A CRITICAL STUDY ON DEPOSITION, CHARACTERIZATION TECHNIQUES AND DEPOSITION SYSTEMS

Authors:

Manjula K, Dr. Satish Kumar

Page No: 445-450

Abstract:

Deposition, the process of depositing thin films or coatings onto various substrates, plays a pivotal role in diverse fields such as electronics, materials science, and nanotechnology. This abstract provides an overview of deposition techniques, characterization methods, and deposition systems employed in modern research and industrial applications. Deposition techniques encompass a wide range of methodologies, each tailored to specific requirements. Physical Vapor Deposition (PVD) methods, including evaporation and sputtering, involve the conversion of solid materials into vapor and subsequent condensation onto a substrate. Chemical Vapor Deposition (CVD) involves the reaction of precursor gases to form a solid film on the substrate. Atomic Layer Deposition (ALD) and Molecular Beam Epitaxy (MBE) offer precise control over layer thickness and composition at atomic scales. Other innovative techniques, such as electroplating, spray pyrolysis, and inkjet printing, further diversify the toolkit for material deposition. Characterization of deposited films is crucial for assessing their properties. Techniques like X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) provide information about crystal structure, morphology, and composition. X-ray photoelectron spectroscopy (XPS) and secondary ion mass spectrometry (SIMS) offer insights into chemical states and elemental composition. Additionally, ellipsometry, atomic force microscopy (AFM), and profilometry contribute to measuring thickness, surface roughness, and mechanical properties. Deposition systems have evolved to accommodate various materials and applications. Vacuum systems are commonly used in PVD and CVD processes to ensure controlled environments and minimize contamination. High-throughput systems are designed for large-scale production, whereas research-oriented systems prioritize flexibility and advanced control. Modular designs facilitate the integration of multiple deposition techniques into a single system, enabling the creation of complex multilayer structures.

Description:

Films, Material, Electronics, nanotechnology

Volume & Issue

Volume-10,ISSUE-11

Keywords

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