Author: Ka Chun Wong
Publisher:
ISBN:
Category :
Languages : en
Pages : 177

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Book Description

Author: Ka C. Wong
Publisher:
ISBN:
Category :
Languages : en
Pages : 177

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Author: Yajing Liu
Publisher:
ISBN:
Category :
Languages : en
Pages : 442

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Author: Sushrut Shekhar Naik
Publisher:
ISBN:
Category : Focused ion beams
Languages : en
Pages : 0

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Book Description
"The current revolution witnessed by nanotechnology is facing several challenges such as manufacturing of nano sized devices economically on a large scale. Focused ion beam (FIB) technology is one of the widely used approaches for nano-manufacturing due to its versatile nature. It provides accurate machining and process repeatability and has a range of applications. Major challenges for the current FIB process are the tradeoffs between quality, the processing time, and the long planning time. This research provides a pathway to eliminate the current problems facing nanotechnology. Using MATLAB and the Helios 600 FIB/SEM instrument available, modeling and analyses are carried out to find the optimized process planning for arbitrary 3D nanofeatures. This research provides information on the current status of the FIB machining process, while at the same time discusses the challenges in FIB manufacturing. It provides a methodology that can be used to achieve an increase in planning and processing efficiency without sacrificing fabrication quality. This is done with the help of an iterative algorithm developed to achieve the optimized solution to a quadratic programming problem. Furthermore, the analyses carried out provides with more information on the choice of the scanning spacing, its corresponding effects on the quality of the product and computational efficiency. This is illustrated with the threshold step size selection and the beam overlap phenomenon. The thesis concludes with the set goal of achieving an increase in the planning and processing efficiency while maintaining the quality. It provides possible future course of actions in the same field, such as the beam flexibility criteria, using the additive process and the serpentine scan for manufacturing"--Abstract, leaf iii

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 34

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Author:
Publisher:
ISBN:
Category : Catalonia (Spain)
Languages : en
Pages : 576

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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 980

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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 806

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Author: Matthias Worgull
Publisher: William Andrew
ISBN: 0815519745
Category : Technology & Engineering
Languages : en
Pages : 368

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Book Description
This book is an overview of replication technology for micro- and nanostructures, focusing on the techniques and technology of hot embossing, a scaleable and multi-purpose technology for the manufacture of devices such as BioMEMS and microfluidic devices which are expected to revolutionize a wide range of medical and industrial processes over the coming decade.The hot embossing process for replicating microstructures was developed by the Forschungszentrum Karlsruhe (Karlsruhe Institute of Technology) where the author is head of the Nanoreplication Group. Worgull fills a gap in existing information by fully detailing the technology and techniques of hot embossing. He also covers nanoimprinting, a process related to hot embossing, with examples of actual research topics and new applications in nanoreplication. A practical and theoretical guide to selecting the materials, machinery and processes involved in microreplication using hot embossing techniques Compares different replication processes such as: micro injection molding, micro thermoforming, micro hot embossing, and nanoimprinting Details commercially available hot embossing machinery and components like tools and mold inserts

Author: Goerg H. Michler
Publisher: Springer Science & Business Media
ISBN: 3540363521
Category : Technology & Engineering
Languages : en
Pages : 472

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Book Description
The study of polymers by electron microscopy (EM) needs special techniques, precautions and preparation methods, including ultramicrotomy. General characteristics of the different techniques of EM, including scanning force microscopy, are given in this hands-on book. The application of these techniques to the study of morphology and properties, particularly micromechanical properties, is described in detail. Examples from all classes of polymers are presented.