Lord Adhesives Thermosetâ„¢ ME-541 Underfill Encapsulant

Category	Polymer , Thermoset , Epoxy , Epoxy Encapsulant, Unreinforced
Manufacturer	Lord Adhesives
Trade Name	Thermoset™
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Lord Adhesives Thermosetâ„¢ ME-541 Underfill Encapsulant.pdf
Price	EMAIL US sales@lookpolymers.com

Material Notes:

LORD Thermosetâ„¢ ME-541 encapsulant is an anhydride free, high purity, semi-conductor grade epoxy underfill product developed for the encapsulation of densely populated area array flip chip devices. It is formulated with the necessary structural strength to handle overmolding processes.Thermoset ME-541 encapsulant is engineered to withstand 260Â°C peak reflow temperatures of lead-free solders.All information provided by Lord.

Physical Properties	Metric	English	Comments
Specific Gravity	1.53 g/cc	1.53 g/cc
Water Absorption	<= 0.90 %	<= 0.90 %
Viscosity	35000 cP @Temperature 25.0 Â°C	35000 cP @Temperature 77.0 Â°F	TA Rheometer

Mechanical Properties	Metric	English	Comments
Modulus of Elasticity	5.50 GPa	798 ksi	Storage
Shear Strength	60.0 MPa	8700 psi	Die

Thermal Properties	Metric	English	Comments
CTE, linear	32.0 Âµm/m-Â°C	17.8 Âµin/in-Â°F	Alpha 1
	100 Âµm/m-Â°C	55.6 Âµin/in-Â°F	Alpha 2
Glass Transition Temp, Tg	145 Â°C	293 Â°F	TMA

Component Elements Properties	Metric	English	Comments
Potassium, K	<= 0.00010 %	<= 0.00010 %
Sodium, Na	<= 0.00010 %	<= 0.00010 %

Electrical Properties	Metric	English	Comments
Volume Resistivity	5.30e+15 ohm-cm @Temperature 25.0 Â°C	5.30e+15 ohm-cm @Temperature 77.0 Â°F

Processing Properties	Metric	English
Cure Time	15.0 min @Temperature 165 Â°C	0.250 hour @Temperature 329 Â°F
	90.0 min @Temperature 150 Â°C	1.50 hour @Temperature 302 Â°F
Pot Life	1440 min @Temperature 25.0 Â°C	1440 min @Temperature 77.0 Â°F
Gel Time	3.00 min @Temperature 150 Â°C	3.00 min @Temperature 302 Â°F
Shelf Life	6.00 Month @Temperature -40.0 Â°C	6.00 Month @Temperature -40.0 Â°F

Descriptive Properties	Value	Comments
Appearance	Black
Chloride (%)	< 0.0045
Consistency	Liquid

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