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Materials commonly used for Multilayer PCBs

To compare different materials, the table below gives details of those most commonly used in Zubelzu double sided PCB's. 

Different base materials can be accommodated, subject to approval by our Technical Experts and to availability from suppliers.

 

ItemUnitsDuraver E-Cu 104 MLIS-400370HR7628ML041080AT01
Thickness
< 0,50 mm
Thickness
≥ 0,50 mm
Manufacturer - Isola Isola Isola Isola Isola Isola
Material - FR-4 FR-4 FR-4 FR-4 Pre-Preg Pre-Preg
Peel Strength
  • Low profile copper foil and very low profile
  • Standard profile copper foil after thermal strass
  • Standard profile copper foil 
  • All other foil composite
N/mm


1,4

1,95

1,85 (at 150 ºC)
-

 

 

-

2

1,9 (at 150 ºC)
-

 

 

-

-

-
-

 

 

1,14

1,25

1,25 (at 125 ºC)
-

 


-

-

-
-

-

-

-
-
Volume Resistivity
  • C-96/35/90
  • After moisture resistance
  • At elevated temperature E-24/125
MΩ x cm
6,0 x 106
-
7,2 x 106

-
8,0 x 108
-

1,0 x 104
-
1,0 x 103

-
3,0 x 108
7,0 x 108

-
-
-

-
-
-
Surface Resistivity
  • C-96/35/90
  • After moisture resistance
  • At elevated temperature E-24/125

1,3 x 106
-
3,7 x 107

-
4,0 x 106
7,0 x 104

1,0 x 104
-
1,0 x 106

-
3,0 x 106
2,0 x 108

-
-
-

-
-
-
Moisture Absorption % - 0,16 - 0,15 - -
CTE, Z-Axis
  • Before Tg
  • After Tg
ppm/ºC
-
-

-
-

AABUS
-

45
230

-
-


-
-

CTE, X and Y axis
  • Before Tg
  • After Tg
ppm/ºC
-
-

-
-

AABUS
-

13/14
14/17

-
-

-
-
Thermal Conductivity W/mK - - - 0,4 - -
Dielectric Breakdown kV - 45 40 >50 - -
Permitivity
  • @ 1MHz
  • @ 100MHz
  • @ 500MHz
-
4,6 - 4,9
-
-

4,6 - 4,9
-
-

4
-
3,9

-
5,4
-

-
-
-

-
-
-
Loss Tangent
  • a 1MHz
  • a 100MHz
  • a 500MHz
-


0,02
-
-

0,019
-
-

0,02
-
0,022

-
0,035
-

-
-
-

-
-
-
Flexural Strength
  • Length direction
  • Cross direction
N/mm2
-
-

600
480

-
-

630
540

-
-

 -
-
Thermal Stress for 10 sg at 288 ºC
  • Unetched
  • Etched
sg

 

-
-

 

≥ 10
≥ 10

 

Pass (Visual)
Pass (Visual)

 

Pass (Visual)
Pass (Visual)

 

-
-

 

-
-

Electric Strength kV/mm 39 - - - - -
Arc Resistance sg - - 60 - - -
Flammability - V-0 V-0 V-0 V-0 - -
Glass Transition Temperature ºC 135 135 150 180 - -
Comparative Tracking Index (CTI) Volts Class 3
(179 - 249)
Class 3
(179 - 249)
Class 3
(179 - 249)
- - -
Thickness after press mm - - - - 0,191 0,077
Resin content % - - - - 64 ± 3 43 ± 3
Gel time @ 171ºC ± 0,5ºC sg - - - - 145
(165)
185
110
(125)
140
Viscosity Pa x sg - - - - 80 ± 15 43 ± 15

REMARKS

Information according to manufacturer´s Technical Data Sheets

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