‘Soldering’ with a laser

‘Soldering’ with a laser

Thijs Beckers @ elektormagazine.com writes about a new experimental method of connecting electronics components together using a laser beam.

Researchers from the University of Saarland have, together with colleagues from Helsinki, discovered a new material which can connect electronic components together using a chemical method. Multiple very thin layers (1000x thinner than a human heir) of aluminum and ruthenium are placed on top of each other. When an intense laser beam is pointed at it, a large amount of heat is released in the nanometer thin layer and a homogeneous layer of ruthenium-aluminide is formed.

This brief heat can reach a temperature of 2000 °C. With this, components close together can be connected to each other without the addition of solder. The ruthenium-aluminide forms a layer between the components, just like solder does.

‘Soldering’ with a laser – [Link]

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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