Analysis of Shape-memory Polymers with High Elastic Energy Storage Capacity

Ebna Zabir

Department of Mechanical Engineering

University of Rochester

Focus Ion Beam Lithography

The FIB lithography was performed via the use of Zeiss Auriga. This process is complex but provides very powerful results. The FIB lithography technique is essentially an ablation lithography using the ion beam with gallium ions. These gallium ions are knocking out some of the sample material and then we were left with the stamp shown in Figure 2.0. For this sample the FIB used a 600pA current for approximately 135 seconds.

Figure 2.0: Focus Ion Beam Lithography on the surface of the shape-memory polymer.

Colourization

Adobe Photoshop CS6 Extended to colourize the greyscale image to make them visually appealing.

Figure 2.1: Colourization of the lithography image. Yellow area indicates where the FIB was in contact with the sample.

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