SMTA International Conference Proceedings


LEAD-FREE WAVE SOLDER FLUX EVALUATION

Author: Michael Havener
Company: Benchmark Electronics, Inc
Date Published: 9/25/2005   Conference: SMTA International


Abstract: The European Union’s deadline to ban lead in electronic products is quickly approaching. To meet the challenges of lead-free soldering, a method to evaluate the performance of lead-free wave solder fluxes will be explored. Identifying the optimal water-soluble and no-clean chemistries is the objective of this testing. Existing wave solder fluxes for tinlead soldering will also be evaluated as a comparison and to determine if the lead-free chemistries can meet or exceed tin-lead performance.

The evaluation process will start with the selection of materials and test vehicle followed by two test phases to down select the candidate fluxes. Testing will evaluate barrel fill, solder joint formation and solder ball formation.



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