Congratulations to Dr. Xiaotian Li

On May 28, PhD student Xiaotian Li, successfully defended his Doctoral thesis. Congratulations from all of us at STC!

Xiaotian Li

Xiaotian "Tian" Li held his presentation "Towards Large-Area Electronic Systems Using Non-Conventional Substrate and Conductor Materials" online in Zoom and YouTube.

Nearly 40 people attended the seminar in Zoom and approxemately 20 people on YouTube.
The opponent and the grading committee particpiated in Zoom. 
After the chair of the Grading committee had appointd the new doctor, we alla made a digital toast! 
Congrats Tian!

Main supervisor: Associate Professor Johan Sidén
Co-supervisor: Associate Professor Henrik Andersson

Opponent: Professor Leena Ukkonen, Tampere University, Finland

Examination committee:
Professor Daniel Rönnow, University of Gävle, Sweden
Associate Professor Jonny Johansson, Luleå University of Technology, Sweden
Dr. Sari Merilampi, Satakunta University of Applied Science, Finland


Defence of Doctoral Thesis in electronics with Xiaotian Li

Short description of the thesis

Flexible circuits were originally developed in the 1950s for interconnection between multiple electronic devices when flexibility and movement were required. Nowadays, flexible circuits can be used for implementing electronic systems much more complicated than just interconnections. With developments in printed electronics, many non-conventional materials can be used in fabricating flexible circuits that have advantages such as increased flexibility, low cost, a small environmental impact, etc. In addition, fast and efficient manufacturing methods can produce flexible electronics in large volumes. This opens a window of opportunity to create electronic systems over geometrically large areas.

This thesis provides general methods and design guidelines on how to implement large-area electronic devices using non-conventional flexible materials and technologies. The thesis specifically focuses on for electronic systems that integrate both digital and analogue signals. Further, it demonstrates and provides examples of how signals in the microwave frequencies, commonly requiring expensive materials, can be handled with non-conventional materials and technologies.