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Author : Thorsten Bauer
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (961 download)
Download or read book Development of an Industrial Femtosecond Laser Micromachining System written by Thorsten Bauer and published by . This book was released on 2000 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nathan G. Worts
Publisher :
ISBN 13 :
Total Pages : 113 pages
Book Rating : 4.:/5 (18 download)
Download or read book Development of Single Element Detection Imaging Systems and Femtosecond Laser Micromachining for Additive Manufacturing Processes written by Nathan G. Worts and published by . This book was released on 2018 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zdravko Stanimirović
Publisher : BoD – Books on Demand
ISBN 13 : 1789238099
Total Pages : 174 pages
Book Rating : 4.7/5 (892 download)
Download or read book Micromachining written by Zdravko Stanimirović and published by BoD – Books on Demand. This book was released on 2019-11-20 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: To present their work in the field of micromachining, researchers from distant parts of the world have joined their efforts and contributed their ideas according to their interest and engagement. Their articles will give you the opportunity to understand the concepts of micromachining of advanced materials. Surface texturing using pico- and femto-second laser micromachining is presented, as well as the silicon-based micromachining process for flexible electronics. You can learn about the CMOS compatible wet bulk micromachining process for MEMS applications and the physical process and plasma parameters in a radio frequency hybrid plasma system for thin-film production with ion assistance. Last but not least, study on the specific coefficient in the micromachining process and multiscale simulation of influence of surface defects on nanoindentation using quasi-continuum method provides us with an insight in modelling and the simulation of micromachining processes. The editors hope that this book will allow both professionals and readers not involved in the immediate field to understand and enjoy the topic.
Author : Roberto Osellame
Publisher : Springer Science & Business Media
ISBN 13 : 364223366X
Total Pages : 485 pages
Book Rating : 4.6/5 (422 download)
Download or read book Femtosecond Laser Micromachining written by Roberto Osellame and published by Springer Science & Business Media. This book was released on 2012-03-05 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Femtosecond laser micromachining of transparent material is a powerful and versatile technology. In fact, it can be applied to several materials. It is a maskless technology that allows rapid device prototyping, has intrinsic three-dimensional capabilities and can produce both photonic and microfluidic devices. For these reasons it is ideally suited for the fabrication of complex microsystems with unprecedented functionalities. The book is mainly focused on micromachining of transparent materials which, due to the nonlinear absorption mechanism of ultrashort pulses, allows unique three-dimensional capabilities and can be exploited for the fabrication of complex microsystems with unprecedented functionalities.This book presents an overview of the state of the art of this rapidly emerging topic with contributions from leading experts in the field, ranging from principles of nonlinear material modification to fabrication techniques and applications to photonics and optofluidics.
Author : Sandip Kunar
Publisher : John Wiley & Sons
ISBN 13 : 1394213573
Total Pages : 500 pages
Book Rating : 4.3/5 (942 download)
Download or read book Laser-Assisted Machining written by Sandip Kunar and published by John Wiley & Sons. This book was released on 2024-06-05 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: LASER-ASSISTED MACHINING This unique book develops exhaustive engineering perceptions of different laser-assisted techniques, reviews the engineering context of different laser fabrication techniques, and describes the application of laser-assisted fabrication techniques. Lasers are essential in the area of material processing because they can produce coherent beams with little divergence. The fabrication process known as surface cladding includes joining (soldering, welding), material removal (laser-aided drilling, cutting, etc.), deformation (extrusion, bending), and material addition. Some remarkable advantages of laser-assisted material development include faster processing rates and preservation of essential alloying components. However, the lack of widespread understanding of various material phenomena and how laser parameters affect them prevents the technology from being widely accepted on an industrial scale. Among the subjects Laser-Assisted Machining covers include high-powered lasers in material processing applications, laser-based joining of metallic and non-metallic materials, direct laser cladding, laser surface processing, laser micro and nano processing, emerging laser materials processing techniques, solid-state lasers, laser cutting, drilling and piercing, laser welding, laser bending or forming, laser cleaning, laser automation and in-process sensing, femtosecond laser micromachining, laser-assisted micro-milling/grinding, laser-assisted jet electrochemical micro-machining, laser-assisted water jet micro-machining, hybrid laser-electrochemical micromachining process, quill and nonreciprocal ultrafast laser writing, laser surface engineering, ultrashort pulsed laser surface texturing, laser interference patterning systems, laser interference lithography, laser-guided discharge texturing. Audience The book will be used by researchers in the fields of manufacturing technology and materials science as well as engineers and high-level technicians for a better understanding of various innovative and novel techniques to cope with the need of micromachining, as well as microfabrication industries for successful implementation of microproduct manufacturing.
Author : Yong Chae Lim
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (759 download)
Download or read book Development and Demonstration of Femtosecond Laser Micromachining Processes for Biomedical Applications written by Yong Chae Lim and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ronald Schaeffer
Publisher : Taylor & Francis
ISBN 13 : 1439860564
Total Pages : 249 pages
Book Rating : 4.4/5 (398 download)
Download or read book Fundamentals of Laser Micromachining written by Ronald Schaeffer and published by Taylor & Francis. This book was released on 2016-04-19 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to their flexible and efficient capabilities, lasers are often used over more traditional machining technologies, such as mechanical drilling and chemical etching, in manufacturing a wide variety of products, from medical implants, gyroscopes, and drug delivery catheters to aircraft engines, printed circuit boards, and fuel cells. Fundamentals
Author : ChangKyoo Park
Publisher :
ISBN 13 :
Total Pages : 147 pages
Book Rating : 4.:/5 (924 download)
Download or read book Development of Precise Femtosecond Laser Micromachining Processes for Metals and Electrospun Nanofibers written by ChangKyoo Park and published by . This book was released on 2015 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Femtosecond pulse lasers have proven to be versatile for micro-scale ablation of a variety of materials with high quality machining due to minimal residual stress, heat affected zone, and melting. In addition, femtosecond laser is one of the non-cleanroom techniques that does not require masking, chemical reagents, and multiple steps. This simple and convenient micromachining technique enables machining of various materials in 3-dimensional geometry. However, some factors such as optical scattering, beam shape, and debris accumulation hinder the high quality of ablation. In this dissertation, femtosecond laser was employed for the micromachining of electrospun nanofibers and metals. Optimization of a process for the high quality femtosecond laser machining was investigated. Femtosecond laser and electrospun poly(e-caprolactone) (PCL) nanofibers mesh interaction was analyzed by optical property measurements and the optical absorption and scattering coefficients were estimated. The specific energy required for ablating a unit volume of pure PCL nanofibers and polydimethylsiloxane-poly(e-caprolactone) (PDMS-PCL) core-shell nanofibers was measured. Material inherent optical properties including the ablation threshold fluence and the incubation coefficient of PDMS and PCL were estimated. Circular grooves were fabricated on aluminum, stainless steel 316, and Stellite 6 and circular disks were successfully machined from a thick section of Stellite. The tapered cross-section was detected from the Stellite disk and the tapering was minimized by varying pulse energy during ablation process. Moreover, a novel debris removal technique based on DC-dielectrophoresis (DEP) force was used to machine the linear and circular grooves on aluminum and the ablation depth and precision were compared with the gas jet debris removal technique.
Author : Hong Seok Choi
Publisher :
ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.:/5 (89 download)
Download or read book Development of Laser-based Meso/micro Rapid Manufacturing System written by Hong Seok Choi and published by . This book was released on 2002 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Simon Andrew Ashforth
Publisher :
ISBN 13 :
Total Pages : 222 pages
Book Rating : 4.:/5 (119 download)
Download or read book Enhanced Femtosecond Laser Micromachining of Biological Hard Tissue and Industrial Materials written by Simon Andrew Ashforth and published by . This book was released on 2019 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arvind Ramachandran
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (561 download)
Download or read book Automated Motion Planning for a Femtosecond Laser Micromachining System written by Arvind Ramachandran and published by . This book was released on 2004 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : 邱繼正
Publisher :
ISBN 13 :
Total Pages : 111 pages
Book Rating : 4.:/5 (828 download)
Download or read book Development of Excimer Laser Micromachining System for Fabricating Microlens Array and Its Application written by 邱繼正 and published by . This book was released on 2012 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Satvik Jagadeesh
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (113 download)
Download or read book Development of Machine Vision Based Workstation for Laser Micromachining written by Satvik Jagadeesh and published by . This book was released on 2018 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, laser based micromachining technologies enable the most advanced material manufacturing. Since it has wide range of applications in Microelectronics, medical device, aerospace etc., the accuracy of the process is of utmost significance. The current project proposes a machine vision assisted workstation for laser micromachining. The machine vision system not only has the ability to control the Laser path but also has the ability to locate the starting point of machining. The system was designed and developed from basic components, while MATLAB was used to control the laser direction, and to image the specimen. To analyse the limitations of the developed system, a rectangular shape was machined. Subsequently, known magnitudes of translational and rotational movements were given to the specimen. The images of machined area were captured before and after transformation. MATLAB algorithm was used to process the images to find the initial point of machined area on the transformed specimen. The laser beam is then guided to that point and the machining is repeated. The specimen was measured under microscope to find the error between the former and latter machined paths. Translational and angular errors were measured for various transformations. In this study, the challenges and corresponding possible solutions that are encountered in machining complex geometries are addressed. The study proposes mathematical function based and image processing based algorithms to find the machining coordinates and function-based approach was found to be more efficient for complex geometries. Furthermore, the effect of process parameters on the overall quality of the manufacturing are discussed. The COMSOL software was used to model all the effect of laser parameters on the roughness, depth and thickness of machined path. To validate the numerical model, experiments were conducted for different process parameters the results are in good agreement with a simulation results. The simulated model can be used to estimate the effect of the process parameters before the machining. Since the laser beam can be controlled on the geometry of the specimen and the study demonstrates the minimum possible error, this system can be applied to manufacture and repair wide range of microstructures.
Author : Qiumei Bian
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (823 download)
Download or read book Femtosecond Laser Micromachining of Advanced Materials written by Qiumei Bian and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Femtosecond (fs) laser ablation possesses unique characteristics for micromachining, notably non-thermal interaction with materials, high peak intensity, precision and flexibility. In this dissertation, the potential of fs laser ablation for machining polyurea aerogel and scribing thin film solar cell interconnection grooves is studied. In a preliminary background discussion, some key literature regarding the basic physics and mechanisms that govern ultrafast laser pulse interaction with materials and laser micromachining are summarized. First, the fs laser pulses are used to micromachine polyurea aerogel. The experimental results demonstrate that high quality machining surface can be obtained by tuning the laser fluence and beam scanning speed, which provides insights for micromachining polymers with porous structures. Second, a new fs laser micro-drilling technique is developed to drill micro-holes in stainless steel, in which a hollow core fiber is employed to transmit laser pulses to the target position. The coupling efficiency between the laser and the fiber is investigated and found to be strongly related to pulse energy and pulse duration. Third, the fs laser with various energy, pulse durations, and scanning speeds has been utilized to pattern Indium Tin Oxide (ITO) glass for thin film solar cells. The groove width decreases with increasing pulse duration due to the shorter the pulse duration the more effective of the energy used to material removal. In order to fully remove ITO without damaging the glass, the beam scanning speed need to precisely be controlled. Fourth, fs laser has been utilized to scribe Molybdenum thin film on Polyimide (PI) flexible substrate for Copper Indium Gallium Selenide (CIGS) thin film solar cells. The experimental parameters and results including ablation threshold, single- and multiple-pulse ablation shapes and ablation efficiency were discussed in details. In order to utilize the advantages of the fs lasers, the fabrication process has to be optimized for thin film patterning and structuring applications concerning both efficiency and quality. A predictive 3D Two Temperature Model (TTM) was proposed to predict ablation characteristics and help to understand the fs laser metal ablation mechanisms. 3D temperature field evolution for both electrons and lattice were demonstrated. The ablation model provides an insight to the physical processes occurring during fs laser excitation of metals. Desired processing fluence and process speed regime can be predicted by calculating the ablation threshold, ablation rate and ablation crater geometry using the developed model.
Author : Raif Farkouh
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (12 download)
Download or read book Femtosecond Laser Micromachining of Low-temperature Co-fired Ceramic and Glass Fiber Reinforced Polymer Printed Circuit Boards Materials written by Raif Farkouh and published by . This book was released on 2017 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-temperature co-fired ceramic (LTCC), and glass fiber reinforced polymer (GFRP) printed circuit boards (PCBs) are two materials used for the packaging of electronics. The excellent mechanical and electrical properties of LTCC, combined with the ability to embed passive components offer superior radio frequency (RF) performance and device miniaturization for high-frequency applications. Due to its unique properties, LTCC provides superior performance in applications as diverse as military radar, imaging systems, advanced automotive sensing, telecommunications, and satellites. The use of LTCC in these applications has created a demand for the micromachining of holes, channels, and cavities with specific geometries and structures. Likewise, GFRP PCBs are the backbone of the electronics industry. They work to mechanically support and electrically connect components using conductive tracks, pads and other features etched from copper sheets laminated onto GFRP substrate. Since the electronics industry has been moving toward devices with smaller size and lower cost, there has been an increasing need to drill holes in GFRP PCBs with high quality and efficiency. Some of the conventional techniques used to machine LTCC and GFRP PCBs are micro punching, mechanical milling, and electrical discharge machining. These techniques can machine some structures on LTCC and GFRP PCBs, but the drawbacks such as geometry-limitation, wear and tear of tools, high-cost, complex equipment, lack of flexibility and crack-tendency limit the application of these techniques. Femtosecond laser micromachining is a comparatively new technique that offers a solution to meet the challenging demand for drilling of LTCC and GFRP PCBs. The unique properties of ultrashort pulse width and the extremely high peak intensity allow fs laser to drill high-quality holes and to minimize thermal and mechanical damage by the term of "cold" ablation mechanism. In this project, efficient processes for femtosecond laser drilling of LTCC and GFRP PCBs for RF packaging were developed. A high drilling quality with no trace of dross, debris and reacting layer was achieved. The effects of the laser parameters, including pulse energy, scanning speed, focal position, and pitch, on the hole quality, were investigated. A laser polishing process of LTCC was also developed since the reduction of surface roughness is of practical importance for achieving low microwave loss.
Author : Takeshi Kamiya
Publisher : Springer Science & Business Media
ISBN 13 : 9783540659969
Total Pages : 464 pages
Book Rating : 4.6/5 (599 download)
Download or read book Femtosecond Technology written by Takeshi Kamiya and published by Springer Science & Business Media. This book was released on 1999 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent rapid advances in femtosecond technology have had a great impact on its industrial applications, including ultrafast optoelectronic devices and optical. telecommunication systems, ultrashort-pulse lasers and measurement systems, and the development of novel materials for ultrafast functions. In this book, a wealth of knowledge covering requirements for applications as well as details of recent achievements in important technical areas is presented by internationally renowned authors in a concise, systematic form. As a whole, this is the first comprehensive book on the emerging field of femtosecond technology.
Author :
Publisher : GRIN Verlag
ISBN 13 : 3638147770
Total Pages : 233 pages
Book Rating : 4.6/5 (381 download)
Download or read book Comparative Study of the Capabilities of Various Micromachining Processes written by and published by GRIN Verlag. This book was released on 2002-10-16 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2002 in the subject Engineering - Mechanical Engineering, grade: 1.0 (A), University of Illinois at Chicago (Department of Mechanical Engineering), language: English, abstract: Introduction 1.1 Background and Motivation There has been a significant increase in the importance of miniature parts in recent years. The forerunner of this technology was mostly the electronics industry with their need of manufacturing processes for electronic components, like printed circuit boards and integrated circuits. The market of microsystem technologies is in general a very fast growing market. According to a study of the European NEXUS organization (Network of Excellence in Multifunctional Microsystems), the worldwide market for microsystem technologies is growing at an average rate of 18% a year to a total of $38 billion in 2002. However, the focus of the development is distributed different in certain countries. While the US has for example a focus on parts for micro-electro-mechanical systems (MEMS), equipment for information technology, biomedicine and genetic engineering, Germany dominates in sensor technology for the automotive industry. Japan has traditionally a strong position in fine mechanics and precision engineering as well as in equipment for information technology and consumer goods. Until recently, the production of miniature components was focused on technologies, traditionally used in the electronics and semiconductor industry, like etching and other photofabrication techniques. Using these technologies extremely small feature sizes can be produced. Optical lithography for example produces features as small as 0.18 um and X-ray lithography can be used to produce even smaller features. Table 1.1 gives an overview of some of the methods which can be used for the production of miniature parts. An introduction to these techniques is given in some papers which brie y summarize different micromachining methods. A very good paper was published by Masuzawa. The most complete description of different processes is included in the book "Fundamentals of microfabrication: the science of miniaturization" by Marc J. Madou. Some other papers summarizing different micromachining methods are for example. [...]
