Reis Robotics develops fully-automatic laser soldering procedure



Product Briefing Outline: Reis Robotics has now implemented a newly developed laser soldering procedure for practical use with several customers. Photovoltaics manufacturers are increasingly anxious to fully exploit the automation potential of their production capacity in order to deal with the increasing demands for lower prices. Reis Robotics as system supplier with its subsidiary Reis Lasertec as laser welding specialist have combined skill sets to deliver a laser soldering method for higher quality, shortened cycle times and reductions in manual rework.

Problem: Increasing the efficiency of solar cells and solar modules, while increasing production throughput and yield, while reducing costs is requiring greater dependence on fully automated and integrated solar cell soldering techniques. The use of laser-beam soldering and selected solders, the joining temperature can be reduced to a minimum, the solar cells are not subjected to mechanical strain, compared with conventionally used bowtype electrodes.

Solution: A newly developed laser soldering method ensures further increases in quality, shortened cycle times and reductions in manual rework. An integral process controller monitors and documents the production process. In doing this, it is possible to concentrate the heat input such that soldering can be done directly on the EVA foil. With direct soldering on the foil, unnecessary multiple handling of the strings during the pre-process is avoided. The integrated process control offers further advantages – it monitors the soldering of each joint individually and the data from this can be transferred and saved in a database for later documentation and quality control. Furthermore, faulty solder joints are reported directly via a monitor at a subsequent work station so that a worker recognizes these immediately and can manually resolder. With this procedure cycle times of less than 40 seconds per module are obtained for a module with 60 cells and 36 soldering spots. This laser soldering system offers certain advantages compared to other procedures: low mechanical strain of the soldering joint, precise regulation of the soldering temperature, low operating cost, process stability in the position tolerances of the components, simple integration into automated systems and low maintenance costs are claimed.

Applications: Fully automated solar cell soldering.

Platform: In this station, two Reis robots perform the soldering. In a separate station, two further robots automatically lay out the interconnection terminal lugs. The lugs are fed directly from a reel, using a specially developed system and presented in the correct position for the robot to pick up.

Availability: Now currently available

7 December 2022
Intersolar is the world’s leading exhibition & conference series for the solar industry. As part of this event series, Intersolar India in Gujarat is India’s most pioneering exhibition and conference for India’s solar industry. It takes place annually and has a focus on the areas of photovoltaics, PV production and solar thermal technologies. Since 2019, Intersolar India is held under the umbrella of The smarter E India – India’s innovation hub for the new energy world.
24 January 2023
Solar Quality Summit Europe January 24–25, 2023 The Solar Quality Summit Europe in Barcelona will bring together the PV industry to give an overview of market developments and recent technologies, sharing best practices in EPC, O&M, and Asset Management.
1 February 2023
Returning For Its 10th Year | Connecting Project Developers & Capital
Now in it’s 10th year, Solar Finance & Investment Europe is the meeting place for solar developers, asset managers, investors & financiers to learn the latest business models for project finance, re-financing, power purchase agreements as well secondary markets for PV assets. The conference also looks at latest technologies and systems for maximising power output and efficiency, reducing losses and predictive maintenance. The 2023 edition will bring together the largest pool of capital and projects together. Reserve your space now to avoid disappointment.
14 February 2023
Intersolar North America (ISNA) and Energy Storage North America (ESNA) is the premier US-based conference and trade show focused on solar, energy storage, and EV charging infrastructure. Dedicated to accelerating the energy transition, the combined event delivers actionable education, invaluable networking, and an immersive expo hall experience.
22 February 2023
After a record breaking year at the Energy Storage Summit, join us next year at the 8th edition in 2023 where we are expanding in line with the increased opportunity across the renewable sector. As we see this continued growth of the industry through change in government policy, increased capital and a need for grid resilience in geographies with high renewable penetration, can the necessary scale be met across the value chain in order to meet net-zero goals in Europe? We will gather industry leaders across the sector to discuss a range of vital topics including the most lucrative markets for storage and what the best route to market strategy is for your storage asset, changes needed in policy and infrastructure, as well as the effects of the supply crisis, disruptive technologies and much more.
14 March 2023
PV CellTech will be return to Berlin on 14-15 March 2023 and looking at the competing technologies and roadmaps for PV cell mass production during 2024-2026.

Read Next

Subscribe to Newsletter

Most Read

Upcoming Events