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US 2013/0094531 A1Published application
Visual indicator for semiconductor chips for indicating mechanical or esd damage
AssigneeEmcore Corporation
InventorsRichard Carson, Elaine Taylor, Douglas Collins
Life of this patent
Estimating the term…
Abstract
A semiconductor device including a semiconductor substrate having a surface including an active semiconductor device including one of a laser and a photodiode; and a visual indicator disposed on the semiconductor body and at least adjacent to a portion of said active semiconductor device, the indicator having a state that shows if damage to the active semiconductor device may have occurred.
Claims19
A semiconductor device comprising:
- a semiconductor substrate having a surface including an active semiconductor device directly surrounded by an inactive semiconductor area, the active semiconductor device including one of a laser and a photodiode;
- and
- a visual indicator disposed on said semiconductor body and at least adjacent to a portion of said active semiconductor device, the indicator having a state that shows that damage to the active semiconductor device may have occurred.
A method a forming a semiconductor device comprising:
- forming a semiconductor substrate having a surface including an active semiconductor device directly surrounded by an inactive semiconductor area, the active semiconductor device including one of a laser and a photodiode;
- and
- depositing a visual indicator structure on said semiconductor body and at least adjacent to a portion of said active semiconductor device, the indicator having a state that shows that damage to the active semiconductor device may have occurred.
Dependencies are inferred from the claim text.