SEHO to highlight new AOI function at the 16th Annual SMTA Atlanta Expo & Tech Forum
Written by dburford
Tuesday, 10 April 2012 14:56
SEHO Systems GmbH, a manufacturer of automated soldering systems and customer-specific solutions, will showcase the new AOI function for its best-selling selective soldering system — the SEHO PowerSelective — at the upcoming SMTA 16th Annual Atlanta Expo & Tech Forum, scheduled to take place Thursday, April 19, 2012 from 9:30 a.m.-4 p.m. at the Gwinnett Civic Center in Duluth, GA.
SEHO has developed an automated optical inspection (AOI) system that can be embedded directly in the selective soldering process. The system is used for the detection of soldering defects such as non-wetting or insufficient wetting, missing pin, or bridging. The inspection begins immediately after the soldering process when the printed circuit board (PCB) is fixed in the gripper of the soldering machine.
The AOI system can be integrated easily into a SEHO PowerSelective, offering remarkable cost savings in floor space and board handling equipment. Depending on the complexity of the products to be soldered, the AOI system can be activated if solder joints are considered to be critical or it may be deactivated for uncomplicated boards, thus reducing overall production time. While using the AOI system in the production process, the unit allows separation of assemblies with defects and automatically leads them to a repair station instead of returning them to the production line. The AOI system is equipped with a special 5 MP RGB camera and LEDs for lighting in different colors. It provides a field of view of 51 x 38 mm with 20 µm pixel resolution. The software that belongs to the system provides a comprehensive component library to ensure easy programming.