High-rate roll-to-roll (R2R) tracker systems are utilized for large volume flexible electronic device manufacturing, and the current alignment mechanism between layers is mainly achieved by relying on passive techniques. In this paper, we present a machine vision based alignment strategy that is used to achieve precise registration for stacking multilayers. Based on this strategy, we demonstrat...

This paper concerns the tension control of roll-to-roll systems. In such systems, each driven roller speed is controlled separatly. The impact of the master roller position on tension control performances is studied using optimized web tension control synthesis. The tension disturbance rejection property and the system robustness regarding web elasticity variations are analysed for each configu...

We propose a new type of re-writable bitmap image display component using the MEMS (Micro Electro Mechanical Systems) -controlled light scattering. The device is made of a light-guided transparent substrate (glass) and a thin sheet of semi-transparent plastic film (PDMS; Poly Di Methyl Siloxane) with magnetic nickel and light– diffusing glass powders formed in an electrostatic parallel-plate ac...

In an effort to translate PRINT nanoparticle fabrication from batch processes to continuous manufacturing, Liquidia Technologies has harnessed the scale of roll-to-roll processing with the precision of microlithography to enable GMP production of gram to kilogram quantities of nanoparticle based therapeutic formulations. The in-house capabilities now enable fast turnover from single wafer maste...

Recently, wear resistant properties of metallic glasses has attracted a lot of interest. Because the surface of metallic glasses are prone to phase transformation, finding the effects of test condition on structure and wear behavior of metallic glasses is important. In this research, by using an automated electrospark deposition (ESD), a layer of Fe51Cr18Mo7B16C4Nb4 was deposited on AISI 316l s...

The effects of applied load, sliding speed and sliding distance on the dry sliding wear behavior of aged Al-SiCp-Gr composites were investigated. The specimen were fabricated by stir-casting technique. The pin-on-disc wear testing machine was used to investigate the wear rate by design of experiments based on L27 using Taguchi technique. Sliding distance was the most important variable that inf...

Hard metals are an important material due to their specific properties, such as high degree of hardness and resistance to abrasive wear, and they are in wide use today. There are indications that hard metal aerosols can endanger human health. Discussions are ongoing as to how to categorize hard metals as hazardous as a result. This categorization will require deciding in particular how to deter...