4.09
0.0190		 3.97
0.0220		 3.98
0.0230
7628 44.0% Alternate 0.0073 0.185 4.36
0.0140		 4.32
0.0160		 4.29
0.0170		 4.23
0.0180		 4.15
0.0200		 4.15
0.0210
7628 46.0% Standard 0.0077 0.196 4.32
0.0140		 4.27
0.0160		 4.24
0.0170		 4.21
0.0180		 4.10
0.0200		 4.10
0.0210
7628 49.0% Alternate 0.0082 0.208 4.27
0.0140		 4.19
0.0170		 4.17
0.0180		 4.16
0.0190		 4.03
0.0210		 4.03
0.0220

NOTE

Revisions:
A - Original
B - Added Availability
C - Added 2116 59% RC
D - Added 5x7628 39 mil construction option 5/2022
"Standard or Std" - Commonly available with the best availability.
"Alternate or Alt" - Available, but not stocked with longer lead time
"Spread" - Glass is spread in both directions

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.

Conductive Anodic Filament Growth Failure

This paper provides describes Isola's work in finding the right combination of process and design conditions for improved CAF resistant products.

Laminate & Prepreg Manufacturing

This presentation describes the process of laminate and prepreg manufacturing.

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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