EPO-TEK® H21D

About
EPO-TEK® H21D is a two component, high Tg, silver-filled epoxy designed for chip bonding in microelectronic and optoelectronic applications.&&

Product Description
Generic环氧树脂
Material StatusCommercial: Active
FeaturesConductive,Low odor
AvailabilitysAfrica & Middle East ,North America,Asia Pacific,Europe

Technical Data
PHYSICALNominal valueUnitTest method
Particle size< 45.0µm
Ionic type 
Cl-64ppm
Na+72ppm
NH4+121ppm

Supplementary informationNominal valueUnitTest method
Degradation Temperature416
Die Shear Strength(>10 kg,23℃)23.4MPa
working temperature 
Continuous-55 to 250
Intermittent-55 to 350
Storage Modulus5.53GPa
Thixotropic index2.60 
Heating reduction 
200℃0.030%
250℃0.060%
300℃0.17%

Uncured PropertiesNominal valueUnitTest method
colour 
Silver 
Density 
Part B2.13g/cm³
Part A2.44g/cm³
viscosity
23℃14 to 20Pa·s
Curing time
150℃1.0hr
storage stability900min

Cured PropertiesNominal valueUnitTest method
Shore hardness
Shaw’s D60 
lap shear strength
23℃10.4MPa
Volume resistivity
23℃< 9.0E-4ohms·cm

THERMALNominal valueUnitTest method
4.2E-5cm/cm/℃
2.3E-4cm/cm/℃
Glass transition temperature> 100
Linear coefficient of thermal expansion
MD 
Thermal conductivity coefficient1.0W/m/K
Thermosetting components 
Component A按重量计算的混合比: 10 
Component B按重量计算的混合比: 1.0 
Storage period
23℃52wk

Notes
1. Typical properties: these are not to be construed as specifications.
2. Dynamic Cure 20-200°C/ISO 25 Min; Ramp -10-200°C @ 20°C/Min
3. Below Tg
4. Above Tg
5. Part B
6. Part A
7. 20 rpm
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