Soft Magnetic Thin Film Applications based on Nanotechnology

Dr. Masahiro Yamaguchi
Department of Electrical Engineering, Tohuku University

Ferromagnetic thin film materials having high permeability at radio frequencies and above, are candidate materials for use in inductive passive components that are available in the forms of vacuum-deposited and electro-deposited metallic alloys, chemically synthesized nano-particulate composites, and traditional oxides, among others.

This lecture begins with a review of nano-structure controlled soft magnetic material covering nano particles and sputter-deposited thin films. Then thin film applications at radio frequencies is discussed for future system-in-package (SiP) and system-on-chip (SoC) technologies. Discussions covered in this lecture include:

  1. Small signal high permeable low loss applications to CMOS integrated inductors
  2. Small signal lossy application to CMOS integrated electromagnetic noise suppressor
  3. Multi-ferroic thin films
  4. Bio sensing based on modulation technique

Dr. Masahiro Yamaguchi

Masahiro Yamaguchi received his BSc., MSc. and Ph D. in Electrical Engineering from Tohoku University, Japan in 1979, 1981 and 1984, respectively. In 1984, Dr. Yamaguchi joined the Department of Electrical Engineering, Tohoku University as Assistant Professor. In 1990, Dr. Yamaguchi became Associate Professor at the Research Institute of Electrical Communication, Tohoku University. During October-December 1995, he joined Department of Electrical and Computer Engineering, University of Wisconsin-Madison, USA, as a Visiting Associate Professor. Since 2003, Dr. Yamaguchi works for the Department of Electrical Engineering, Faculty of Engineering, Tohoku University as a full-time Professor. His interest covers high frequency magnetic materials and applications, and EMC. He has been awarded the best symposium paper award at APEMC2015. He was the 2016-2017 Chair of IEEE EMC Society Sendai Chapter, and awarded 2017 Chapter of the Year award. He is 2018-2019 Chair of IEEE Magnetics Society Sendai/Sapporo Joint Sectoin Chapter, a TPC member of 2018 IEEE PELS Power-Supply-on-Chip Workshop, EMCCompo2019, Joint MMM/Intermag 2019, and the Secretary/Treasurer of IEEE Magnetics Society.