Application Note

Silicon Wafer Inspection With SWIR Cameras

Source: Raptor Photonics Limited

Silicon inspection can be a challenging problem for silicon and semi-conductor manufacturers in terms of pattern alignment, pattern defect inspection and edge position bonding inspection. During the manufacturing process, foreign particles and defects may appear on the top, bottom, inside or in between the wafers. It is important to find the location of these defects. Defects do not initially affect the chips functionality, but they do end up affecting the chips reliability. This article discusses the use of silicon wafer inspection with SWIR cameras.

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