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Solder bridges at SO

more examples

Description:
Solder bridge at a SO-IC after wave soldering. This soldering defect is clearly discernible, since the gullwings are to the outside and thus easily inspectable

Causes/Remedy:
  • unsuitable soldering parameter: soldering angle, push-up, temperature, advance speed
  • unsuitable soldering direction
  • non-existance of solder thieves

Source: visual, optical inspection - general view
Solder bridge at a SO-IC

Description:
Solder bridges at a SO8 component. Example of bridge causing further bridges Folgebrücken.

Causes/Remedy:
  • unsuitable soldering parameter: soldering angle, push-up, temperature, advance speed
  • unsuitable soldering direction
  • non-existance of solder thieves

Source: visual, optical inspection - general view
Solder bridges at a SO8 component

Description:
Single solder bridge at a SO14. The rare single solder bridge can be classified as coincidental, if otherwise the soldering parameter show satisfactory results.

Causes/Remedy:
  • unsuitable soldering parameter: soldering angle, push-up, temperature, advance speed
  • unsuitable soldering direction
  • non-existance of solder thieves

Source: visual, optical inspection - general view
Solder bridge at a SO14

Description:
Solder bridge between a lead and the solder thief. (which is the outer pad and is only there to separate or tear off the solder from the last lead, depending on the soldering direction). This solder bridge has only optical importance, since the electrical function is given. No rework necessary, if not required otherwise.

Causes/Remedy:
  • unsuitable soldering parameter: soldering angle, push-up, temperature, advance speed
  • unsuitable soldering direction
  • non-existance of solder thieves

Source: SEM
Solder bridge at a SO
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