May, 2020


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Page 61 Automated X-Ray Inspection for Power Electronics Continued from previous page


standardized inspection objects, in order to inspect objects with a wide range of geometries on com- mon workpiece carrier sizes up to 15.8 x 15.8 in. (400 x 400 mm) or 19 x 12.6 in. (480 x 320 mm),” he says. Eschenburg cites the integration of the loading


system in the X-ray system as one of the most impor- tant advantages of this solution. In addition, the X- ray system is linked to the belt conveyor system in electronics production, in order to ensure the full automated transport of the workpiece carriers. In practice, each electronics manufacturer has


very different requirements for automated process- es. The integration of a new X-ray system in produc- tion is always a customer-specific project. To short- en the time required for such projects, Viscom pro- vides finished designs for various workpiece carri- ers. “Prefab ricated solutions enable us to significantly reduce the development time for such projects,” explains Eschenburg.


Networking the Systems Eschenburg says that the net-


working of the individual inspection systems is still an underutilized resource. One factor is the time and effort required to select the correct solder paste and to configure the paste quantity and paste pressure correctly. The solder paste inspection is


then used to check whether the paste was applied at the sites where it is needed. If a paste deposit deviates from the standard, this may not nec- essarily cause problems. When the inspection systems are networked, such deviations can be forwarded to the upcoming inspection gateways and monitored during the process. “Anomalies from the solder


paste inspection or automatic optical inspection can be taken into account in the analysis of the X-ray inspec- tion. For example, if a tolerance devi- ation is left unchanged and con- firmed, a genuine defect can be excluded,” says Eschenburg. “The advantages for the process: the num- ber of false calls is automatically fur- ther reduced and slippage is avoided. The first-pass yield can thus be noticeably improved without increas- ing the risk of slippage.” This is a crit- ical advantage of networked inspec- tion systems. This enables an overview of all the data — verification is simplified, costs reduced and process stability improved. Viscom intends to further


Fast Count Time


High Count Accuracy


Designed for Automation


Viscom X8060 SL inline X-ray inspection system for power electronics.


advance automation, leveraging deep learning and artificial intelligence (AI). In the company’s first project, AI will be used to support the machine operator in the verification process. To verify inspection results, a large amount of data (e.g. images from the field) is initially required to train classifiers, which are validated with additional images. AI can gradually take over additional tasks.


If the operator is supported in the verification process from the beginning with AI results, AI can automatically complete verification for certain components after they are successfully validated. Contact: Viscom, Inc., 1775 Breckinridge


Parkway, Suite 500, Duluth, GA 30096 % 678-966-9835 fax: 678-966-9828 E-mail: info@viscomusa.com Web: www.viscom.com r


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