Presentation Title

The Physical Design of a Scanning Tunneling Microscope

Start Date

November 2016

End Date

November 2016

Location

HUB 302-#91

Type of Presentation

Poster

Abstract

The goal of this research is to design and construct a low cost Scanning Tunneling Microscope (STM) by utilizing inexpensive tools, and applying basic mechanical, electrical, and programming techniques. The affordability and modesty of this design is intended to expand the exposure of surface microscopy to a broader range of students. We have designed 3D CAD models of the prototype and its intermediate construction jigs in order to optimize the dimensions and to guide the construction of physical structures. The purpose of intermediate jigs was to help create reproducible and consistent components for the overall assembly of the STM. Building all the components required an iterative design approach involving three main steps. The first step involved the construction of the prototype components based off the 3D CAD models. The construction itself was done using simple tools and simple soldering operations. The second step was testing the components to see if they could meet the necessary performance. After analyzing the results of the tests, the third step was the redesign and reconsideration of the 3D models and materials, beginning the cycle again. Thus far, we have produced a stable, low-cost mechanical prototype of the STM and are in the process of integrating the electronic circuitry and software.

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Nov 12th, 4:00 PM Nov 12th, 5:00 PM

The Physical Design of a Scanning Tunneling Microscope

HUB 302-#91

The goal of this research is to design and construct a low cost Scanning Tunneling Microscope (STM) by utilizing inexpensive tools, and applying basic mechanical, electrical, and programming techniques. The affordability and modesty of this design is intended to expand the exposure of surface microscopy to a broader range of students. We have designed 3D CAD models of the prototype and its intermediate construction jigs in order to optimize the dimensions and to guide the construction of physical structures. The purpose of intermediate jigs was to help create reproducible and consistent components for the overall assembly of the STM. Building all the components required an iterative design approach involving three main steps. The first step involved the construction of the prototype components based off the 3D CAD models. The construction itself was done using simple tools and simple soldering operations. The second step was testing the components to see if they could meet the necessary performance. After analyzing the results of the tests, the third step was the redesign and reconsideration of the 3D models and materials, beginning the cycle again. Thus far, we have produced a stable, low-cost mechanical prototype of the STM and are in the process of integrating the electronic circuitry and software.