Laboratory Courses

The following laboratory courses are offered by the Institute:

The first part deals with the determination of material parameters (5 experiments)

• Experiment 1: samples fabrication
• Experiment 2: atomic force microscopy on semiconductor surfaces
• Experiment 3: scanning electron microscopy (part I)
• Experiment 4: scanning electron microscopy (part II)
• Experiment 5: capacitance-voltage measurements

Start and dates of the experiments will be fixed during the planning meeting. Its date can be found on the overview.

Script: Will be partly distributed during the planning meeting or can be downloaded (Exp. 2, Exp. 5, password required).

Will be offered: each WS

The date of the planning meeting can be found on the overview.

Contact person and enrolment: Prof. Bakin

Experiments in the technology of semiconductor devices: fabrication of planar devices demonstrated by the case of an integrated circuit: all fabrication steps with several masks and subsequent measurement with the fabricated circuit. Among the process steps are oxidation, photolithography, diffusion, contacting, measurement of characterisics, functional test.

Start and dates of the experiments will be fixed during the planning meeting. Its date can be found on the overview.

Script: Can be downloaded including video sequences (68 MB, password required).

Will be offered: each SS

Contact person and enrolment: Prof. Bakin

Impressions:

During the lab course Room Lighting the students apply theoretical knowledge of the lecture and class of Lighting Engineering to practical experience and discuss real lighting situations in small groups. For this the students carry out professional measurements with documentation and appraisal. Additionally, the situations will be calculated manually (point lighting, efficiency method, power consumption) as well as automatically (simulation with ray tracing). Rooms and circulation spaces of the University are chosen which are equipped with modern lighting systems (T5 flourescent tubes or LEDs). Each group will create a poster and will present the chosen lighting situation as well as the achieved results.

The lab course completes the lecture and class of the module Lighting Engineering of the Master programme towards practical experiences. Especially the comparison of measured and calculated real lighting situations gives a clear relation between theory and practice. The documentation which has to be compiled corresponds to the planing and verification of a professional installation or a certification of a lighting system. For this purpose the acquired theoretical knowledge has to be applied to practical tasks which also trains a critical view to daily lighting situations.

Prerequisite: Lecture "Lighting Engineering 1".

Start and dates of the experiments will be fixed during the planning meeting.gt.

Will be offered: each SS

Contact person and enrolment: Prof. Waag, Dipl.-Ing. Ledig

Impressions taken from conference proceedings about courses: J. Ledig, E. Janas, and A. Waag, "Konzept und Erfahrungen vom Laborpraktikum Messen und Berechnen realer Raumbeleuchtung," Lux Junior Proc., 2017.

Experiments in

• basic knowledge of important mechanisms for organic surface functionalisation
• hands-on experience of self-assembling of monomolecular layers and thei characterisation by topographic and spectroskopic techniques
• ability to analyse the structure of thin organic layers and to evaluate their quality

Contents:

• electrochemical properties (impedance, CV),
• layer thickness and dielectric properties (ellipsometry),
• electronic workfunction (Kelvin probe),
• wetting (contact angle)

Will be offered: each SS

Contact person and enrolment: Prof. Voß