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Alignment deficiencies at PLCC

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Description:
Lateral alignment fault at a PLCC. This fault is acceptable for low requirements (Class A, B) but non-conforming for high requirements (Classs C).

Causes/Remedy:
  • placing faults: teaching, tolerances, systematic faults
  • floating of components during reflow process
  • vibration during soldering


Source: SEM
Alignment fault of a PLCC
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