Manufacturers of electronic assemblies are currently facing numerous challenges – including the advancing miniaturisation of the components to be processed, an ever increasing component density on the PCBs to be processed and the growing variance of different assemblies. In order to keep the overview here and to be able to continuously improve processes, traceability and precise process data documentation in assembly production are becoming more and more important

Published in: EPP 11/2021
Author: Julian Gress
Manufacturers of electronic assemblies are currently facing numerous challenges – including the advancing miniaturisation of the components to be processed, an ever increasing component density on the PCBs to be processed and the growing variance of different assemblies. In order to keep the overview here and to be able to continuously improve processes, traceability and precise process data documentation in assembly production are becoming more and more important. Traceability has long been an integral and indispensable part of the machine soldering process, for example in reflow, wave or selective soldering. More than half of all newly delivered systems are equipped with a network connection and the software necessary to enable traceability in real time.
The situation is different with traceability in the reworking of assemblies, e.g. after the automated soldering process. To correct machine soldered joints, depending on the type of component, either manual soldering or a rework system is used. However, as soon as rework is carried out with a soldering iron, complete documentation of the entire soldering process was previously no longer possible. For this reason, many electronics manufacturers have completely dispensed with a manual soldering process or only permitted this following elaborate special approval. In many cases, this has resulted in complete assemblies being scrapped as soon as one faulty solder joint is discovered, which should be avoided at all costs, not only for economic but also for ecological reasons.
Precise documentation of the individual soldering process
To guarantee traceability even of manual soldering, each individual soldering process must be documented precisely. Among other things, the assembly to be processed, the materials used (such as soldering tip, solder wire and flux) as well as process temperature and soldering time must be recorded electronically and made available for tracing.
With the i-CON TRACE, Ersa is offering the first soldering station specifically designed for use in a digitally networked environment and for complete traceability in manual soldering. It already comes with connectivity features such as WLAN and Bluetooth. If there are restrictions regarding wireless transmission methods at a production site, wired communication is available as an option. For this purpose, a network card is used to connect the soldering station to a server via a network cable. The software for operating the soldering station is available free of charge as a download and does not have to be installed on each individual PC or mobile end device as this was previously the case – the i-CON TRACE software “Ersa TRACE Cockpit” is installed once on the customer’s server. As soon as a soldering station is integrated into the company network, all mobile end devices (PC, tablet, smartphone) that are in the company network and have the appropriate authorisation can access the soldering stations. Access is easy via a common web browser (Google Chrome, Firefox, Microsoft Edge).
New level thanks to connectivity
Operation: smart & demand-oriented
Economic-ecological benefit for all electronics manufacturing
Complete traceability for manual soldering
Advantages of traceability
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