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Chemically Resistant adhesives

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Lord Adhesives CoolTherm™ MD-240 Conductive Adhesive
Categories: Polymer; Adhesive; Thermoset

Material Notes: LORD CoolTherm™ MD-240 silver-filled conductive adhesive offers excellent thermal and electrical conductivity. It is designed for use in thermally demanding die attach applications such as microprocessor, power semiconductor and VLSI assembly. CoolTherm MD-240 adhesive is low stress, making it suitable for use with large die. CoolTherm MD-240 adhesive provides excellent adhesion to a wide variety of surfaces including silicon, silver, gold and copper. Low ionic levels make it ideally suited for demanding semiconductor and hybrid assembly applications.

Features: may be applied by high-speed syringe dispensing, pin transfer or printing. provides a working life of up to 72 hours after loading a syringe into the dispensing equipment at room temperature; provides a working life of >12 hours when applied by pin transfer or printing methods.

All information provided by Lord.

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Physical PropertiesOriginal ValueComments
Specific Gravity 3.20 g/cc
Brookfield Viscosity 13000 cP
@Temperature 25.0 °C
CP51, 5 rpm
 
Chemical PropertiesOriginal ValueComments
Ionic Impurities - Na (Sodium) <= 10 ppmcured
Ionic Impurities - K (Potassium) <= 10 ppmcured
Ionic Impurities - Cl (Chloride) <= 50 ppmcured
 
Mechanical PropertiesOriginal ValueComments
Shear Strength 5690 psi
@Temperature 25.0 °C
Die Shear, cured
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 0.00010 ohm-cm
@Temperature 25.0 °C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 60.0 µm/m-°Calpha 1 cured
 130 µm/m-°Calpha 2, cured
Thermal Conductivity 11.0 W/m-Kcured
Glass Transition Temp, Tg 109 °Ccured, by DMA
 
Processing PropertiesOriginal ValueComments
Shelf Life 6.00 Month
@Temperature -30.0 °C
from date of manufacture when stored in original, unopened container
 
Descriptive Properties
AppearanceSilver Paste
Storage Modulus3400 MPa25C, cured

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PLORD9235 / 232591

Chemically Resistant adhesives

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