EUTECT's soldering processes can be flexibly adapted to the respective application thanks to their modular design and enable fully documented, automated production using EUTECT control technology. This is a decisive advantage for the strict regulatory requirements in medical technology, where reproducible and traceable processes are a crucial factor for quality assurance. Thanks to state-of-the-art process monitoring, low thermal stress and high reproducibility, our soldering processes are an optimal choice for manufacturers who rely on quality, durability and reliability.
Our selective soldering processes are ideally suited to produce high-precision and reliable electronic assemblies, such as those used in implantable devices like pacemakers, neurostimulators or cochlear implants. Flawless, long-lasting solder joints are essential here. EUTECT's soldering processes, such as mini-wave or laser soldering, enable sensitive microelectronics to be processed gently. The solder joint is characterized by the capillary degree of saturation, which is physically self-adjusting. The optimal solder geometry is reliably mapped to the pad pin shape, pin hole position and thermal mass distributions in the PCB structure. Excellent solder penetration during wave soldering, menisci and intermetallic phase characteristics reproducibly round off the overall performance.
In addition, neighboring components and the substrate are protected from unnecessary material stress caused by heat input by the use of workpiece carriers or masks.
In combination with laser soldering, the Sensitive Wire Feeder (SWF) plays a decisive role. The controlled wire feed SWF is an important key technological requirement for laser, induction and piston soldering in order to make the entire soldering process extremely safe and reproducible. The SWF's electromechanical sensors enable optimal, reproducible, and kink-free wire feeding, setting new standards in process reliability. Based on the change in wire contact force, the system recognizes the moment when the solder wire arrives at the process surface and begins to melt. It reacts to errors, such as an incorrectly positioned or dodged wire, and bridges tolerances in the working height. This allows for complete process data acquisition for safety-relevant assemblies for each selective soldering point. Wire diameters from 0.1 mm can be fed with the SWF, enabling the finest soldering joints to be precisely designed.
Precise soldering joints also play a significant role in diagnostic and monitoring devices, such as ECG sensors, blood pressure monitors or optical analysis instruments, as well as in surgical monitoring. EUTECT's selective high-quality soldering processes ensure a reliable connection between the substrate and the component for consistent signal quality, low resistance and high reliability over long periods of use. Automated quality assurance systems, such as camera-based inspections, also ensure that each connection precisely meets the high requirements of medical technology.
In the area of the Laser soldering EUTECT has established itself as a leading supplier through continuous innovation and technological advances. Laser soldering is used specifically for the manufacture of electronic instruments. These methods enable temperature-controlled, selective soldering that can be applied to even the smallest components. In addition, laser soldering offers several significant advantages over conventional soldering methods. Firstly, this technology is extremely energy-efficient, as the laser beam is focussed exclusively on the area to be soldered. This reduces the amount of energy required. At the same time, the thermal load on the surrounding material is minimised. The structure of the component thus remains unchanged. These are particularly important advantages in the electronics industry, where sensitive components are often located very close together.
EUTECT also offers reliable processes for surgical instruments, such as scissors, forceps and tweezers. Induction soldering is a precise, clean and reliable joining technology that is ideal for the production of surgical instruments. Thanks to precise temperature control, the process enables reproducible results and minimizes structural changes or material distortion, which is particularly important for delicate instruments. Since biocompatible materials such as stainless steel, titanium or cobalt-chromium alloys are often used in medical technology, induction soldering offers a gentle joining technique that does not impair the mechanical properties of these materials. Another advantage of induction soldering is the minimal heat-affected zone (HAZ), which helps to prevent corrosion, oxidation or stresses in the material.
Therefore, induction soldering is used to produce instruments but also to connect tubes and sensors in endoscopes, to precisely join orthopedic tools and to manufacture dental instruments. Since the process does not involve an open flame and is contactless, the risk of contamination is minimized. The technology can also be easily integrated into automated production lines, ensuring a high level of process reliability and optimizing the industrial production of surgical instruments. Due to these advantages, induction soldering has established itself as an efficient, safe and biocompatible joining technology that ensures consistently high quality and durability of surgical instruments.
A key reason for the high reproducibility of EUTECT's soldering processes is the use of intelligent kinematics, such as robots. The integration of a robot enables the reliable application of a wide range of processes in a single production cell. Each process step is carried out repeatedly with absolute precision. Depending on the size of the cell, up to five processes can be controlled by a robot positioned overhead. By integrating solder pallets into the robot gripper, assemblies can be fixed during gripping and soldered overhead, e.g. by mini wave. We develop grippers that are specially tailored to customer and product requirements. The gripping systems not only transport an assembly but are also partly equipped with specific functionalities that allow a reproducible soldering process.
EUTECTs also uses state-of-the-art kinematics solutions such as the XPlanar system from Beckhoff to produce medical goods. The XPlanar system is an ideal solution to produce medical products since it offers highly flexible, contactless and hygienic transport technology. The floating movers, which move magnetically over a smooth surface, do not create mechanical friction or abrasion, thus avoiding particle formation, a crucial advantage for sterile production environments. In addition, the smooth surface is easy to clean. Thanks to its precise positioning in the micrometer range, XPlanar is particularly suitable for the assembly of sensitive components such as implants or microchips for diagnostic systems. The gentle and smooth movement also enables the safe handling of sensitive products. The XPlanar planar motor system was used by EUTECT for selective laser soldering. The soldering system consists of two loading systems including a palletizing unit, an optical position correction system, a laser cell with three laser soldering heads and an unloading system with palletizer. The entire assembly transport is carried out via the integrated XPlanar. Other soldering processes can also be implemented with the XPlanar.
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