Design, mechanics, and operation of spiral-interconnect based networked sensor for stretchable electronics
Type
ArticleKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionIntegrated Nanotechnology Lab and Integrated Disruptive Electronic Applications (IDEA) Lab, Electrical Engineering, Computer Electrical and Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
Electrical Engineering Program
Date
2019-10-28Embargo End Date
2020-10-28Permanent link to this record
http://hdl.handle.net/10754/660350
Metadata
Show full item recordAbstract
Currently, stretchable electronics has gained intensive attention due to its numerous applications, especially for implantable medical diagnostics and soft actuator based surgeries. A practical stretchable system requires the use of a feedback-assisted structure, i.e., that can detect the movement of the device, analyze the data, and manage the motion, referred to as digitally controlled actuation. An island-interconnect configuration is used to attain the stretchable electronics such as a spiral interconnect is commonly used architecture due to its high stretchability and ability to accommodate large deformations. Here, we fabricate the microscale stretchable series networks and experimentally demonstrate their stretching profiles. A systematic comparison using experiments and finite element method modeling illustrates the mechanical response of the series network up to their fracture limit and shows the stretchability of 160% before the fracture. Cyclic testing shows that the spiral-interconnect experiences no fracture up to 412 cycles. We then devise a sensing mechanism, which detects the actual movement of the island during stretching. The sensitivity and resolution of the sensing mechanism are 1.4 fF/μm and 0.7 μm, respectively. Our proposed sensing mechanism might digitally control the soft robotic-arms and actuators for next-generation drug delivery and targeted application of artificial entities.Citation
Qaiser, N., Damdam, A. N., Khan, S. M., Shaikh, S. F., & Hussain, M. M. (2019). Design, mechanics, and operation of spiral-interconnect based networked sensor for stretchable electronics. Applied Physics Letters, 115(18), 181904. doi:10.1063/1.5123680Publisher
AIP PublishingJournal
Applied Physics LettersAdditional Links
http://aip.scitation.org/doi/10.1063/1.5123680ae974a485f413a2113503eed53cd6c53
10.1063/1.5123680