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Nano Courses

A repository of courses and units are available for instructors who want to incorporate NSE into their existing course or desire to create a new course. Each Nanocourse or unit contains an introduction, main concepts, notes, lectures and accompanying homework assignments or in-class activities. All materials on the NanoEd Resource Portal are peer-managed and covered by a creative-commons attribution, non-commercial share-alike type licensing.

 
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What Can Electrons Do? - Electron Microscopy
J.G. Zheng and
Prof. V.P. Dravid
Northwestern University, IL, USA


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Unconventional Patterning at the Nanoscale    »» Main Menu


NANOSCALE TOOLS

Fabrication of Masters | Preparation of PDMS Stamps | Cleaving Si Wafers


Cleaving Si Wafers

One of the most essential nanoscale skills is cleaving Si wafers. This skill with be practiced in this lab exercise producing substrates that will be used in future patterning labs.

MATERIALS:

  • Si (100) Wafers
  • Wafer tweezer
  • Diamond Scribe, petri dish

PROCEDURE: (Click on pictures to view the videos)

*You will need QuickTime Player installed on your computer to view the videos.
 Download Player: For Mac | For PC

Press firmly down on the flat edge (indicates orientation along (110)) of the Si wafer using a diamond scribe while lightly holding a wafer tweezer on the opposite side. The wafer should break nicely in a straight line in half.

 

Follow the same procedure as above to cut each of the above halves into two.

 

Cut the Si wafer into eight pieces. Carefully place these pieces in a labelled petri dish for storage. These pieces will be used in future patterning labs.

 

 

 

 

 

 

 

Authors:
Prof. Teri W. Odom,
Dr. M. Viswanathan and Y. Babayan

Institution:
Northwestern University
Evanston, IL USA

Level:
College and above

In the classroom:
This Course is a video lab manual for hands on fabrication and characterization of materials at the nanoscale. Materials requirements range from simple chemicals, benchtop tools and CDs to necessary access to advanced characterization equipment such as an Scanning Tunneling Microscope.