Developing at the highest level

Developing the resist is crucial in the production of printed circuit boards. Developer systems from TSK meet the highest requirements for precision, efficiency and process stability. The previously applied film resist, which is exposed in the negative, is reliably removed in order to expose the underlying copper. This is the prerequisite for being able to keep the production process at the highest level. Developer systems from TSK set standards in terms of the quality required here. 

• Precise removal of resist at defined locations 
• Optimal exposure of the copper layer for etching processes  
• Uniform development for clean contours  
• Safe protection of illuminated areas  
• Reliable control of the entire development process 

All-round carefree service

To ensure that our machines continue to work perfectly even after many years, we offer our customers a high-performance and experienced service. Whether maintenance, wear, repair or modernization, the TSK service ensures reliable production at all times. 
In addition, we also take care of machines for horizontal wet chemical processes that do not come from our company. Feel free to ask us!  

Precise results 

The development of the printed circuit boards works with a slightly alkaline solution. It dissolves the resist film at the points that have not been exposed and exposes the copper surfaces for later etching. The chemical composition and precise dosing of the solution are central to excellent development. Here, the developer modules set standards with their sophisticated nozzle system from TSK. In addition to standard developers, our modern machines use a post-developer stage. She rinses the plates thoroughly again with fresh chemicals. This means that even the smallest residues disappear reliably so that no residues affect the quality of the printed circuit boards. 

Controlled cleaning

Developing is followed by a cascaded water rinse, in which the panels go through several cleaning stages with different rinsing solutions. A magnesium sulphate solution prevents unintentional infiltration of the resist layer and stabilizes the edges of the developed resist layers. For external layers developers, razor-sharp edges are essential for the later applied copper layers in a possible pattern plating process. This keeps the contours clear and sharp. Because even the smallest inaccuracies during cleaning can impair the etching result or the subsequent adhesion of the metal layer, it is extremely important to precisely control and monitor the rinsing stages. 

Reliable monitoring of chemistry and measurement methods 

In order to ensure consistent quality, we offer various measuring methods for the development machines: conductance measurements determine the concentration of the alkaline solution, pH measurements monitor the exact acidity and alkali content. Area and piece counters record the processed panels. These processes ensure optimal chemistry and ensure stable and reliable production. Through continuous analysis, control and control, process parameters can be adjusted in a targeted manner and the quality of the printed circuit boards remains constantly at the highest level. 

Continuously refining technologies

For TSK, the state of the art is always only the basis and starting point for making further technological advances and refining technologies. In doing so, we always keep in mind that our systems are easy to maintain and robust in order to reliably maintain production. Resource conservation and environmental friendliness, wastewater-saving circuits, emissions into the air and noise emissions are just as important to us as the production quality for which the machines were designed. We support our customers in obtaining operator approvals for the processes on site.