Aledia

Aledia, a French microLED developer, specializes in 3D nanowire LED technology. The company's core offering is based on GaN nanowires fabricated on large-area silicon wafers, initially implemented on 200mm wafers with plans to evolve toward 300mm wafers for high-volume production. Aledia's technology aims to shrink the cost per chip compared to conventional 2D LED technology. The company has developed two nanowire LED platforms. The first, which is being optimized for volume manufacturing, uses blue-emitting GaN nanowires on 8" silicon wafers with color conversion for green and red colors. This platform has demonstrated one of the smallest microLEDs (1.2µm in diameter) with up to 30% Wall Plug Efficiency (WPE). Aledia's second platform, still in R&D, allows direct emission in RGB with a controlled emission angle, targeting 6500ppi single-chip RGB arrays for AR applications. In December 2020, Aledia announced the production of its first nanowire microLED chips on 300mm silicon wafers at the CEA-Leti pilot line. The company's first product is a 160µm RGB single-chip LED for fine pitch videowalls and luxury TVs. Aledia plans to start LED production in its new facility by 2022, where it will also finalize its microdisplay production process. The company holds over 250 patent families related to its technology.