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Planar‐Type Printed Flexible Mechanical Switch

Future flexible electronics must exhibit complete mechanically flexibility for a conformal covering without stress or discomfort as human‐interactive electronics. Consequently, each component should be mechanically flexible. As a step toward this end, this study fabricates a planar‐type mechanical flexible switch via a printing method and laser cutting. The device structure to realize a planar‐type device is designed by inspiration from a hair clip. Its fundamental characteristics are characterized, suggesting that this concept works for the mechanical switch with long stability and flexibility. Furthermore, a real‐time medication monitoring sensor using the switches is demonstrated as a proof‐of‐concept for a potential practical application.