IC Chip Photography
High quality IC chip photography is the principle of IC chip circuit analysis, accompany with the miniature IC chip feature size, increase profile as well as the layer count, IC chip reverse engineering analysis has higher and higher requirement on the photography completeness and definition.
IC Chip Photography
The establishment of photography database is a long and complicate process, the critical step is split joint of photography from same layer and photography registration from adjacent layers. When collecting photography under certain magnifying times, Each photography will correlate with a certain photography area, after microscopy photography from certain layer, will normally obtain a photography grid which has a few of arrays, joint these IC chip imaging from same layer will form the photography of the whole layer.
According to the cor-relationship, IC chip photography from random layer can be aligned. Through operation mentioned above, complete photography database can be formed.
IC Chip Photography and imaging
Before proceed to IC chip imaging, a series of pre-treatment is required for subsequent single integrated circuit photography, these pre-treatment include photography distortion correction, obliquity correction, rotation, photography color and brightness adjustment, etc.
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