Printing OLED is very attractive way for producing organic layer containing devices due to its low price and relatively easy technique. However, in many cases the uniformity of printed layers is much worse than the conventionally manufactured layers.

Semilab has developed a metrology which can determine the full thickness of OLED structure in one sub-pixel using a single measurement in a few seconds. The lateral resolution can be as high as 5 µm which allow to our customer to fine tune precisely the printing process.