Solderable and electroplatable flexible electroniccircuit on a porous stretchable elastomer

摘要

A variety of flexible and stretchable electronics have been reported for use in flexible electronicdevices or biomedical applications. The practical and wider application of such flexibleelectronics has been limited because commercial electronic components are difficult to bedirectly integrated into flexible stretchable electronics and electroplating is still challenging.Here, we propose a novel method for fabricating flexible and stretchable electronic devicesusing a porous elastomeric substrate. Pressurized steam was applied to an uncuredpolydimethylsiloxane layer for the simple and cost-effective production of porous structure.An electroplated nickel anchor had a key role in bonding commercial electronic components onelastomers by soldering techniques, and metals could be stably patterned and electroplated forpractical uses. The proposed technology was applied to develop a plaster electrocardiogramdry electrode and multi-channel microelectrodes that could be used as a long-term wearablebiosignal monitor and for brain signal monitoring, respectively.