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Copper core aluminium wire targets power applications

11th May 2020
Mick Elliott
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A next generation wire for power applications has been released by Heraeus Electronics.

The product named CucorAl Plus renews the existing product CucorAl offering superior electrical and mechanical properties combined with a better processability.

“By replacing aluminium wire with CucorAl Plus, our customers can extend module lifetime by a factor of five without changing the module design," says Dr. Klemens Brunner, President of Heraeus Electronics. "This specifically caters to the e-mobility industry needing new materials and components that function in demanding environments and have to deliver high reliability.”

CucorAl Plus enables higher power density within the module design by fusing current capabilities and providing a 20% higher ampacity.

The wire is designed for operation temperatures of up to 200°C.

Copper core aluminium wire CucorAl Plus can be applied on standard bonding and chip technology, as well as on all sensitive active surfaces, DBCs, AMB substrates or leadframes. Manufacturers can use conventional aluminium bonding equipment.

Heraeus will provide high-quality materials, and make its process knowledge available to customers.

In its power electronics application centres, the company helps manufacturers to improve their processes by jointly simulating them and developing prototypes.

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