Light emission noise detection and characterization

Details Light emission noise detection and characterization Light emission noise detection and characterization

1998-07-01

2000-04-18

Lee, John R.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250207, 324501, 324750, 356311, H01D 4014

Patent

active

060518286

ABSTRACT:
An integrated circuit 100 emits light corresponding to a defect in the integrated circuit 100. The light is transformed to electrical signals by a photomultiplier 206. The spectral content of the electrical signals is compared with predetermined or known noise signatures to identify the defects in the integrated circuit 100.

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