What This Document Is
This document consists of lecture slides detailing advanced techniques in nanoscale fabrication, specifically focusing on a method called capillary lithography. It explores the principles behind creating high-aspect-ratio nanostructures and delves into the factors influencing their formation. The slides present research findings related to the application of this lithography technique for various nanoscale devices and structures. It appears to be part of the ELENG C235 Nanoscale Fabrication course at the University of California, Berkeley.
Why This Document Matters
This resource is ideal for students enrolled in nanotechnology, microfabrication, or related engineering disciplines. It’s particularly valuable for those seeking a deeper understanding of lithographic processes beyond traditional photolithography. Researchers investigating novel nanofabrication methods or exploring applications in areas like photonics and biosensors will also find this material beneficial. It’s best utilized as a supplement to lectures and textbook readings, providing a visual and focused exploration of capillary lithography.
Topics Covered
* Fundamentals of periodic nanostructure creation
* Detailed explanation of capillary lithography principles
* Influence of mold geometry (height, shape) on nanostructure formation
* Impact of film thickness and material properties on resulting structures
* Considerations for solvent and gas permeation during the lithographic process
* Applications of fabricated nanostructures in areas like photonic crystals and data storage
* Analysis of different nanostructure morphologies (nanopillars, nanospheres)
What This Document Provides
* Visual representations (SEM images) of molds and resulting nanostructures
* Schematic illustrations explaining the formation mechanisms of different structures
* Discussion of key parameters affecting the lithographic process
* Exploration of the relationship between mold characteristics and final structure dimensions
* Insights into the challenges and considerations when using capillary lithography with different materials (polyurethane acrylate, PEG-based polymers)
* A focused overview of research related to capillary lithography and its applications.
