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Olum Developing Gen 8.5 OLED FMM
 
After APS announced that it is developing a 3000 ppi FMM using laser technology, Olum reported that it will produce FMM ‘used in Samsung’s new Gen 8.5 Fab that deposits the organic material onto a substrate that will be held vertically for OLED panels 10-inches or larger tablets and notebooks. Olum is developing unit cell FMM, which is different from the stick FMMs currently in use. Olum’s makes FMM by putting in individual cells like tiles onto the open mask grid. The company calls its technology uc-FMM, which they claim is a simpler process They call the approach a template process. On the transparent template, it seals and processes individual cell-sized invars. These cells are in front of every display, allowing the material to be deposited individually. This differs from the stick method of FMM that is in front of the entire substrate, which makes them prone to sagging in the center. Stick FMM can deposits materials five to six panels at a time. Olum says its unit cell method can increase yield and the FMMs can be made thinner to produce higher resolution panels. They are working on increasing pixel position accuracy and developing repair equipment to reach commercialization. Olum’s method currently has a pixel position accuracy of 5um, and they are targeting 3um within the year.
Olum’s is also developing the alignment equipment needed to position the FMM cells and molding equipment place or remove the cells with Top Engineering. Olum has already developed its own uc-FMM technology for Gen 6 OLED. The company has filed around 150 patents related to its uc-FMM technology.

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