"Type No. MCL-LX-67Y" is high heat resistance multilayer material, which indicates low dielectric constant and low dissipation factor in GHz range of frequency, and also the processing characteristics are close to conventional FR-4. It is suitable for high frequency circuit board of cellular phone base station in the wireless communication market.

Features

• Low transmission loss in GHz range of frequency (about 40% of FR-4)
• Drift of its dielectric properties is small.
  (frequency dependence, temperature dependence, after water absorption)
• High Tg, low water absorption, high heat resistance

Characteristics

Item		Condition	Unit	Type No. MCL-LX-67Y	Type No. MCL-E-67 (FR-4)
Dielectric constant	1MHz	C-96/20/65	–	3.5~3.7	4.7~4.8
	1GHz*1	C-96/20/65		3.4~3.6	4.2~4.3
Dissipation factor	1MHz	C-96/20/65	–	0.0025~0.0045	0.0130~0.0170
	1GHz*1	C-96/20/65		0.0045~0.0065	0.0210~0.0250
Peel strength (18μm)		A	kN/m	1.0~1.4	1.4~1.6
Tg		TMA	ºC	185~195	120~130
Solder heat resistance (20s/260 ºC)		A	–	OK	OK
		PCT-4hrs		OK	OK
Water absorption		E-24/50+D-24/23	%	0.03~0.04	0.05~0.07
CAF		85 ºC/85RH%, 100V	hrs	>1000	>1000
Flammability (UL-94)		A	–	94V-0	94V-0

Note) General properties measured by JIS C 6481.
^*1 : Measured by triplate-line resonator