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Author: Hiral M. Ajmera Publisher: ISBN: Category : Languages : en Pages :
Book Description
CVD thin film deposition from 3a, b, 4, and 5 highlights the importance of precursor selection and deposition parameters (e.g., coreactant selection, deposition temperature) on the film properties and diffusion barrier performance. Detailed film characterization and preliminary diffusion barrier testing revealed that films deposited with 3a, b and NH3 exhibited the most promise for diffusion barrier applications. To aid the precursor screening process and help understand the mechanism of precursor fragmentation prior to the growth studies, quantum mechanical (QM) calculations using density functional theory were carried out. Statistical mechanics along with QM calculations were employed to determine the energy barrier of potential reaction pathways which would lead to the deposition of WNxCy thin film. QM calculations for fragmentation of precursor 5 showed that the first step of precursor fragmentation was dissociation of the CH3CN ligand, followed by removal of the Cl ligands by either sigma-bond metathesis or reductive elimination.
Author: Hiral M. Ajmera Publisher: ISBN: Category : Languages : en Pages :
Book Description
CVD thin film deposition from 3a, b, 4, and 5 highlights the importance of precursor selection and deposition parameters (e.g., coreactant selection, deposition temperature) on the film properties and diffusion barrier performance. Detailed film characterization and preliminary diffusion barrier testing revealed that films deposited with 3a, b and NH3 exhibited the most promise for diffusion barrier applications. To aid the precursor screening process and help understand the mechanism of precursor fragmentation prior to the growth studies, quantum mechanical (QM) calculations using density functional theory were carried out. Statistical mechanics along with QM calculations were employed to determine the energy barrier of potential reaction pathways which would lead to the deposition of WNxCy thin film. QM calculations for fragmentation of precursor 5 showed that the first step of precursor fragmentation was dissociation of the CH3CN ligand, followed by removal of the Cl ligands by either sigma-bond metathesis or reductive elimination.
Author: Omar Bchir Publisher: ISBN: 9780530008301 Category : Technology & Engineering Languages : en Pages : 432
Book Description
Abstract: PhD Dissertation: MOCVD of WNx Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "Chemical Vapor Deposition of Thin Films for Diffusion Barrier Applications" by Omar James Bchir, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.
Author: Dojun Kim Publisher: ISBN: Category : Languages : en Pages :
Book Description
ABSTRACT: The ternary material WN[subscript x]C[subscript y] was investigated for Cu diffusion barrier application. Thin films were deposited from tungsten diorganohydrazido(2- ) complexes Cl4(CH3CN)W(NNR22) (1: R2=-(CH2)5-; 2: R2=Ph2; 3: R22=Me2) using metal-organic aerosol-assisted CVD. The films deposited from these novel precursors were characterized for their composition, bonding state, structure, resistivity, and barrier quality. WN[subscript x]C[subscript y] films from 1, 2 and 3 were successfully deposited in the absence and the presence of NH3 in H2 carrier in the temperature range 300 to 700 °C. All WN[subscript x]C[subscript y] films contained W, N, C, and a small amount of O as determined by XPS. The Cl content of the film was below the XPS detection limit (~ 1 at. %). The chemical composition of films deposited with 1 in H2/NH3 exhibited increased N levels and decreased C levels over the entire temperature range of this study as compared with to films deposited 1 in H2. As determined by XPS, W is primarily bonded to N and C for films deposited at 400 C, but at lower deposition temperature the binding energy of the W-O bond becomes more evident. The films deposited at 400 °C were X-ray amorphous and Cu/WN[subscript x]C[subscript y]/Si stacks annealed under N2 at 500 °C for 30 min maintained the integrity of both the Cu/WN[subscript x]C[subscript y] and WN[subscript x]C[subscript y]/Si interfaces.
Author: S Neralla Publisher: BoD – Books on Demand ISBN: 9535125729 Category : Science Languages : en Pages : 292
Book Description
This book provides an overview of chemical vapor deposition (CVD) methods and recent advances in developing novel materials for application in various fields. CVD has now evolved into the most widely used technique for growth of thin films in electronics industry. Several books on CVD methods have emerged in the past, and thus the scope of this book goes beyond providing fundamentals of the CVD process. Some of the chapters included highlight current limitations in the CVD methods and offer alternatives in developing coatings through overcoming these limitations.
Author: Jeffrey B. Fortin Publisher: Springer Science & Business Media ISBN: 147573901X Category : Science Languages : en Pages : 112
Book Description
Chemical Vapor Deposition Polymerization - The Growth and Properties of Parylene Thin Films is intended to be valuable to both users and researchers of parylene thin films. It should be particularly useful for those setting up and characterizing their first research deposition system. It provides a good picture of the deposition process and equipment, as well as information on system-to-system variations that is important to consider when designing a deposition system or making modifications to an existing one. Also included are methods to characterizae a deposition system's pumping properties as well as monitor the deposition process via mass spectrometry. There are many references that will lead the reader to further information on the topic being discussed. This text should serve as a useful reference source and handbook for scientists and engineers interested in depositing high quality parylene thin films.
Author: M. L. Hitchman Publisher: Academic Press ISBN: Category : Science Languages : en Pages : 692
Book Description
This wide-ranging volume covers recent developments in the theoretical understanding of the chemistry and physics of chemical vapour deposition (CVD). Contributors are drawn from both academia and industry to achieve a balaced coverage of the subject. The volume emphasizes principles and understanding rather than details of specific materials or processes. Specific examples are given to illustrate the principles.
Author: Hugh O. Pierson Publisher: William Andrew ISBN: 1437744885 Category : Technology & Engineering Languages : en Pages : 459
Book Description
Handbook of Chemical Vapor Deposition: Principles, Technology and Applications provides information pertinent to the fundamental aspects of chemical vapor deposition. This book discusses the applications of chemical vapor deposition, which is a relatively flexible technology that can accommodate many variations. Organized into 12 chapters, this book begins with an overview of the theoretical examination of the chemical vapor deposition process. This text then describes the major chemical reactions and reviews the chemical vapor deposition systems and equipment used in research and production. Other chapters consider the materials deposited by chemical vapor deposition. This book discusses as well the potential applications of chemical vapor deposition in semiconductors and electronics. The final chapter deals with ion implantation as a major process in the fabrication of semiconductors. This book is a valuable resource for scientists, engineers, and students. Production and marketing managers and suppliers of equipment, materials, and services will also find this book useful.
Author: Hiral M. Ajmera
Author: Hiral M. Ajmera
Author: Omar Bchir
Author: Omar James Bchir
Author: Dojun Kim
Author: S Neralla
Author: 
Author: Jeffrey B. Fortin
Author: M. L. Hitchman
Author: Jong-Hee Park
Author: Hugh O. Pierson