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Type of Defect: |
Al layer defect (2/2) |
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Description: |
Discoloration or Crack of the aluminium layer caused by chemical reaction (as time elapse) |
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Observation Method: |
Visible by the human eye |
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Recommendation Upon Observation: |
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Other Evaluation Method: |
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Cause |
Countermeasure |
| Chemical attack |
Adjust Al layer thickness (too thin) |
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Chemical attack |
Choose appropriate coating materials (ex. Pot life, contamination) |
| Humidity |
Adjust Al layer thickness (too thin) |
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Humidity |
Adjust coating layer thickness (too thin) |
| Humidity |
Adjust sputtering condition (ex. Vacuum level) |
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Humidity |
Choose appropriate coating materials (ex. Pot life, contamination) |
