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Chemically Resistant adhesives

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

Material Notes: Product Description: EPO-TEK® H35-175MP is a single component, silver-filled, electrically conductive epoxy designed for semiconductor die attach applications found in hybrids, JEDEC, and opto-electronic packaging. Low viscosity version of EPO-TEK® H31.

Advantages & Application Notes:

  • Exhibits a smooth, flowing consistency that is adaptable to conventional processing methods such as dispensing and screen printing. See Technical Paper #43 from our website link for hints and best practices for high speed auger screw dispensing
  • 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 –yields low levels of water extractable monovalent ions such as Chlorides.
  • Passes NASA low outgassing standard ASTM E595 with proper cure
  • 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

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 3.07 g/cc
Particle Size <= 20 µm
Viscosity 22000 - 28000 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 83
Tensile Modulus 1.107e+6 psiStorage
Shear Strength >= 2000 psiLap
 >= 3400 psiDie
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity <= 0.00050 ohm-cm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 31.0 µm/m-°CBelow Tg
 97.0 µm/m-°CAbove Tg
Thermal Conductivity 1.50 W/m-K
Maximum Service Temperature, Air 200 °CContinuous
 300 °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 372 °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
ColorBright silver
ConsistencySmooth thixotropic paste
Ionic Impurities NH439 ppm
Number of ComponentsSingle
Thixotropic Index4
Weight Loss0.13%200°C
 0.14%250°C
 0.28%300°C

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PPOXYT045 / 141084

Chemically Resistant adhesives

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