Practical Set-Up, Qualification of Cleaning Process in PCB Assembly


Online Events


Mon, June 08, 2020


Presenter: Bob Willis, SMTA Europe

Most of the industry worldwide has been running no clean processes for many years and often, understandably, neglected important issues like design for cleaning, selecting compatible components and compatibility between cleaning materials and flux residues. With increased miniaturisation and the demands of modern circuits cleaning has come back to eliminate selected failures. Conformal coating is another process which has demanded special levels of surface cleanliness to guarantee coating adhesion and long-term reliability. Although there are high reliability producers that use coating with no clean, others want that extra confidence.

Topics included:

  • Testing boards, components and assemblies
  • International specifications and reference books
  • Ionic testing & non-ionic testing
  • Surface insulation measurement
  • Ion Chromatography (IC) test techniques
  • Shop floor test methods
  • Testing frequency during PCB fabrication & assembly
  • Cleanliness failure types


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