course: Electronic Materials

number:
141381
teaching methods:
lecture with tutorials
media:
computer based presentation, black board and chalk
responsible person:
Prof. Dr.-Ing. Martin Hoffmann
lecturer:
Dr.-Ing. Claudia Bock (ETIT)
language:
german
HWS:
3
CP:
3
offered in:
summer term

dates in summer term

  • start: Wednesday the 14.04.2021
  • lecture Wednesdays: from 10:15 to 11.45 o'clock
  • tutorial Fridays: from 12:15 to 13.00 o'clock

Exams

Die Angaben zu den Prüfungsmodalitäten (im WiSe 2020/2021 | SoSe 2021) erfolgen vorbehaltlich der aktuellen Situation. Notwendige Änderungen aufgrund universitärer Vorgaben werden zeitnah bekanntgegeben.

Date according to prior agreement with lecturer.

Form of exam:oral
Registration for exam:FlexNow
Duration:30min
description of exam:

Änderung der Prü­fungs­form im WiSe 20/21

Die Angaben zu den Prüfungsmodalitäten (im WiSe 2020/2021 | SoSe 2021) erfolgen vorbehaltlich der aktuellen Situation. Notwendige Änderungen aufgrund universitärer Vorgaben werden zeitnah bekanntgegeben.
Form of exam:written
Registration for exam:FlexNow
Date:17.09.2021
Begin:14:30
Duration:90min
Rooms : HMA 10,  HMA 20
Individual appointments of students to each exam location will be issued by the responsible chair.

goals

A basic understanding of (1) structural properties of crystalline materials, (2) electrical properties of metals, (3) the electronic properties of undoped and doped semiconductors and (4) atomistic mechanisms of dielectric and magnetic materials was gained.

content

The operation of electronic devices is based on the properties of the materials from which they are produced. What reason specifies a material to be a conductor or insulator and why does a semiconductor serves as basic material for microelectronic devices? The course “electronic materials” shall generate a fundamental understanding of the electronic properties of metals and semiconductors. For this we rely on the cohesion of solid materials (chemical bond) and the crystalline order which is present in many cases. Exemplified by metals a model for the origin of the electrical resistance is developed for DC and AC currents. After discussing the miscibility of metals for implementation in alloys some significant applications are presented. Relating the semiconductors the band gap is introduced and an overview of the relevant materials is given. The central chapters concerning doped and undoped semiconductors deal with the electronic properties and the possibility for tuning them in a wide range according to the application. The section concerning the fundamental aspects ends with a detailed discussion of physical mechanisms of electric transport in semiconductors. Two further important electronic materials are dielectric and magnetic materials. For both types field and material equations are introduced, the polarization types are discussed and finally the important family of both ferroelectric and piezo-electric as well as diamagnetic, paramagnetic, and ferromagnetic materials are presented.

requirements

keine

recommended knowledge

Mathematics: differential and integral calculus, Basics of Chemistry, Physics (basic courses grammar school), Fun­da­men­tals of Elec­tri­cal En­gi­nee­ring 1 (Elec­tric Cir­cuits)

miscellaneous

Im Som­mer­se­mes­ter 2021 wird die­se Vor­le­sung als on­line-ge­stütz­te Ver­an­stal­tung ohne Prä­senz­ver­an­stal­tun­gen durch­ge­führt.

Be­ginn ist Mittwoch, der 14.​04.​2021.

Die Selbst­ein­schrei­bung in den Moodle-Kurs ist nur vom 07.04.2021 bis zum 18.​04.​2021 mög­lich.

Pass­wort für die Selbst­ein­schrei­bung: etit-emat-2021

Mel­den Sie sich bei Mood­le bitte mit der Lo­gin-ID an, die Sie von der Ruhr-Uni­ver­si­tät Bochum er­hal­ten haben. Teil­neh­mer, die dies nicht be­ach­ten, wer­den aus dem Kurs ent­fernt.

Organisatorische Fragen richten Sie bitte per Email an: emat-mst(at)rub.de