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Slovak university has developed an active solder for ultraso...
created · Updated
Deadline: Dec 11, 2021
Received 0 expressions of interest

Summary

An active soft solder based on zinc (Zn) with the addition of magnesium (Mg) and strontium (Sr) allows the direct soldering of non-metallic materials. It was developed by a team of a technical university in the Bratislava region in Slovakia and aims to license the technology.

Description

A solder has been designed by a team of researchers at a Slovakian technical university for high operating temperatures (350-420°C). In combination with ultrasound activation, it can be used for direct soldering without previous coating and without the use of flux. The wetting speed, the area of spread and the contact angle meet the strictest industrial criteria. Furthermore, the joints have a high shear strength. The solder is applicable in power electronics, in the energy industry and has many specific applications in progressive technologies of encapsulation such as ball grid array (BGA), flip chip technology (C4), chip-scale-package (CSP) and multi-chip-module (MCM). It is suitable for sequential or selective soldering and is designed for ultrasound, laser and combined soldering. It is a potential substitute for lead (Pb)-based solders for use at higher operating temperatures. The technology has been tested in real conditions and is ready for demonstration.

The university is looking for partners in the above industries to adopt this soldering technology under a license agreement.

Advantages & innovations

The main advantages of the technology are: its safety (non-toxic solder, does not contain Pb or other hazardous materials) and its higher operating temperatures. It also has excellent joint strength (21-35MPa).

Stage of development

Available for demonstration

Partner sought

Type: The university is seeking an industrial partner for licensing the technology. Field of activity: The invention belongs to the field of materials and processing of materials. Role of partner: - license agreement - the licensing and commercionalization of this technology is sought.

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