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Chemically Resistant adhesives

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Epoxy Technology EPO-TEK® H20E-MP Electrically Conductive, Silver Epoxy
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy, Electrically Conductive

Material Notes: Product Description: EPO-TEK® H20E-MP is a two component, 100% solids silver-filled epoxy system designed specifically for chip bonding in microelectronic and optoelectronic applications. It is also used extensively for thermal management applications due to its high thermal conductivity. It has proven itself to be extremely reliable over many years of service and is still the conductive adhesive of choice for new applications. Also available in a single component frozen syringe.

Advantages & Application Notes:

  • Designed specifically to meet the requirements pertaining to MIL-STD 883/Test Method 5011 for military hybrids.
  • Processing info: It can be applied by many dispensing, stamping and screen printing techniques.
    • Dispensing: compatible with pressure/time delivery, auger screws, fluid jetting and G27 needles, in a single-component fashion.
    • Screen Printing: best using >200 metal mesh, with polymer squeegee blade with 80D hardness.
    • Stamping: small dots 6 mil in diameter can be realized.
  • Misc / Other notes
    • Many technical papers written over 30-40 year lifetime.
    • Over 1 trillion chips attached at a single company: no failures, Six Sigma and Certified Parts Supplier award winner.
    • Versatility in curing techniques including box oven, SMT style tunnel oven, heater gun, hot plate, IR, convection, or inductor coil.

    Information Provided by Epoxy Technology

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Specific Gravity 2.03 g/ccPart A
 3.07 g/ccPart B
Particle Size <= 45 µm
Viscosity 2200 - 3200 cP
@Temperature 23.0 °C
100 rpm
 
Chemical PropertiesOriginal ValueComments
Ionic Impurities - Na (Sodium) <= 50 ppm
Ionic Impurities - K (Potassium) <= 50 ppm
Ionic Impurities - Cl (Chloride) <= 200 ppm
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 75
Tensile Modulus 808700 psiStorage
Shear Strength 1475 psiLap
 >= 1700 psiDie
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity <= 0.00040 ohm-cm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 31.0 µm/m-°CBelow Tg
 158 µm/m-°CAbove Tg
Thermal Conductivity 2.50 W/m-KBased on standard method: Laser Flash
 29.0 W/m-KBased on Thermal Resistance Data: R = L x K-1x A-1
Maximum Service Temperature, Air 200 °CContinuous
 300 °CIntermittent
Minimum Service Temperature, Air -55.0 °CContinuous
 -55.0 °CIntermittent
Glass Transition Temp, Tg >= 80.0 °CDynamic Cure 20—200°C /ISO 25 Min; Ramp -10—200°C @ 20°C/Min
Decomposition Temperature 425 °CDegradation Temperature
 
Processing PropertiesOriginal ValueComments
Cure Time 5.00 min
@Temperature 150 °C
Minimum Bond Line
Pot Life 2880 min
Shelf Life 6.00 Month
@Temperature 25.0 °C
 
Descriptive Properties
ColorSilverPart A
 SilverPart B
ConsistencySmooth paste
Ionic Impurities NH4126 ppm
Mix Ratio by Weight1:1
Number of ComponentsTwo
Thixotropic Index4.63
Weight Loss0.59%200°C
 1.09%250°C
 1.67%300°C

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PPOXYT034 / 141073

Chemically Resistant adhesives

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