Special Wire Products

For special applications in which the reliability of gold is a “must”, and where bonding at room temperature is obligatory, Heraeus offers aluminum coated gold wires. The aluminum coating comes as an extremely thin layer. Aluminum coated bonding wires are a superior solution in order to improve the resistance in cycling tests, e. g. for automotive applications.

Insulated bonding wires are fabricated and prepared for bonding technology purposes. Heraeus can provide insulated bonding wires based on the product range of its own aluminum and gold standard materials. Ask Heraeus experts to coordinate your needs and specifications.

Palladium bonding wires show their advantage in applications at high exposure temperatures, along with requirements for good loop stiffness and hardness. Compared with gold and aluminum bonding wires, palladium bonding wires have considerably higher cold and warm hardness combined with a lower electrical conductivity. Palladium bonding wires made by Heraeus have a homogeneous chemical composition and stable mechanical properties. The use of protective gas in ball bonding improves the ball roundness and constancy of the ball size.

The substitution of gold with silver permit cost savings. The resulting properties are different from conventional gold wires and therefore the applicability of these wires is not universal. In certain applications the cost saving potential can be fully exploited. Please discuss with your Heraeus wire expert the viability of such wires for your application.

Heraeus works with customers who need interconnect materials with special chemical, mechanical, or electrical properties. Take advantage of our vast wealth of technical expertise and resources. We can help you develop solutions that precisely meet your specifications.