schedule - rwth aachen university · regulations for the physics master lab course ss17 ... f5 m1...

Regulations for the physics Master lab course SS17

Lars Schreiber | Quantum Technology Group | 19.04.20171

Schedule

http://institut2a.physik.rwth-aachen.de/teaching/praktikum-physikmaster

http://institut2a.physik.rwth-aachen.de/teaching/praktikum-physiknano

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Schedule for lab courses condensed matter physics and nano electronics

SS 2017

Days in

Labor

Wed Wed Wed Wed Wed Wed Wed Wed Wed Wed Wed 2nd Labor ED Block Block

03.05. -09.05. 10.05. -16.05. 17.05. -23.05. 24.05. -30.05. 31.05. -06.06. 07.06. -13.06. 14.06. -20.06. 21.06. -27.06. 28.06. -04.07. 05.07. -11.07. 12.07. -18.07. Day Jülich C CMOS

F1 M6 M8 M8 M3 M2 M4 Tue 1 1

F2 M1 M1 M2 M3 M8 M8 Thu 1 1

F3 M1 M1 M8 M8 Fri 1 2 1

F4 M8 M8 M3 M6 Thu 1 2 1

F5 M1 M1 M7 M4 M8 M8 Thu 1 1

F6 7 0

F7 M7 M8 M8 M3 Thu 1 2 1

F8 M2 M6 M7 M3 1 2 1

F9 M1 M1 M6 M4 M3 M2 1 1

F10 7 0

F11 7 0

F12 M6 M1 M1 M5 M5 M3 Fri 1 1

F13 M3 M6 M1 M1 1 2 1

F14 M4 M2 M1 M1 1 2 1

F15 M7 M1 M1 M5 M5 M6 1 1

F16 M4 M3 M5 M5 M1 M1 1 1

F17 M4 M1 M1 M6 M5 M5 1 1

F18 M3 M5 M5 M1 M1 M7 1 1

F19 M3 M1 M1 M7 M5 M5 1 1

1

N1 M6 M1 M1 Mon 4 0 0

N2 2 5 0

N3 2 5 0

N4 M6 M1 M1 4 0 0

N5 M1 M1 M6 4 0 0

N6 M2 M3 M6 4 0 0

http://institut2a.physik.rwth-aachen.de/teaching/praktikum-physikmaster



Schedule

M1: Atomic force microscopy (2 days)

M2: Quantum transport

M3: Superconductivity and SQUID

M4: Photoluminescence

M5: Ultrasonic sound (2 days)

M6: High-frequency measurement

M7: Mass spectrometry

M8: Pseudo-MOSFET (2 days)

2nd experiment day according to list (important for M1)

F-groups: Choose a laboratory experiment online from 19.4. to 26.4.

(exception: groups F6, F10, F11 do not require an L-experiment)

N-groups: block B in Jülich and block C at IWE (intro 27.4., 13.00, Seminarraum

S1 WSH given by Dr. Schneller)

Wed Wed Wed Wed

03.05. -09.05. 10.05. -16.05. 17.05. -23.05. 24.05. -30.05.

F1 M6 M8 M8 M3

F2 M1 M1 M2 M3

F3 M1 M1

F4 M8 M8 M3 M6

F5 M1 M1 M7

F6



Laboratory Experiments

• State-of-the-art experiments

• 3 preferences can be given

• Each 1 experiment day

• L01 Scanning tunneling microscope

• L02 Electrical transport through graphene/novel 2D materials

• L03 Spin transport in graphene

• L04 Spin coherence in 2D semiconductors

• L05 Raman spectroscopy on CVD graphene

• L08 Micro- and nano-lithography

• L10 Microwave readout of a SQUID

• L11 Pulsed laser deposition

• L12 Electron spin qubits



CMOS Lab course at IHT

Objectives of the Course:

• Fabrication of a Si-chip with

CMOS transistors and digital

circuit building blocks (inverters,

NAND-gate, half-adder)

• Characterization of the fabricated

transistors allows observing the

impact of fabrication on device and

circuit performance

During the course students will learn how to do …

• cleanroom fabrication, inlcuding

wafer cleaning

optical lithography (resist coating, mask aligner, development)

plasma-enhanced CVD

rapid thermal oxidation

dry etching (ICP-RIE)

metallization (etching and lift-off)

• characterization, including

spectroscopic ellipsometry

scanning electron microscopy

electrical characterization



CMOS Lab course at IHT

Organization of the Course:

• The course is subdivided into 7 sessions (4.5h) and will take place every other Wednesday

starting April 19th. No L-experiment required.

• Fabrication will be carried out in the Central Lab for Micro- and Nanotechnology (CMNT),

Otto-Blumenthalstraße 4

• There will be homework assignments. Students will have to generate a run sheet, simulate

the doping profiles, determine the time and temperature needed for gate oxide growth etc.

• In addition, students will have to prepare each session in terms of the tools and techniques

that will be used.

• Instead of a report, a research paper in the style of an IEEE Transactions on Electron

Devices has to be written by each participant.



Intro-discussion

Tutor assumes all students are prepared by reading the instructions (available online) and

the literature (given in the instructions).

You also have to prepare the set-up, methods to be used, step size of measurement,

schedule the parts of the experiment.

The intro-discussion (incl. introduction to the set-up) will take 60 - 120 min.

3The student well knows all important points of the manual

and the experimental procedure.

2The student had some lack of knowledge, but during the

intro-discussion this lack could be eliminated.

1

There was significant deficit of knowledge. However, the

experiment can be executed (maybe due to some additional

measures like reading in the library for 1-2h)

0

There was significant deficit of knowledge without the

chance of executing the experiment

⇒ all parts of the experiment are marked with 0 points



Execution

Every group makes notes during the measurement (incl. set-up with parameters

and sketch, preliminary measurements)

During the day of the experiment the tutor is accessible.

At the end of the experiment, the tutor signs the measurement notes. Its quality

and correctness has to be checked. There is a final discussion about the results

and the tutor’s expectation of the protocol.

3The experiment was conducted without considerable

assistance of the tutor.

2

At least one major intervention of the tutor was necessary to

finish the experiments (that excludes broken or defective

equipment).

1Multiple considerable help was necessary to conduct the

experiment.

0The experiment was not conducted at all or not reasonably

finished.



Protocol

Detailed analysis of the measurement in the protocol.

Every group hands in one protocol. A maximum of 3 authors can be written on a protocol→

same grade for all authors.

Protocols has to be handed in the secretary office 28C308 or via email to the tutor latest 2

weeks after the measurement. You should receive the corrected protocol within 2 weeks.

Content of the protocol in a concise form (max. 20 pages for single-day/ 30 pages for double

day- experiments):

1. Aim of the measurement (approx. 1 page)

2. Conception of the set-up and measurement (sketches and figures of the set-up and

measurement techniques).

3. Analysis of the measurement result with suitable plots for visualization.

4. Calculation of measurement errors.

5. Concise discussion and evaluation of the results

(if applicable comparison to literature values, discussion of dis-/agreement)

Protocol should not contain:

1. Theory

2. Repetition of the explanation from the instructions.

3. Redundant information concerning set-up and execution (not contributing to the result)



Protocol

Attempt of deception (passages copied from other protocols or data measured by

other groups)

⇒ Exclusion from the lab course.

3The protocol covers all important points and is written in a

clear way.

2Protocol contains some minor mistakes (e.g. imprecise

explanations, calculation errors, incomplete figures/sketches).

1Protocol contains major mistakes (severe content mistakes,

very messy format).

0

Important parts of the protocol are missing (no calculation of

the measurement error, significant parts of the experiments

are missing). Protocol handed in too late or not at all.

protocols handed in for at least 5 experimental days!



Protocol written in

paper style

• Relevant for experiments M1, M5 (2 days experiment).

• Imagine you publish your results in a scientific journal.

• Paper template and guidelines is available on the webpage



Marking

9 points per experiment day (7 days)

Lab course passed (mark 4.0), if at least 41% of total points reached

and protocols handed in for at least 5 experimental days (new!)

mark points

1.0 60-63

1.3 57-59.5

1.7 54-56.5

2.0 51-53.5

2.3 48-50.5

2.7 45-47.5

3.0 42-44.5

3,3 38-41.5

3.7 34-37.5

4.0 26-33.5

(Half points can be given)



Language

English Master:

• All manuals of the experiments are available in English on the

webpage.

• Whole webpage for lab-course is in English.

• The experiment and intro-discussion will be in English.

• Protocol has to be written in English (Some tutors are English-

speaking only!)



Evaluation

To improve the lab course, we do evaluations on different experiments.

You will get an anonymous access code from your tutor for each

experiment you perform. This code allows you to access the online

evaluation system and answer a short array of questions.

https://institut2a.physik.rwth-aachen.de/teaching/praktikum-evaluierung

The evaluation is very important to us. Ask

the tutor actively for the evaluation code

and contact me if you do not receive one!



Important

announcements

• Experiment M8 (Pseudo-MOSFET) always starts on Tue not

Wed. The 2nd day is the Wed after the Tue.

• CMOS block (groups F6, F10, F11): organized by Prof. Knoch

• F-groups, please send me your Lx preferences (deadline 26.4.)

• Please check whether you are signed in Campus

(if you are in BSc you have to apply at ZPA for master course)

schedule - rwth aachen university · regulations for the physics master lab course ss17 ... f5 m1...

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