Surface-mounted technology
Surface-mounted technology (SMT) is a technical term from electronics. In contrast to Through Hole Technology (THT), the “wired components”, the connections of the components are not inserted through a hole in the circuit board but fitted and soldered directly on the surface of the circuit board using connection surfaces. A higher packing density and lower production costs per component are possible with this highly automated technology.
# SE-TEC SMT 01 // HIGH TEC PRINT
The trend towards ever smaller components and finer structures requires the highest precision and repeatability in the screen-printing process. For these reasons, we rely on the fully automated JUKI GKG stencil printer in this important process step, which is the basis for all subsequent processes. To ensure that we achieve consistently high quality from the first to the last circuit board in the series, all relevant parameters are matched to your product and saved in the stencil printer. The alignment of the circuit boards and the cleaning of the stencils are carried out fully automatically to achieve perfect results.
SMT machine assembly is no secret and we know that a high assembly speed alone is no longer enough to impress you today. That is why we offer you an unprecedented level of flexibility through the use of the latest assembly technology.
Special feeders enable us to load and unload the components within a few seconds. In addition, to avoid setup errors and to achieve even shorter machine setup times, all components are verified by means of barcodes. A wide range of components that can be assembled from 01005 to BGA with 56mm x 56mm gives us the certainty that we are ready today for tomorrow’s tasks.
# SE-TEC SMT 02 // Juki linie
In the area of reflow soldering, we rely on convection soldering systems. Through constant control of the process parameters by means of internal monitoring and through a soldering profile adapted to your product, we achieve an optimal soldering result with minimal thermal stress on the sensitive components.
# SE-TEC SMT 03 // REFLOW SOLDERING
In electronics, the assembly and connection technology of wired electronic and electromechanical components is referred to as through-hole assembly (THT). This technology offers a high electrical and mechanical resilience of the components and soldered connections.
Our conventional production is equipped with trained specialists and modern equipment. In this way, we guarantee a high level of process reliability when processing wired components in wave, selective and hand soldering.
# SE-TEC THT 01 // ASSEMBLY
With selective soldering, we close the gap between hand soldering in the sample and small series sector and masked wave soldering in the larger series. The advantages compared to hand soldering are more efficient production, a reproducible process and an increase in the quality of the soldering joint.
# SE-TEC THT 02 // SELECTIV SOLDERING
For RoHS-compliant wave soldering, we use SEHO double wave soldering systems with integrated spray fluxer. With these microprocessor-controlled systems, we can solder the entire range of assemblies from SMT and THT to mixed assemblies. In the series area, we offer you reproducible quality at attractive conditions with masked wave soldering.
# SE-TEC THT 03 // WAVE SOLDERING
We use various axial and radial devices to prepare your conventional components.
The combination of single boards into multiple boards is an essential step towards reducing the handling effort per board and is therefore indispensable for almost every product.
When it comes to the necessary depanelling, we have deliberately decided against conventional, dividing separation processes, as these can harbour potential risks for sensitive components, such as ceramic capacitors. Micro-cracks in components and solder joints can jeopardise the reliability of the entire assembly. For this reason, we rely on cutting or laser-assisted separation processes from prototype production to series production of sensitive assemblies.
# SE-TEC THT 04// SEPARATE
AOI / MOI SYSTEM
The automatic optical inspection is the basis for a minimal error rate in series production. The programming effort pays for itself through the shorter inspection time – even with smaller quantities.
By using the 3D inspection system VT-S730 from Omron, we inspect with regard to the following quality features:
The VT-S730 inspection system is characterized by the following features:
We use stereomicroscopes with LED lighting for manual optical inspection. So that we don’t miss the smallest detail, we use interchangeable lenses with four, ten and twenty times magnification.
# SE-TEC INSPECTION 01 // MOI
# SE-TEC ISPEKTION 03 // 3D AOI
With the acquisition of 2-component mixing and dispensing systems, which are specially adapted to the requirements of our standard potting compounds Henkel FERMADUR A-690-UL1 / FDUR B-N and Peters VU 444431 SB-WB or VU 449431 SB-WB, we can offer you the potting of your assemblies in excellent quality.
# SE-TEC POTTING 01
In order to optimally prepare your assemblies for an upcoming coating, we use an automatic cleaning machine for industrial fine cleaning from the manufacturer Riebesam.
The machine of the 23 series is equipped with two cleaning levels and PLC control for the highest demands on cleaning results, reproducibility and performance.
# SE-TEC CLEAN 01
# SE-TEC Conformal Coating // 02
With the acquisition of a new lacquering system, a MYC50 from Mycronic, we can offer you a valuable addition to our range of services. Numerous features such as laser height measurement, heating modules and closed loop enable precise dosing and even distribution of the coating material to achieve an optimal protective layer on the PCBs.
Equipped with three different valves, a wide range of requirements can be covered. With a spray valve, large areas can be coated. With the needle valve, even hard-to-reach places can be reached. The dispenser is used to apply dam material so that sensitive components such as connectors remain free of paint.
With the proven protective coating SL 1307 FLZ/2 from Lackwerke Peters, you can increase or extend the reliability and service life of your assemblies. You get excellent corrosion protection over a wide temperature application range from -65 to min. +125°C.
# SE-TEC Conformal Coating // 02
