"Green Multilayer material " "Type No. MCL-BE-67G(H)" has achieved the UL94V-0 level of flammability, by developing an original thermosetting resin that has excellent anti-flammability property without using any compounds which includes halogen, antimony, or red phosphorus.
This material has good heat resistance and high elastic modulus at high temperature, and low CTE. So it is advantageous for the soldering process at the high temperature with lead-free solder, and it is suitable for high density interconnection technology. "

Features

• High heat resistance after water absorption compared to conventional FR-4.
• Elastic modulus at high temperature is higher than conventional FR-4.
• CTE is lower than conventional FR-4.
• TG is 140 to 150 ºC, which is higher than conventional FR-4.
• DK & Df vs frequency and temperature is stable.

Characteristics

Item		Condition	Unit	Actual Values (t0.8mm)
				MCL-BE-67G(R)	MCL−BE−67G (H)
Tg		TMA	°C	140～150	140～150
CTE*1	Z	(<Tg)	ppm/ °C	40～55	40～55
		(>Tg)		170～250	170～250
Flexural modulus (Lengthwise)		A	GPa	23～26	23～26
		150°C		16～19	16～19
Dielectric Constant	1MHz	C-96/20/65	—	4.8～5.0	4.8～5.0
Dissipation Factor	1MHz	C-96/20/65	—	0.0060～0.0070	0.0060～0.0070
Insulation Resistance		C-96/20/65+D-2/100	Ω	1×1014～1×1015	1×1014～1×1015
Water Absorption		E-24/50+D-24/23	%	0.02～0.04	0.02～0.04
Flammability (UL-94)		A	—	V–0	V–0
Solder Heat Resistance (288°C)		A	—	>180	>120

• *1) : Heating Rate:10°C/min.

Heat resistance after PCT treatment