LOCTITE® ABLESTIK QMI519
Features and Benefits
This 1-part, BMI acrylate-based, conductive die-attach adhesive is designed for bonding integrated circuits and components to metal substrates.
LOCTITE® ABLESTIK QMI519 is a silver, thermally and electrically conductive die-attach adhesive paste for bonding integrated circuits and components to metal substrates. It’s typically used for QFN, SOIC and SO package applications and is compatible with a wide variety of metals and ceramic surfaces, copper, silver, palladium and alloy 42. It’s designed to achieve higher UPHs than conventional oven cured adhesives. Maximum productivity is reached through in-line curing, either directly on the die bonder using a post-die bond heater or on the wire bonder preheater. Studies have also shown that parts cured on the die bonder have improved coplanarity. LOCTITE ABLESTIK QMI519 is formulated with a BMI acrylate-based resin and cures when exposed to heat.
- Offers a void-free bond line
- Hydrophobic
- Strong resistance to delamination
- Stable at high temperatures
Documents and Downloads
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Additional Documents
Technical Information
Applications | Die attach |
Coefficient of thermal expansion (CTE) | 40.0 ppm/°C |
Cure type | Heat cure |
Extractable ionic content, Chloride (CI-) | 20.0 ppm |
Extractable ionic content, Fluoride (F-) | 20.0 ppm |
Extractable ionic content, Potassium (K+) | 20.0 ppm |
Extractable ionic content, Sodium (Na+) | 20.0 ppm |
RT die shear strength | 59.0 kg-f |
Young's modulus, @ 25.0 °C | 5300.0 N/mm² (769000.0 psi ) |