Epoxy Technology EPO-TEK® H44 Gold-Filled, Electrically Conductive Epoxy

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Epoxy Technology EPO-TEK® H44 Gold-Filled, Electrically Conductive Epoxy
Categories:	Polymer; Adhesive; Thermoset; Epoxy; Epoxy, Electrically Conductive
Material Notes:	Product Description: EPO-TEK® H44 is a single component, gold-filled, electrically conductive epoxy adhesive designed for hybrid microelectronic packaging. Advantages & Application Notes: High viscosity paste. Users should not expect the same creamy viscosity as silver-filled epoxies. Design engineers need to be aware of longer lead times and shorter shelf-life than traditional silver-filled epoxies. Suggested applications for hybrid/hermetic packaging: Die-attach and SMD attach instead of silver epoxy; avoiding silver migration inside sealed packages; medical and aerospace electronics and circuits. Passes NASA low outgassing standard ASTM E595 with proper cure Information Provided by Epoxy Technology
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Physical Properties	Metric	English	Comments

Particle Size	<= 50 µm	<= 50 µm
Viscosity	>= 819200 cP @Temperature 23.0 °C	>= 819200 cP @Temperature 73.4 °F	0.5 rpm

Mechanical Properties	Metric	English	Comments
Shear Strength	>= 23.4 MPa	>= 3400 psi	Die

Electrical Properties	Metric	English	Comments
Volume Resistivity	<= 0.00050 ohm-cm	<= 0.00050 ohm-cm

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	200 °C	392 °F	Continuous
	300 °C	572 °F	Intermittent
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F	Continuous
	-55.0 °C	-67.0 °F	Intermittent
Glass Transition Temp, Tg	>= 100 °C	>= 212 °F	Dynamic Cure 20—200°C /ISO 25 Min; Ramp -10—200°C @ 20°C/Min
Decomposition Temperature	388 °C	730 °F	Degradation Temperature

Processing Properties	Metric	English	Comments
Cure Time	60.0 min @Temperature 150 °C	1.00 hour @Temperature 302 °F	Minimum Bond Line
Shelf Life	6.00 Month @Temperature 25.0 °C	6.00 Month @Temperature 77.0 °F

Descriptive Properties
Color	Brown
Consistency	Smooth thick paste
Number of Components	Single
Weight Loss	0.06%		300°C

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PPOXYT048 / 141087

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