Instability and Patterning of Thin Polymer Films
Instability and Patterning of Thin Polymer Films. Instructor: Prof. R. Mukherjee, Department of Chemical Engineering, IIT Kharagpur. This course will expose students to the science of sub-micron, meso and nanoscale patterning of surfaces with special emphasis on thin soft films like gels, polymers etc. The course will focus on the different classes of thin film patterning techniques like the top down techniques (lithography), bottom up techniques (self assembly and self organization) as well as combination of the two (confined and template guided self organization) as well as focus on various engineering applications of the patterned thin films like super wetting and super hydrophobicity, structural color, metamaterials, super adhesives and easy release coatings, microfluidics etc. The course will be expose the students to the various soft lithography techniques and will focus on how hydrodynamics and capillarity plays and intriguingly critical role in evolution and pattern formation.
(from nptel.ac.in
Lecture 14 - Nano Imprint Lithography
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Introduction
Lecture 01 - Introduction: Patterns
Lecture 02 - Applications of Patterned Surfaces, Introduction to Instability
Fundamental Concepts related to Surface and Surface Tension
Lecture 03 - Some Fundamental Surface Related Concepts
Lecture 04 - Surface Tension (in terms of Molecular Interactions)
Lecture 05 - Effect of Surface Tension: Laplace Pressure
Lecture 06 - Young-Laplace Equation
Lecture 07 - Rayleigh Instability
Meso Scale Fabrication Approaches and Self Assembly
Lecture 08 - Meso Scale Fabrication Approaches
Photolithography
Lecture 09 - Photolithography Processes: Wafer Cleaning, Photoresist Processing
Lecture 10 - Photoresist Processing: Photoresist, Dehydration and Priming, Resist Coating
Lecture 11 - Spin Coating, Soft Baking, Photo Mask
Lecture 12 - Photolithography Processes: Mask Alignment, Exposure, Development
Lecture 13 - Photolithography Processes: Development, Hard Bake, Etching, Resist Strip
Nano Imprint Lithography
Lecture 14 - Nano Imprint Lithography
Lecture 15 - Nano Imprint Lithography (cont.)
Soft Lithography
Lecture 16 - Soft Lithography: Basics and Key Concepts
Lecture 17 - Soft Lithography Stamp, Dust on Film Surface, Pattern Replication Mechanism
Lecture 18 - Soft Lithography Techniques: Replica Molding, Micromolding in Capillaries
Lecture 19 - MIMIC (cont.), Solvent Assisted Micromolding, Capillary Force Lithography
Lecture 20 - Capillary Force Lithography (cont.)
Lecture 21 - Step-Flash Imprint Lithography, Microcontact Printing
Atomic Force Microscope
Lecture 22 - Scanning Probe Microscopes, Scanning Tunneling Microscope, Atomic Force Microscope
Lecture 23 - Major Components of an AFM: Probes or Tips, Photodetector
Lecture 24 - Photodetector (cont.), Operational Aspects: Alignment and Approach
Lecture 25 - Scanning Modes: Contact Mode, Non-contact Mode, Intermittent Contact Mode
Lecture 26 - AFM: Beyond Topographic Imaging
Intermolecular Forces between Particles and Surfaces
Lecture 27 - Intermolecular Forces between Particles and Surfaces
Lecture 28 - Potential Energy of Interaction between Two Blocks
Lecture 29 - Self Interaction, Excess Free Energy of a Film
Lecture 30 - Pure Van der Waals Interaction, Attractive Interfacial Interaction, Derjaguin Approximation
Spontaneous Instability and Dewetting of Thin Polymer Film
Lecture 31 - Spontaneous Instability and Dewetting of Thin Polymer Film I
Lecture 32 - Spontaneous Instability and Dewetting of Thin Polymer Film II
Lecture 33 - Spontaneous Instability and Dewetting of Thin Polymer Film III
Lecture 34 - Spontaneous Instability and Dewetting of Thin Polymer Film IV
Lecture 35 - Spontaneous Instability and Dewetting of Thin Polymer Film V
Lecture 36 - Spontaneous Instability and Dewetting of Thin Polymer Film VI
Lecture 37 - Spontaneous Instability and Dewetting of Thin Polymer Film VII
Lecture 38 - Template Guided Dewetting
Lecture 39 - Elastic Contact Instability and Lithography
Lecture 40 - Gradient Surfaces