Passive sensors for flexible hybrid-printed electronics' systems: An IC designer view

Printed electronics have gained increased interest in recent years, and printed sensors, which promise mechanically flexible multifunctional electronics over large areas, are raising remarkable attention. Numerous low cost printing technologies have been developed on different flexible/stretchable substrates including textiles. This paper presents a brief summary of various passive sensors (humidity, temperature, and pH) printed on diverse flexible substrates from an integrated circuits and systems' design standpoint and for use in flexible hybrid-printed electronics systems. A description of possible application domain for flexible sensors is provided.