Park Aerospace Nelco® N7000-2 V0 Toughened Polyimide Laminate and Prepreg

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Park Aerospace Nelco® N7000-2 V0 Toughened Polyimide Laminate and Prepreg
Categories:	Polymer; Thermoset; Polyimide, TS
Material Notes:	The Nelco N7000-2 V0 series is a high-Tg polyimide using a toughened resin chemistry to achieve a UL 94-V0 designation. This advanced material is designed for use in a wide variety of applications that include fine geometry multilayer constructions and extreme reliability. Key Features and Benefits: Polyimide resin chemistry Lead-free assembly compatibility Supports current and previous military and industrial standards Reliable plated-through holes Reliable processing Applications/Qualifications: Fine-Line Multilayers Backplanes Surface-Mount Multilayers BGA Multilayers Avionics Down-well Petroleum Burn-in Boards Information provided by Park Electrochemical Corp.
Key Words:	PI
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Physical Properties	Original Value	Comments

Density	1.93 g/cc	50% Resin Content; Internal Method
Water Absorption	0.32 %	IPC-TM-650.2.6.2.1

Mechanical Properties	Original Value	Comments
Modulus of Elasticity	3800 ksi	Y; ASTM D3039
	4500 ksi	X; ASTM D3039
Poissons Ratio	0.16	Y; ASTM D3039
	0.183	X; ASTM D3039
Peel Strength	5.20 pli	at elevated temperature; IPC-TM-650.2.4.8.2a
	5.70 pli	after exposure to process solutions; IPC-TM-650.2.4.8
	5.80 pli	after solder float; IPC-TM-650.2.4.8

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+12 ohm-cm	C - 96/35/90; IPC-TM-650.2.5.17.1
	1.00e+14 ohm-cm	E - 24/125; IPC-TM-650.2.5.17.1
Surface Resistance	1.00e+12 ohm	C - 96/35/90; IPC-TM-650.2.5.17.1
	1.00e+12 ohm	E - 24/125; IPC-TM-650.2.5.17.1
Dielectric Constant	3.8 @Frequency 1e+9 Hz	RF Impedance; IPC-TM-650.2.5.5.9
	3.8 @Frequency 1e+10 Hz	Split Post Cavity
	4.0 @Frequency 1e+6 Hz	TFC/LCR Meter; IPC-TM-650.2.5.5.3
Dielectric Strength	1200 V/mil	IPC-TM-650.2.5.6.2
Dielectric Breakdown	>= 50000 V	IPC-TM-650.2.5.6
Dissipation Factor	0.0090 @Frequency 1e+6 Hz	TFC/LCR Meter; IPC-TM-650.2.5.5.3
	0.010 @Frequency 1e+10 Hz	Split Post Cavity
Arc Resistance	124 sec	IPC-TM-650.2.5.1

Thermal Properties	Original Value	Comments
CTE, linear	5.56 - 6.67 µin/in-°F @Temperature -40.0 - 125 °C	IPC-TM-650.2.4.41
Glass Transition Temp, Tg	243 °C	TMA; IPC-TM-650.2.4.24c
	250 °C	DSC; IPC-TM-650.2.4.25c
Decomposition Temperature	390 °C	5% weight loss; TGA; IPC-TM-650.2.4.24.6
Flammability, UL94	V-0

Descriptive Properties
Methylene Chloride Resistance (% Weight Change)	0.4	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)	30+	IPC-TM-650.2.4.24.1
T300 (minutes)	3.5
Z Axis Expansion (%)	1.7	50ºC to 260ºC; IPC-TM-650.2.4.41

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