Keywords: flexible electronics, glass
Summary:Substrate choice is critical for overall flexible electronic device and process optimization. Compared to alternatives, glass substrates offer advantages of dimensional and thermal stability, hermeticity, transparency, and surface quality. This paper discusses flexible glass properties that enable high-performance devices using roll-to-roll (R2R) processes. With a specific focus on mechanical reliability, use of glass web has been demonstrated in key R2R building block processes such as: vacuum deposition, lamination, laser patterning, printing, photolithography, and solution coating. Examples of scaled-up glass web processing are described that demonstrate capability for manufacturing widths, lengths, and conveyance speeds.