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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.

 

Item	Units	Duraver E-Cu 104 ML		IS-400	370HR	7628ML04	1080AT01
		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	MΩ	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