Park Aerospace Nelco® N4000-6 FC Multifunctional Epoxy Laminate and Prepreg

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Park Aerospace Nelco® N4000-6 FC Multifunctional Epoxy Laminate and Prepreg
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	The Nelco® N4000-6 FC is a high-Tg epoxy laminate and prepreg system that provides a wide range of performance versatility and ease of processing for demanding high-layer count applications. Key Features and Benefits: A Proven High-Tg Substrate Robust Thermal Properties Superior electrical properties Enhanced Standard FR-4 processing Applications/Qualifications: Fine-Line Multilayers Backplanes Surface-Mount Multilayers BGA Multilayers CSP Attachment Automotive Underhood Automotive Wireless Communications Infrastructure Network Storage High-End Servers RoHS Compliant Meets IPC-4101/24 and /26 Specifications Information provided by Park Electrochemical Corp.
Key Words:	EP
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Physical Properties	Original Value	Comments

Density	1.92 g/cc	50% Resin Content; Internal Method
Water Absorption	0.10 %	IPC-TM-650.2.6.2.1

Mechanical Properties	Original Value	Comments
Modulus of Elasticity	3700 ksi	Y; ASTM D3039
	4400 ksi	X; ASTM D3039
Poissons Ratio	0.14	Y; ASTM D3039
	0.16	X; ASTM D3039
Peel Strength	7.00 pli	at elevated temperature; IPC-TM-650.2.4.8.2a
	9.00 pli	after exposure to process solutions; IPC-TM-650.2.4.8
	9.00 pli	after solder float; IPC-TM-650.2.4.8

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+13 ohm-cm	E - 24/125; IPC-TM-650.2.5.17.1
	1.00e+14 ohm-cm	C - 96/35/90; IPC-TM-650.2.5.17.1
Surface Resistance	1.00e+13 ohm	C - 96/35/90; IPC-TM-650.2.5.17.1
	1.00e+13 ohm	E - 24/125; IPC-TM-650.2.5.17.1
Dielectric Constant	4.0 @Frequency 2.50e+9 Hz	Stripline; IPC-TM-650.2.5.5.5
	4.1 @Frequency 1e+9 Hz	RF Impedance; IPC-TM-650.2.5.5.9
	4.3 @Frequency 1e+6 Hz	TFC/LCR Meter; IPC-TM-650.2.5.5.3
Dielectric Strength	1300 V/mil	IPC-TM-650.2.5.6.2
Dielectric Breakdown	>= 50000 V	IPC-TM-650.2.5.6
Dissipation Factor	0.022 @Frequency 2.50e+9 Hz	Stripline; IPC-TM-650.2.5.5.5
	0.023 @Frequency 1e+6 Hz	TFC/LCR Meter; IPC-TM-650.2.5.5.3
Arc Resistance	70 sec	IPC-TM-650.2.5.1

Thermal Properties	Original Value	Comments
CTE, linear	6.67 - 8.33 µin/in-°F @Temperature -40.0 - 125 °C	X/Y; IPC-TM-650.2.4.41
	38.9 µin/in-°F @Temperature 50.0 - 175 °C	Z-Axis Alpha 1; IPC-TM-650.2.4.41
	178 µin/in-°F @Temperature 175 - 260 °C	Z-Axis Alpha 2; IPC-TM-650.2.4.41
Specific Heat Capacity	0.290 - 0.330 BTU/lb-°F	ASTM E1461-92
Thermal Conductivity	2.08 - 2.78 BTU-in/hr-ft²-°F	ASTM E1461-92
Glass Transition Temp, Tg	170 °C	TMA; Nominal; IPC-TM-650.2.4.24c
	175 °C	DSC; Nominal; IPC-TM-650.2.4.25c
Decomposition Temperature	325 °C	5% weight loss; TGA; IPC-TM-650.2.4.24.6
Flammability, UL94	V-0

Descriptive Properties
Methylene Chloride Resistance (% Weight Change)	0.7	IPC-TM-650.2.3.4.3
Pressure Cooker	Pass	60 min then solder dip @288ºC until failure (max 10 min.); IPC-TM-650.2.6.16 (modified)
T260 (minutes)	4-8	IPC-TM-650.2.4.24.1
Z Axis Expansion (%)	4.1	50ºC to 260ºC; IPC-TM-650.2.4.41

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