5105

The KLA 5105 is an electronic module used within automated optical wafer defect inspection tools. The module is designed to support wafer substrate sizes of 200 mm and 300 mm. The KLA 5105 uses a VME bus architecture for integration into the inspection tool backplane.^[1]

The KLA 5105 processes high-resolution visual signals from optical sensor arrays to detect pattern anomalies, particles, and surface micro-defects. The module employs hardware-level signal filtering to isolate nanometer-scale anomalies from complex background patterns without reducing wafer throughput. Signal processing is performed in real time as an optical image array digitization operation.^[1]

The KLA 5105 is deployed in semiconductor fabrication facilities for inline defect detection during critical photolithography and etch stages. The module is also used for chemical mechanical planarization (CMP) process control, monitoring for slurry residue and surface scratches. After defect detection, wafers may proceed to subsequent processing steps such as metal deposition.^[1]

The KLA 5105 is applied to patterned wafer defect detection after lithography and etch processes, capturing post-etch residues and bridge faults. The module supports CMP process control by monitoring slurry residue and surface gouges. The KLA 5105 also serves in fab tool retrofit and maintenance, extending the operating life of 200 mm wafer fabrication lines without full system replacement.^[1]