Welcome to Design of Modern Power Semiconductor Components


The main component of modern Power Electronics circuits is the semiconductor power switch. This course presents the fundamentals of Power Switches operations from a physical point of view, together with the specific peculiarities and the reason to use them in a special application.
An overview on different packaging technologies and their properties, advantages and disadvantages, is also given. Requirements from the applications and possibilities to tackle them with a semiconductor package solution will be proposed.

Day 1
Lecture 1: 08.30-12.00 (V. Popok, K. Pedersen)
 Junction theory, PN- and PIN-diodes.
 Fundamentals of bipolar junction and field-effect transistors.
 MOSFET and IGBT in power electronics.
 Emerging (wide band-gap) technologies.
Lecture 2: 13.00-16.30 (F. Iannuzzo)
 Operation of MOSFETs and IGBTs. On state, off state, switching theory. Miller plateau, voltage/current overshoots and voltage/current tails. Power loss calculation.
 Overview of abnormal operations: Safe Operating Area (SOA), unclamped inductive switching (UIS) and short circuit.
 Principle of instability theory: current crowding and thermal runaway. Negative capacitance.
 Modern driving strategies: including two-level turn off and desaturation protection

Day 2
Lecture 3: 08.30-12.00 (E. Hoene)
 Introduction on packaging techniques for modern semiconductor power switches.
 Challenges in terms of power density, stray inductance/resistance and reliability.
 Modern interconnection solutions: copper bond wires, low-profile packaging, bondless packaging, etc.
Group work, part 1: 13.00-16.30

Day 3
Group work, part 2: 08.30-12.00
Final lecture: 13.00-16.30 (F. Iannuzzo, E. Hoene)
 Project presentations by groups, Collective project verification and discussion

Prerequisites: basic knowledge of circuit theory

Form of evaluation: the participants will be grouped and asked to work in team on a real design. Groups will compare and deeply discuss the achievements and the design choices in the final 1-day lecture. Attendees are asked specific questions about the developed design to be answered individually.

Organizer: Prof. Francesco Iannuzzo, fia@et.aau.dk, Aalborg University

Lecturers: Prof. Eckart Hoene, AAU and Fraunhofer IZM; Prof. Francesco Iannuzzo, AAU; Prof. Kjeld Pedersen, AAU, Prof. Vladimir Popok, AAU


Time: 9 - 11 November, all days 8:30 – 16:30


Number of seats: 30

Deadline: 19 October 2020

Important information concerning PhD courses: We have over some time experienced problems with no-show for both project and general courses. It has now reached a point where we are forced to take action. Therefore, the Doctoral School has decided to introduce a no-show fee of DKK 5,000 for each course where the student does not show up. Cancellations are accepted no later than 2 weeks before start of the course. Registered illness is of course an acceptable reason for not showing up on those days. Furthermore, all courses open for registration approximately four months before start. This can hopefully also provide new students a chance to register for courses during the year. We look forward to your registrations.