Low Temperature Pressure-Less Sintering

With the demand for high-powered electronics rapidly increasing, there is a growing need for high-thermal-conductivity adhesives that meet RoHs requirements.

NAMICS’ H9890 series is a pressure-less, low-temperature sintering silver paste combined with resin reinforcement and low-modulus technology. The result is a high thermal conductivity adhesive offering unmatched performance and world class reliability to meet the most demanding applications.

This novel technology provides a durable die-attach material with industry leading thermal and electrical conductivity for next generation power RF, power discrete, and power module packages. The robust formulation is compatible with standard die bonding equipment and offers outstanding manufacturability with long dispense life. Open times exceed six hours and staging times are up to 2 days for unrivaled flexibility on the production floor.

Pressure-less Sintering

Replace Pb and AuSn solder with similar thermal conductivity and is compatible with standard die-attach paste applications
Complete pressure-less solution
Compatible with a variety of surfaces such as gold, silver, PPF and bare copper

Thermal performance

Industry leading performance
Equivalent to AuSn solder

Excellent workability

Unmatched workability designed for high-volume manufacturing and minimized downtime. The end result is an exceptional thermal conductive adhesive with flexibility in manufacturing process.

Working time of 48 hours
Continuous dispense for 16 hours
Open time is over 6 hours
Staging time is over 24 hours

Dispensing and Printing

Dispense Type

Capable of jet dispensing with a deposit size down to 200 microns (8 mil)

Print Type

Uniform shape after stencil printing
Smooth surface
Slow drying for high-volume production

	H9890-6A	H9890-6	H9890-11A	H9890-11
High thermal conductivity	*		*
Low modulus		*		*
Bare copper compatible			*	*
Thermal conductivity	140 W/mK	60 W/mK	140 W/mK	60 W/mK
Modulus	17.0 GPa	6.0 GPa	13.5 GPa	6.5 GPa
Die shear strength	50 N/mm2	35 N/mm2	60 N/mm2	50 N/mm2

Resources

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