Arlon Electronic Materials 38N High Performance Polyimide Low-Flow

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Arlon Electronic Materials 38N High Performance Polyimide Low-Flow
Categories:	Polymer; Thermoset; Polyimide, TS
Material Notes:	38N is an improved polyimide low-flow prepreg suitable for bonding multilayer polyimide rigid-flex, attaching heat sinks to polyimide MLBs, or other applications where minimal and uniform resin flow is required. Novel chemistry ensuring faster and more uniform resin cure for minimal and consistent resin flow, preventing excessive flow into clearance/relief areas Tg = 200°C and expansion characteristics typical of polyimide greatly improves PTH reliability Improved bond strength to Kapton® polyimide of up to 50% compared with conventional polyimide low-flow or no-flow products Curable at temperatures as low as 350°F Excellent thermal stability Improved bond strength to copper and other metals for excellent performance in heat sink bonding applications Electrical and mechanical properties meeting the requirements of IPC-4101/42 Compatible with lead-free solder processing RoHS/WEEE compliant Typical Applications: Bonding multilayer polyimide rigid-flex Attaching heat sinks to polyimide MLBs Other applications where minimal and uniform resin flow is required Information provided by ARLON Electronic Materials.
Vendors:	Arlon Materials for Electronics (MED) is a major manufacturer of specialty high performance laminate and prepreg materials for use in a wide variety of printed circuit board (PCB) applications and in several distinctive markets. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Water Absorption	<= 1.0 %	<= 1.0 %	IPC TM-650 2.6.2.1

Mechanical Properties	Metric	English	Comments
Tensile Strength	221 MPa	32000 psi	IPC TM-650 2.4.18.3
Modulus of Elasticity	14.5 GPa	2100 ksi	IPC TM-650 2.4.18.3
Flexural Strength	414 MPa	60000 psi	IPC TM-650 2.4.4
Poissons Ratio	0.18	0.18	ASTM D3039
Shear Modulus	6.14 GPa	891 ksi	Calculated
Peel Strength	0.912 kN/m	5.20 pli	To Kapton, After Solder
	1.03 kN/m	5.90 pli	To Kapton, As Received
	1.49 kN/m	8.50 pli	To Copper (1 oz./35 micron); After Thermal Stress; IPC TM-650 2.4.8

Electrical Properties	Metric	English	Comments
Volume Resistivity	8.20e+13 ohm-cm	8.20e+13 ohm-cm	C96/35/90; IPC TM-650 2.5.17.1
	4.70e+15 ohm-cm	4.70e+15 ohm-cm	E24/125; IPC TM-650 2.5.17.1
Surface Resistance	4.40e+12 ohm	4.40e+12 ohm	C96/35/90; IPC TM-650 2.5.17.1
	1.20e+15 ohm	1.20e+15 ohm	E24/125; IPC TM-650 2.5.17.1
Dielectric Constant	4.25 @Frequency 1e+6 Hz	4.25 @Frequency 1e+6 Hz	may vary with resin %; IPC TM-650 2.5.5.3
Dielectric Strength	63.0 kV/mm	1600 kV/in	IPC TM-650 2.5.6.2
Dissipation Factor	0.010 @Frequency 1e+6 Hz	0.010 @Frequency 1e+6 Hz	IPC TM-650 2.5.5.3
Arc Resistance	125 sec	125 sec	IPC TM-650 2.5.1

Thermal Properties	Metric	English	Comments
CTE, linear	17.0 µm/m-°C	9.44 µin/in-°F	IPC TM-650 2.4.41
CTE, linear, Transverse to Flow	54.0 µm/m-°C	30.0 µin/in-°F	z, below Tg; IPC TM-650 2.4.24
	157 µm/m-°C	87.2 µin/in-°F	z, above Tg; IPC TM-650 2.4.24
Thermal Conductivity	0.300 W/m-K	2.08 BTU-in/hr-ft²-°F	ASTM E1461
Glass Transition Temp, Tg	200 °C	392 °F	TMA; IPC TM-650 2.4.24
Decomposition Temperature	311 °C	592 °F	Onset; IPC TM-650 2.3.41
	330 °C	626 °F	5 percent; IPC TM-650 2.3.41
Flammability, UL94	V-0	V-0

Descriptive Properties
IPC Delamination - T260 (minutes)	50		IPC TM-650 2.4.24.1
IPC Delamination - T288 (minutes)	5		IPC TM-650 2.4.24.1
IPC Delamination - T300 (minutes)	3		IPC TM-650 2.4.24.1
Z-Axis Expansion (%)	1.5		IPC TM-650 2.4.24 (50-260°C)

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PARLM9877 / 149030

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