Success Story – OLED Forschungsanlage

Success Story

OLED research facility

Controlling software and traceability for industrial fabrication of organic LEDs.


The organ­ic LED is more and more found in prod­ucts of dai­ly life. How­ev­er the indus­tri­al mass pro­duc­tion is still a chal­lenge with great poten­tial für opti­miza­tion. In order to tap the full poten­tial a research facil­i­ty was designed and real­ized with the con­trol know how of Qual­i­ty Automa­tion. Here the data base sup­port­ed flex­i­bil­i­ty and repeata­bil­i­ty of process­es play an impor­tant role for our customer.

Sys­tem concept

The plant designed das clus­ter-tool con­sists of an inert gas glove-box with a cen­tral han­dling robot for glass sub­strates as well as dif­fer­ent coat­ing tools that add the glass sub­strates to organ­ic and met­al lay­ers. With­in the glove-box an oxy­gen poor atmos­phere with a resid­ual oxy­gen con­tent in ppm range is cre­at­ed by automa­tion. Glass sub­strates serv­ing as medi­um for the lay­ers of the organ­ic LED are infil­trat­ed in this oxy­gen poor atmos­phere. With­in the box the sub­strates are trans­port­ed from process sta­tion to process sta­tion by a cen­tral han­dling robot. Here the glass sub­strates fol­low a pro­duc­tion flow spec­i­fied by the recipe man­age­ment. With­in the process sta­tion the sub­strates are coat­ed with dif­fer­ent coat­ing pro­ce­dures like spin-coat­ing or vac­u­um depo­si­tion and dried in hot­plates. The sin­gle coat­ing and dry­ing process­es are sup­plied with para­me­ters con­trolled by the recipe.

Trace­abil­i­ty in detail

For repeata­bil­i­ty of all process para­me­ter regard­ing achieved prod­uct qual­i­ty a 100 % trace­abil­i­ty on prod­uct lev­el was real­ized on the plant. Every sin­gle end-prod­uct is equipped with a Dot-Matrix-Code. By this code all pro­duc­tion process­es with time stamps as well as para­me­ter and mea­sur­ing val­ues can be tracked for the sin­gle prod­uct. Data analy­sis and report­ing at the plant are imple­ment­ed as well as export pos­si­bil­i­ties at high­er-rank­ing analy­sis tools.

Contact Person
QA Geschäftsführer Friedhelm Steffens
Dipl.-Ing. Friedhelm Steffens, MBA, ppa.
Software Development
Specializations: Software development, databases, project management
Our philosophy

Only if our systems are integrated at the customer completely they develop their entire performance potential. Therefore it is important for us that our customers are integrated in the process from the very first day of the project carry out. Communication is about it the most important connecting part between us and our customers.

Customer targets
  • Maximum production efficiency and quality
  • Stable industrial processes
  • Well trained personal
  • Low service costs
  • Most favorable conditions