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News

The modelling option ... lead-free soldered circuitry faces a reliability onceover

TWI (The Welding Institute) : 04 April, 2005  (New Product)
The reliability of printed circuit boards which use lead-free solder can now be modelled using calcePWA software at TWI.
The reliability of printed circuit boards which use lead-free solder can now be modelled using calcePWA software at TWI.

The software simulates the effect of temperature profiles and mechanical loading over the design life of a PCB, to predict times to failure. This approach indicates where joints will fail as a function of thermal and mechanical loadings.

Costly field failures can be avoided by modifying PCBs at the design stage. TWI can simulate boards made with leaded or unleaded solders, for a range of industry sectors including military, automotive, avionics/space and consumer electronics.
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