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Chemically Resistant adhesives

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Epoxy Technology EPO-TEK® H35-175MPLV Electrically Conductive, Silver Epoxy
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy, Electrically Conductive

Material Notes: Product Description: EPO-TEK® H35-175MPLV is a single component, silver-filled, electrically conductive epoxy designed for semiconductor die attach applications found in hybrids, JEDEC, and opto-electronic packaging. It is a lower viscosity version of EPO-TEK® H35-175MP

Advantages & Application Notes:

  • Performs exceptionally well as a die attach for small chips such as GaAs, LEDs and diodes.
  • Capable of resisting 260°C green reflow process, low outgassing in hermetic lid-seal processes near 300°C, and organic burn-in up to 150°C/1000 hours storage.
  • Certified to MIL-STD 883/Test Method 5011.
  • Capable of JEDEC Level II die-attach packaging on die-paddles and lead-frames.
  • Widely used epoxy; popular choice for silver-filled epoxies; opto-packaging, hybrids, and many types of substrates including kovar, ceramic and BT.
  • Available in many different viscosity ranges
  • Designed for improved flow for smaller needle gauge dispensing, or stamping operations

Information Provided by Epoxy Technology

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Physical PropertiesOriginal ValueComments
Specific Gravity 2.65 g/cc
Particle Size <= 20 µm
Viscosity 10500 - 16500 cP
@Temperature 23.0 °C
10 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 495000 psiStorage
Shear Strength 1864 psiLap
 >= 3400 psiDie
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity <= 0.00050 ohm-cm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 47.0 µm/m-°CBelow Tg
 190 µm/m-°CAbove Tg
Thermal Conductivity 1.50 W/m-K
Maximum Service Temperature, Air 180 °CContinuous
 280 °CIntermittent
Minimum Service Temperature, Air -55.0 °CContinuous
 -55.0 °CIntermittent
Glass Transition Temp, Tg >= 100 °CDynamic Cure 20—300°C /ISO 25 Min; Ramp -10—200°C @ 20°C/Min
Decomposition Temperature 330 °CDegradation Temperature
 
Processing PropertiesOriginal ValueComments
Cure Time 1.00 hour
@Temperature 180 °C
Minimum Bond Line
 1.50 hour
@Temperature 165 °C
Minimum Bond Line
Pot Life 40320 min
Shelf Life 12.0 Month
@Temperature -40.0 °C
 
Descriptive Properties
ColorSilver
ConsistencySmooth paste
Ionic Impurities NH432 ppm
Number of ComponentsSingle
Thixotropic Index2.66
Weight Loss0.04%200°C
 0.06%250°C
 0.19%300°C

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PPOXYT174 / 141213

Chemically Resistant adhesives

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