Solution36

Defect : Solder Skips

Process/machine infomation :

Board type - Single sided

Solderability protection - OSP

Flux carrier - Alcohol

Preheat type - Infrared

Process solutions

• Conveyor speed too fast.

  a. Dwell time too short.

• Use chip or turbulent wave.

• Use Omega wave.

• Not enough flux.

• Wave height too low on one or both
  waves.

Board and design solutions

• Board/component solderability.

• Component layout, orientation.