The motto of this year´s conference is "Bridging Technology Innovations to Foundations". Understanding the foundations of circuit theory has been from the very beginning on the focus of the ECCTD series of conferences. Such fundamental understanding is crucial to design the innovative micro-and nano-electronic circuit and systems that are ubiquitous in the modern world. Besides, the ever increasing, astonishing potentials of the technologies which are currently available to build these systems define new challenges for further foundational works. This year we have received 352 submissions form 33 countries. The Technical Program Chairs, with the inestimable assistance of 27 Track Chairs and some 407 reviewers, have completed a rigorous selection process leading to the selection of 258 papers for oral presentation at the Conference Program. This program is complemented with the contribution of four distinguished experts who will speak about both foundations and emerging applications of circuits: Prof. Chua (Leon O.), Prof. Enz (Christian), Prof. Ogorzalek (Maciej) and Prof. Van Roermund (Arthur H. M.). Besides, tutorials will be presented by worldwide experts after the conference. I want to thank all of them for their contributions.I would like to finish this welcome by expressing my highest appreciation to all the authors who submitted papers to the conference and to all delegates, tutorial lecturers and plenary speakers who will travel to Seville to interact and share their thoughts during the Conference days. They are the main characters of the event.Enjoy ECCTD 2007 and your visit to Seville. We hope to see you all back here more often!
Ángel Rodríguez-Vázquez
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