Product novelty 26. August 2024

Inline Hyperspectral Inspection by SCHILLER AUTOMATION

Hyperspectral inspection (HSI) is increasingly being used to check electronic components. SCHILLER AUTOMATION has developed an inline station that checks components for adhesions after the cleaning system.

Hyperspectral imaging captures information about the electromagnetic spectrum in a broad wavelength range. In this way, defects, contaminants, or other anomalies in the components can be identified that may be overlooked by conventional visual inspection techniques. The resulting data sets can be used to identify material differences and assess the chemical composition of materials. Any impurities present are reliably detected. This allows for more precise quality control and early detection of potential problems, which ultimately improves product quality and reduces downtime.

SCHILLER AUTOMATION has developed an inline HSI station with an integrated conveyor belt to achieve this quality objective in production lines with high throughput. The system accepts workpiece carriers with the components inside via a SMEMA interface (belt-to-belt transfer) and positioning in the pre-position. Here, the Data Matrix Code (DMC) of the workpiece carrier is recorded and its contents temporarily stored. An X/Y/Z handling system takes over the workpiece carrier and positions it under the camera. The camera is automatically triggered after positioning, the workpiece carrier is moved and placed back on the belt after the pick-up has been completed.

The hyperspectral camera takes line-by-line images with different spectral channels between 400 and 1,000 nm wavelength. In addition, the control system, in conjunction with the MES (Manufacturing Execution System) and a big data storage system, ensures traceability and enables the data to be evaluated in parallel.