MicroLEDs have a tremendous potential for future displays. However, there are several technical challenges to overcome prior to widespread deployment of MicroLEDs. One key hurdle is developing a process to release the dies from the sapphire growth wafer. Another is a process to transfer these to the display substrate with micron level precision and reliability. Laser processing offers several opportunities for MicroLED display production, such as Laser Lift-Off (LLO) to separate the finished MicroLEDs from the sapphire growth wafer and Laser Induced Forward Transfer (LIFT) to move the devices from a donor to the substrate. In this presentation, laser-based system solutions for the different manufacturing steps for MicroLEDs, will be presented. Integrated process control and monitoring is used to assure stable and reliable operation to ensure high throughput and low yield losses.
As advancements thin-film and flexible electronics like printed organic solar cells and organic LEDs bring these devices
close to market entry new processing technologies for cost-effective, high quality production have to be developed. Laser
technology provides a huge potential to fulfill the demanding tasks that come with the transition from lab to factory.
3D-Micromac looked into the possibilities of ultra-short pulsed lasers for scribing of transparent conductive layers as
well as active layers of organic solar cells. This paper presents the results of this research.
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