Automated reel-to-reel fluidic self-assembly enabling the production of solid state lighting panels

Conference: Mikro-Nano-Integration - Beiträge des 5. GMM-Workshops
10/08/2014 - 10/09/2014 at Ilmenau, Deutschland

Proceedings: Mikro-Nano-Integration

Pages: 3Language: englishTyp: PDF

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Park, Se-Chul; Fang, Jun; Jacobs, Heiko O. (University of Minnesota, Electrical and Computer Engineering, Minneapolis, MN 55455, USA)
Biswas, Shantonu; Mozafari, Mahsa; Stauden, Thomas; Jacobs, Heiko O. (Technische Universität Ilmenau, Fachgebiet Nanotechnologie, Ilmenau, 98693, Germany)

We report the implementation of an automated reel-to-reel fluidic self-assembly system based on surface tension driven self-assembly for macroelectronics application. The reported system incorporates precisely controlled and automated agitation, web moving and component recycling and dispensing system and enables continuous parallel assembly of semiconductor chips at a high rate (15k chips per hour using 2.5 cm wide web) and assembly yield (>99%) under optimal condition. In principle, scaling to any throughput should be possible considering the parallel nature of selfassembly. The process overcomes the limitations on area and throughput of prior methods. It provides a new platform for macroelectronics to enable the integration of microscopic high performance inorganic semiconductors on flexible or stretchable substrates with any desired location, pitch, and integration density. As an example we demonstrate the fabrication of a solid state area lighting panel.