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A specific, unique MEMS device was designed for wide-format printing applications. With ink-jet head, package and system integration developed, the design platform is ready for mass production. The technology is established as basis for LED phosphor printing, printed electronics and flexible electronics applications.

Technologies for Transfer

• Complete prototype of ink-jet head with 424 DPI, 600 DPI or customized resolution for wide-format printing
• Solution of compatible printing system sourcing
• Two US patents filed by 2010

The phosphor jet-printing process is being developed for LED phosphor layer formation in place of the conventional phosphordispensing process. With the jet-printing technology, thickness variation of the phosphor layer will be lowered for better colour control and less binning, thus achieving better quality LED products and higher production throughput. In addition, packaging cost will be reduced owing to improved yield rate. The technology will be applied to develop superior LED package for indoor warm white illumination applications. This will result in shaped phosphor layer on diode for improved angular colour uniformity and CCT control down to the level of human

imperceptibility.

• Patented phosphor ink formulations
• Printing solution for dispensing phosphor layers
• Solution for fabricating optimized shaped phosphor layers