Lithography Extensions

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Return to the Lithography Challenge.

This module can be presented by itself, as is done in the sample module, or in tandem with another module. The lithography device works well with the nanomanipulator project, tasking students to draw basic or complex shapes with the devices they have created. The analogy with real lithography is far better, however, if students are required to make the device perform repeatably without human intervention. This can be done by using the lithography project as an extension to a sample table creation project (see the MFM Challenge), or when asking students to improve upon the NanoEnlightenment table design. Below we outline a few options in presenting this challenge.

Contents

Challenges

Basic Shapes

One option is to rate student performance in the challenge based on the complexity of the shapes they can draw with their device. In the sample module we present rectangle/triangle/circle as a challenge, but more complex shapes may be possible given time and a little cleverness. For example: students could be graded on the number of distinct sides they can give to a figure. Polygons with increasing numbers of distinguishable sides would be worth increasing number of points.

Repeatability Tasks

Evaluation can be based not only on how complex of a shape can be drawn, but also how repeatable the device design allows such patterns to be. In true lithography repeatability is an absolute necessity. Students can be asked to have their device repeat the same task multiple times, and evaluation can be based on the similarity of the copies.

Documenting Design Evolution

While constructing our demonstration version of the lithograph device we realized that it may serve as a good basis for instruction of documentation of phased designs. Any design process going through multiple, distinct, revision could be used to teach such a concept. We provide a simple example at: Lithography Design Evolution.

Build Instructions

If you wish to provide students with instructions for building the physical components of the lithography device, they can be found here. This structure will need to be added to the NanoEnglightenment sample table detailed in order to be useful. Instructions for building the sample table base can be found here, you need only pay attention to steps 2-41 & 58-63. We have also provided sample code which can be used to draw a simple rectangle. Please note that this program will require some calibration.

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