Technology file

Resistance Welding

Resistance welding fine-pitch copper interconnections
Fine-pitch copper interconnections

Small scale resistance welding is used extensively in electronic packaging and sensor/transducer assembly. This joining process uses both heat and pressure to form a weld, the heat being generated by the resistance of the materials to the flow of electric current. The main advantages of resistance welding are that it is a low-cost, well proven process capable of producing joints quickly and reliably.

Expertise

The Microtechnology Section's expertise in this technology is the product of five decades of close involvement in all aspects of resistance-based welding processes. Extensive know-how underpins a comprehensive range of consultancy, training and R&D services.

Project work

Project work has included:

  • Hermetic packaging of electronics for harsh environments
  • Manipulation and joining of sensor elements below 10µm diameter
  • Joining of dissimilar materials
  • Product and process design optimisation, production line auditing

If you require further information, please email to micro@twi.co.uk.

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