HOME > Products > Electronic material > High performance Copper > CS-3379A / CS-3379AD / AD-3379
CS-3379A / CS-3379AD / AD-3379

Low dielectric PPE |
E-glass |
Low Dk glass |
Skewless |
Dk=3.6@30GHz
Df=0.0043@30GHz |
Dk=3.3@30GHz
Df=0.0036@30GHz |
Dk=3.1@30GHz
Df=0.0020@30GHz |
CS-3379A |
CS-3379AD |
AD-3379 |
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 |
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☆Prepreg:ES-3329A is also available |
☆Prepreg:ES-3329AD is also avaiable |
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Features
- Low water absorption of less than 0.1% (1.0mm thickness)
- Fit to make multi-layer PWB.
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Features
- Low water absorption of less than 0.1% (1.0mm thickness)
- Skewless with no glass.
- Fit to make high count multi-layer PWB.
- Fit to make hybrid PWB.
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Applications
- Mobile communication equipment (5G antenna,Power amplifier).
- 5G router,5G surver.
- Automotive appliance(Millimeter-wave antenna,ETC)
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Applications
- Bulid-up layer.
- Antenna layer.
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Dielectric properties according to frequency |
<Dielectric constant> |
 |
<Dissipation factor> |

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General properties |
Test items |
Unit |
Treatment |
CS-3379A |
CS-3379AD |
Glass fabric |
E glass |
Low Dk glass |
Dielectric constant |
1GHz |
― |
C-24/25/50 |
3.6 |
3.3 |
10GHz |
3.6 |
3.3 |
30GHz |
3.6 |
3.3 |
80GHz |
3.6 |
3.3 |
Dissipation factor |
1GHz |
― |
C-24/25/50 |
0.0038 |
0.0030 |
10GHz |
0.0041 |
0.0032 |
30GHz |
0.0043 |
0.0036 |
80GHz |
0.0059 |
0.0046 |
Glass transition temperature |
DMA |
℃ |
A |
220 |
Coefficient of
thermal expansion (X/Y) |
α1 |
ppm/℃ |
13 / 13 |
Coefficient of
thermal expansion (Z) |
α1 |
46 |
α2 |
211 |
Thermal expansion
(Z) |
30→260℃ |
% |
2.4 |
T-300 |
min |
E-2/105 |
120< |
Water absorption |
% |
E-24/50
+D-24/23 |
0.07 |
Flexural strength
(Warp / Fill) |
MPa |
A |
400 / 385 |
Flexural modulus
(Warp / Fill) |
GPa |
18 / 18 |
Young's modulus |
19 |
Poisson's ratio |
- |
0.18 |
Insulation resistance |
RT |
MΩ |
C-96/20/65 |
1×109 |
Volume resistivity |
RT |
MΩm |
C-96/20/65 |
7×107 |
Surface resistance |
RT |
MΩ |
C-96/20/65 |
2×109 |
Solder limit |
300℃
Float |
sec |
A |
300< |
Peel strength |
HVLP |
kN/m |
A |
0.6
(18μm) |
UL flammability |
UL94 |
94V-0 |
*Above figures show the test result of 1.0mm thickness material at our laboratory
*Test method is JIS C 6481 except UL flammability |
Standard specifications
Substrate thickness (mm) |
0.1 / 0.2 / 0.3 / 0.4 / 0.5 / 0.6 / 0.7 / 0.8 / 0.9 / 1.0 |
Cu thickness (μm) |
12 / 18 / 35 |
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AD-3379 (Prepreg) |

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Nominal Tickness
(mm) |
Film thickness
(μm) |
Shopping Thickness
(μm) |
Shipping size
(mm) |
0.10 |
50 |
100 |
500×500
340×500
and so on |
0.13 |
130 |
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ES-3329A / ES-3329AD ,prepreg to make mulilayer PWBs are also availabe. |
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Nominal thickness (mm) : 0.06 / 0.10 / 0.13 |