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Make
CEM-1
CEM-3
FR-4
FR-5
Prepreg
High Performance Materials
Resin Coated Copper Foil
Features
Higher glass transition temperature
Easy to drill by CO
2
laser
Excellent
f
illing ability
Even surface for fine line and space usage
Lower dielectric constant
Traditional FR-4 processability
Thin dielectric and light weight
UL File number E98983(s)
Product Thickness
Characteristics
Unit
Typical Values
Copper
μm
12 (3/8 oz)
18 (1/2 oz)
36 (1 oz)
Resin Thickness
μm
35 - 110
Performance List
Characteristics
Unit
Conditioning
Typical Values
Glass Transition
Temperature
°C
TMA
160±5
°C
DSC
180±5
Coefficient of Thermal
Expansion (Before Tg)
In/ in/ °C
TMA
6x10
~9x10
Surface Flatness
μm
-
2-3
Flammability
-
C-24/ 23/ 50+E-24/ 125
V-0
Peel Strength H oz
lb/ in
288°Cx10” solder dipping
7-8
Thermal Stress
SEC
288°C solder dipping
120↑
Permittivity 1MHZ
-
C-24/ 23/ 50
3.6-3.8
Loss Tangent 1MHZ
-
C-24/ 23/ 50
0.02-0.04
Surface Resistivity
MΩ
C-96/ 35/ 90
1.0x10
Volume Resistivity
MΩ-cm
C-96/ 35/ 90
3.0x10
Data shown are nominal values for reference only.
Performance List
A. Dielectric Constant (
εr
)
1MHz
2MHz
5MHz
10MHz
100MHz
500MHz
1GHz
FR4 -1.6
4.6007
4.5509
4.4014
4.3561
4.2628
4.1641
4.1101
NPRCC
3.7453
3.6973
3.5533
3.4827
3.332
3.2497
3.2231
Test Condition : C-24/ 23/ 50
B. Dissipation Factor (tan
d
)
1MHz
2MHz
5MHz
10MHz
100MHz
500MHz
1GHz
FR4 -1.6
0.042751
0.037166
0.020411
0.01491
0.011922
0.00887
0.011303
NPRCC
0.0392
0.0373
0.031599
0.028771
0.020463
0.016398
0.016504
Test Condition : C-24/ 23/ 50
Measurement Equipment : RF Impedance/ Material Analyzer 4291A
(Hewlett Packard)
The Manner of Lay-Up
Lamination
Recommended press cycles :
A. 2T2P (2 temperature step/ 2 pressure step)
B. 1T2P (1 temperature step/ 2 pressure step)
C. Vacuum
Vacuum (mmHg)
Time (min)
step 1
760
0
step 2
≦50
1-5
step 3
≦50
40-60
Suggestions
:
Heating rate of material between 70°C and 140°C, 1-3°C/ min is acceptable.
Temperature of material over 170°C must be held for at least 40 min to allow epoxy resin to fully cure.
Cooling rate of material should be kept under 2.5°C/ min when the temperature of material is over 100°C, in order to avoid introducing twist.
A vacuum of less than 50 mmHg will be needed to eliminate voids.
CAF-Resistance Materials
Copyright © 2017 Emerdax Corporation Inc. All Rights Reserved
~9x10
