The Assessment and Development of Scanning Electron Microscopy in the Semiconductor Materials and Device Physics Field

Download The Assessment and Development of Scanning Electron Microscopy in the Semiconductor Materials and Device Physics Field PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)

DOWNLOAD NOW!


Book Synopsis The Assessment and Development of Scanning Electron Microscopy in the Semiconductor Materials and Device Physics Field by : David Vernon Sulway

Download or read book The Assessment and Development of Scanning Electron Microscopy in the Semiconductor Materials and Device Physics Field written by David Vernon Sulway and published by . This book was released on 1968 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Field Emission Scanning Electron Microscopy

Download Field Emission Scanning Electron Microscopy PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 9811044333
Total Pages : 143 pages
Book Rating : 4.8/5 (11 download)

DOWNLOAD NOW!


Book Synopsis Field Emission Scanning Electron Microscopy by : Nicolas Brodusch

Download or read book Field Emission Scanning Electron Microscopy written by Nicolas Brodusch and published by Springer. This book was released on 2017-09-25 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights what is now achievable in terms of materials characterization with the new generation of cold-field emission scanning electron microscopes applied to real materials at high spatial resolution. It discusses advanced scanning electron microscopes/scanning- transmission electron microscopes (SEM/STEM), simulation and post-processing techniques at high spatial resolution in the fields of nanomaterials, metallurgy, geology, and more. These microscopes now offer improved performance at very low landing voltage and high -beam probe current stability, combined with a routine transmission mode capability that can compete with the (scanning-) transmission electron microscopes (STEM/-TEM) historically run at higher beam accelerating voltage

Evaluation of Advanced Semiconductor Materials by Electron Microscopy

Download Evaluation of Advanced Semiconductor Materials by Electron Microscopy PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461305276
Total Pages : 413 pages
Book Rating : 4.4/5 (613 download)

DOWNLOAD NOW!


Book Synopsis Evaluation of Advanced Semiconductor Materials by Electron Microscopy by : David Cherns

Download or read book Evaluation of Advanced Semiconductor Materials by Electron Microscopy written by David Cherns and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last few years have ~een rapid improvements in semiconductor growth techniques which have produced an expanding range of high quality heterostructures for new semiconductor devises. As the dimensions of such structures approach the nanometer level, it becomes increasingly important to characterise materials properties such as composition uniformity, strain, interface sharpness and roughness and the nature of defects, as well as their influence on electrical and optical properties. Much of this information is being obtained by electron microscopy and this is also an area of rapid progress. There have been advances for thin film studies across a wide range of techniques, including, for example, convergent beam electron diffraction, X-ray and electron energy loss microanalysis and high spatial resolution cathodoluminescence as well as by conventional and high resolution methods. Important develop ments have also occurred in the study of surfaces and film growth phenomena by both microscopy and diffraction techniques. With these developments in mind, an application was made to the NATO Science Committee in late summer 1987 to fund an Advanced Research Work shop to review the electron microscopy of advanced semiconductors. This was subsequently accepted for the 1988 programme and became the "NATO Advanced Research Workshop on the Evaluation of Advanced Semiconductor Materials by Electron Microscopy". The Workshop took place in the pleasant and intimate surroundings of Wills Hall, Bristol, UK, during the week 11-17 September 1988 and was attended by fifty-five participants from fourteen countries.

Impact of Electron and Scanning Probe Microscopy on Materials Research

Download Impact of Electron and Scanning Probe Microscopy on Materials Research PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9401144516
Total Pages : 503 pages
Book Rating : 4.4/5 (11 download)

DOWNLOAD NOW!


Book Synopsis Impact of Electron and Scanning Probe Microscopy on Materials Research by : David G. Rickerby

Download or read book Impact of Electron and Scanning Probe Microscopy on Materials Research written by David G. Rickerby and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advanced Study Institute provided an opportunity for researchers in universities, industry and National and International Laboratories, from the disciplines ofmaterials science, physics, chemistry and engineering to meet together in an assessment of the impact of electron and scanning probe microscopy on advanced material research. Since these researchers have traditionally relied upon different approaches, due to their different scientific background, to advanced materials problem solving, presentations and discussion within the Institute sessions were initially devoted to developing a set ofmutually understood basic concepts, inherently related to different techniques ofcharacterization by microscopy and spectroscopy. Particular importance was placed on Electron Energy Loss Spectroscopy (EELS), Scanning Probe Microscopy (SPM), High Resolution Transmission and Scanning Electron Microscopy (HRTEM, HRSTEM) and Environmental Scanning Electron Microscopy (ESEM). It was recognized that the electronic structure derived directly from EELS analysis as well as from atomic positions in HRTEM or High Angle Annular Dark Field STEM can be used to understand the macroscopic behaviour of materials. The emphasis, however, was upon the analysis of the electronic band structure of grain boundaries, fundamental for the understanding of macroscopic quantities such as strength, cohesion, plasticity, etc.

Microscopy of Semiconducting Materials 2007

Download Microscopy of Semiconducting Materials 2007 PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1402086156
Total Pages : 504 pages
Book Rating : 4.4/5 (2 download)

DOWNLOAD NOW!


Book Synopsis Microscopy of Semiconducting Materials 2007 by : A.G. Cullis

Download or read book Microscopy of Semiconducting Materials 2007 written by A.G. Cullis and published by Springer Science & Business Media. This book was released on 2008-12-02 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains invited and contributed papers presented at the conference on ‘Microscopy of Semiconducting Materials’ held at the University of Cambridge on 2-5 April 2007. The event was organised under the auspices of the Electron Microscopy and Analysis Group of the Institute of Physics, the Royal Microscopical Society and the Materials Research Society. This international conference was the fifteenth in the series that focuses on the most recent world-wide advances in semiconductor studies carried out by all forms of microscopy and it attracted delegates from more than 20 countries. With the relentless evolution of advanced electronic devices into ever smaller nanoscale structures, the problem relating to the means by which device features can be visualised on this scale becomes more acute. This applies not only to the imaging of the general form of layers that may be present but also to the determination of composition and doping variations that are employed. In view of this scenario, the vital importance of transmission and scanning electron microscopy, together with X-ray and scanning probe approaches can immediately be seen. The conference featured developments in high resolution microscopy and nanoanalysis, including the exploitation of recently introduced aberration-corrected electron microscopes. All associated imaging and analytical techniques were demonstrated in studies including those of self-organised and quantum domain structures. Many analytical techniques based upon scanning probe microscopies were also much in evidence, together with more general applications of X-ray diffraction methods.

Advances in Imaging and Electron Physics

Download Advances in Imaging and Electron Physics PDF Online Free

Author :
Publisher : Academic Press
ISBN 13 : 0080961584
Total Pages : 439 pages
Book Rating : 4.0/5 (89 download)

DOWNLOAD NOW!


Book Synopsis Advances in Imaging and Electron Physics by :

Download or read book Advances in Imaging and Electron Physics written by and published by Academic Press. This book was released on 2009-11-05 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Imaging and Electron Physics merges two long-running serials--Advances in Electronics and Electron Physics and Advances in Optical and Electron Microscopy. This series features extended articles on the physics of electron devices (especially semiconductor devices), particle optics at high and low energies, microlithography, image science and digital image processing, electromagnetic wave propagation, electron microscopy, and the computing methods used in all these domains. This particular volume presents several timely articles on the scanning transmission electron microscope. Updated with contributions from leading international scholars and industry experts Discusses hot topic areas and presents current and future research trends Provides an invaluable reference and guide for physicists, engineers and mathematicians

Advanced Scanning Electron Microscopy and X-Ray Microanalysis

Download Advanced Scanning Electron Microscopy and X-Ray Microanalysis PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1475790279
Total Pages : 463 pages
Book Rating : 4.4/5 (757 download)

DOWNLOAD NOW!


Book Synopsis Advanced Scanning Electron Microscopy and X-Ray Microanalysis by : Patrick Echlin

Download or read book Advanced Scanning Electron Microscopy and X-Ray Microanalysis written by Patrick Echlin and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has its origins in the intensive short courses on scanning elec tron microscopy and x-ray microanalysis which have been taught annually at Lehigh University since 1972. In order to provide a textbook containing the materials presented in the original course, the lecturers collaborated to write the book Practical Scanning Electron Microscopy (PSEM), which was published by Plenum Press in 1975. The course con tinued to evolve and expand in the ensuing years, until the volume of material to be covered necessitated the development of separate intro ductory and advanced courses. In 1981 the lecturers undertook the project of rewriting the original textbook, producing the volume Scan ning Electron Microscopy and X-Ray Microanalysis (SEMXM). This vol ume contained substantial expansions of the treatment of such basic material as electron optics, image formation, energy-dispersive x-ray spectrometry, and qualitative and quantitative analysis. At the same time, a number of chapters, which had been included in the PSEM vol ume, including those on magnetic contrast and electron channeling con trast, had to be dropped for reasons of space. Moreover, these topics had naturally evolved into the basis of the advanced course. In addition, the evolution of the SEM and microanalysis fields had resulted in the devel opment of new topics, such as digital image processing, which by their nature became topics in the advanced course.

Microscopy of Semiconducting Materials 1987, Proceedings of the Institute of Physics Conference, Oxford University, April 1987

Download Microscopy of Semiconducting Materials 1987, Proceedings of the Institute of Physics Conference, Oxford University, April 1987 PDF Online Free

Author :
Publisher : CRC Press
ISBN 13 : 1000112209
Total Pages : 819 pages
Book Rating : 4.0/5 (1 download)

DOWNLOAD NOW!


Book Synopsis Microscopy of Semiconducting Materials 1987, Proceedings of the Institute of Physics Conference, Oxford University, April 1987 by : A.G. Cullis

Download or read book Microscopy of Semiconducting Materials 1987, Proceedings of the Institute of Physics Conference, Oxford University, April 1987 written by A.G. Cullis and published by CRC Press. This book was released on 2021-01-31 with total page 819 pages. Available in PDF, EPUB and Kindle. Book excerpt: The various forms of microscopy and related microanalytical techniques are making unique contributions to semiconductor research and development that underpin many important areas of microelectronics technology. Microscopy of Semiconducting Materials 1987 highlights the progress that is being made in semiconductor microscopy, primarily in electron probe methods as well as in light optical and ion scattering techniques. The book covers the state of the art, with sections on high resolution microscopy, epitaxial layers, quantum wells and superlattices, bulk gallium arsenide and other compounds, properties of dislocations, device silicon and dielectric structures, silicides and contacts, device testing, x-ray techniques, microanalysis, and advanced scanning microscopy techniques. Contributed by numerous international experts, this volume will be an indispensable guide to recent developments in semiconductor microscopy for all those who work in the field of semiconducting materials and research development.

Scanning Transmission Electron Microscopy

Download Scanning Transmission Electron Microscopy PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 9781441971999
Total Pages : 762 pages
Book Rating : 4.9/5 (719 download)

DOWNLOAD NOW!


Book Synopsis Scanning Transmission Electron Microscopy by : Stephen J. Pennycook

Download or read book Scanning Transmission Electron Microscopy written by Stephen J. Pennycook and published by Springer. This book was released on 2011-03-22 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning transmission electron microscopy has become a mainstream technique for imaging and analysis at atomic resolution and sensitivity, and the authors of this book are widely credited with bringing the field to its present popularity. Scanning Transmission Electron Microscopy(STEM): Imaging and Analysis will provide a comprehensive explanation of the theory and practice of STEM from introductory to advanced levels, covering the instrument, image formation and scattering theory, and definition and measurement of resolution for both imaging and analysis. The authors will present examples of the use of combined imaging and spectroscopy for solving materials problems in a variety of fields, including condensed matter physics, materials science, catalysis, biology, and nanoscience. Therefore this will be a comprehensive reference for those working in applied fields wishing to use the technique, for graduate students learning microscopy for the first time, and for specialists in other fields of microscopy.

Comprehensive Semiconductor Science and Technology

Download Comprehensive Semiconductor Science and Technology PDF Online Free

Author :
Publisher : Newnes
ISBN 13 : 0080932282
Total Pages : 3572 pages
Book Rating : 4.0/5 (89 download)

DOWNLOAD NOW!


Book Synopsis Comprehensive Semiconductor Science and Technology by :

Download or read book Comprehensive Semiconductor Science and Technology written by and published by Newnes. This book was released on 2011-01-28 with total page 3572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductors are at the heart of modern living. Almost everything we do, be it work, travel, communication, or entertainment, all depend on some feature of semiconductor technology. Comprehensive Semiconductor Science and Technology, Six Volume Set captures the breadth of this important field, and presents it in a single source to the large audience who study, make, and exploit semiconductors. Previous attempts at this achievement have been abbreviated, and have omitted important topics. Written and Edited by a truly international team of experts, this work delivers an objective yet cohesive global review of the semiconductor world. The work is divided into three sections. The first section is concerned with the fundamental physics of semiconductors, showing how the electronic features and the lattice dynamics change drastically when systems vary from bulk to a low-dimensional structure and further to a nanometer size. Throughout this section there is an emphasis on the full understanding of the underlying physics. The second section deals largely with the transformation of the conceptual framework of solid state physics into devices and systems which require the growth of extremely high purity, nearly defect-free bulk and epitaxial materials. The last section is devoted to exploitation of the knowledge described in the previous sections to highlight the spectrum of devices we see all around us. Provides a comprehensive global picture of the semiconductor world Each of the work's three sections presents a complete description of one aspect of the whole Written and Edited by a truly international team of experts

Scanning Electron Microscopy

Download Scanning Electron Microscopy PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 3662135620
Total Pages : 476 pages
Book Rating : 4.6/5 (621 download)

DOWNLOAD NOW!


Book Synopsis Scanning Electron Microscopy by : Ludwig Reimer

Download or read book Scanning Electron Microscopy written by Ludwig Reimer and published by Springer. This book was released on 2013-11-11 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to outline the physics of image formation, electron specimen interactions, imaging modes, the interpretation of micrographs and the use of quantitative modes "in scanning electron microscopy (SEM). lt forms a counterpart to Transmission Electron Microscopy (Vol. 36 of this Springer Series in Optical Sciences) . The book evolved from lectures delivered at the University of Münster and from a German text entitled Raster-Elektronenmikroskopie (Springer-Verlag), published in collaboration with my colleague Gerhard Pfefferkorn. In the introductory chapter, the principles of the SEM and of electron specimen interactions are described, the most important imaging modes and their associated contrast are summarized, and general aspects of eiemental analysis by x-ray and Auger electron emission are discussed. The electron gun and electron optics are discussed in Chap. 2 in order to show how an electron probe of small diameter can be formed, how the elec tron beam can be blanked at high frequencies for time-resolving exper iments and what problems have tobe taken into account when focusing.

In Situ Scanning Electron Microscopy in Materials Research

Download In Situ Scanning Electron Microscopy in Materials Research PDF Online Free

Author :
Publisher : Wiley-VCH
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!


Book Synopsis In Situ Scanning Electron Microscopy in Materials Research by : Klaus Wetzig

Download or read book In Situ Scanning Electron Microscopy in Materials Research written by Klaus Wetzig and published by Wiley-VCH. This book was released on 1995-05-09 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors of this book give an instructive survey of the latest advancements in Scanning Electron Microscopy (SEM). During the last two decades there has been a new stage in the development of scanning electron microscopes as they are equipped with special devices for in situ investigations. Thus a "microlab" now exists inside the electron microscope. Different in situ sample treatments, based on mechanical, thermal and electrical effects, as well as on surface modification by radiation and environmental interaction processes, can be used to quantitatively study reactions at solid surfaces under well-defined external conditions. The objects under investigation can be of many kinds: engineering materials, electrical and magnetic materials (as used in microelectronics), products of technical and chemical industries, minerals, forensic objects, textiles, pharmaceutical, biological and archaeological specimens.

Scanning Transmission Electron Microscopy

Download Scanning Transmission Electron Microscopy PDF Online Free

Author :
Publisher : CRC Press
ISBN 13 : 0429516169
Total Pages : 162 pages
Book Rating : 4.4/5 (295 download)

DOWNLOAD NOW!


Book Synopsis Scanning Transmission Electron Microscopy by : Alina Bruma

Download or read book Scanning Transmission Electron Microscopy written by Alina Bruma and published by CRC Press. This book was released on 2020-12-22 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning Transmission Electron Microscopy: Advanced Characterization Methods for Materials Science Applications The information comprised in this book is focused on discussing the latest approaches in the recording of high-fidelity quantitative annular dark-field (ADF) data. It showcases the application of machine learning in electron microscopy and the latest advancements in image processing and data interpretation for materials notoriously difficult to analyze using scanning transmission electron microscopy (STEM). It also highlights strategies to record and interpret large electron diffraction datasets for the analysis of nanostructures. This book: Discusses existing approaches for experimental design in the recording of high-fidelity quantitative ADF data Presents the most common types of scintillator-photomultiplier ADF detectors, along with their strengths and weaknesses. Proposes strategies to minimize the introduction of errors from these detectors and avenues for dealing with residual errors Discusses the practice of reliable multiframe imaging, along with the benefits and new experimental opportunities it presents in electron dose or dose-rate management Focuses on supervised and unsupervised machine learning for electron microscopy Discusses open data formats, community-driven software, and data repositories Proposes methods to process information at both global and local scales, and discusses avenues to improve the storage, transfer, analysis, and interpretation of multidimensional datasets Provides the spectrum of possibilities to study materials at the resolution limit by means of new developments in instrumentation Recommends methods for quantitative structural characterization of sensitive nanomaterials using electron diffraction techniques and describes strategies to collect electron diffraction patterns for such materials This book helps academics, researchers, and industry professionals in materials science, chemistry, physics, and related fields to understand and apply computer-science–derived analysis methods to solve problems regarding data analysis and interpretation of materials properties.

Publications of the National Institute of Standards and Technology ... Catalog

Download Publications of the National Institute of Standards and Technology ... Catalog PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 1162 pages
Book Rating : 4.3/5 (243 download)

DOWNLOAD NOW!


Book Synopsis Publications of the National Institute of Standards and Technology ... Catalog by : National Institute of Standards and Technology (U.S.)

Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1994 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Microscopy of Semiconducting Materials 2001

Download Microscopy of Semiconducting Materials 2001 PDF Online Free

Author :
Publisher : CRC Press
ISBN 13 : 1351091522
Total Pages : 1313 pages
Book Rating : 4.3/5 (51 download)

DOWNLOAD NOW!


Book Synopsis Microscopy of Semiconducting Materials 2001 by : A.G. Cullis

Download or read book Microscopy of Semiconducting Materials 2001 written by A.G. Cullis and published by CRC Press. This book was released on 2018-01-18 with total page 1313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Institute of Physics Conference Series is a leading International medium for the rapid publication of proceedings of major conferences and symposia reviewing new developments in physics and related areas. Volumes in the series comprise original refereed papers and are regarded as standard referee works. As such, they are an essential part of major libration collections worldwide. The twelfth conference on the Microscopy of Semiconducting Materials (MSM) was held at the University of Oxford, 25-29 March 2001. MSM conferences focus on recent international advances in semiconductor studies carried out by all forms of microscopy. The event was organized with scientific sponsorship by the Royal Microscopical Society, The Electron Microscopy and Analysis Group of the Institute of Physics and the Materials Research Society. With the continual shrinking of electronic device dimensions and accompanying enhancement in device performance, the understanding of semiconductor microscopic properties at the nanoscale (and even at the atomic scale) is increasingly critical for further progress to be achieved. This conference proceedings provides an overview of the latest instrumentation, analysis techniques and state-of-the-art advances in semiconducting materials science for solid state physicists, chemists, and materials scientists.

Transmission Electron Microscopy of Semiconductor Nanostructures

Download Transmission Electron Microscopy of Semiconductor Nanostructures PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 3540364072
Total Pages : 238 pages
Book Rating : 4.5/5 (43 download)

DOWNLOAD NOW!


Book Synopsis Transmission Electron Microscopy of Semiconductor Nanostructures by : Andreas Rosenauer

Download or read book Transmission Electron Microscopy of Semiconductor Nanostructures written by Andreas Rosenauer and published by Springer. This book was released on 2003-07-03 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides tools well suited for the quantitative investigation of semiconductor electron microscopy. These tools allow for the accurate determination of the composition of ternary semiconductor nanostructures with a spatial resolution at near atomic scales. The book focuses on new methods including strain state analysis as well as evaluation of the composition via the lattice fringe analysis (CELFA) technique. The basics of these procedures as well as their advantages, drawbacks and sources of error are all discussed. The techniques are applied to quantum wells and dots in order to give insight into kinetic growth effects such as segregation and migration. In the first part of the book the fundamentals of transmission electron microscopy are provided. These are needed for an understanding of the digital image analysis techniques described in the second part of the book. There the reader will find information on different methods of composition determination. The third part of the book focuses on applications such as composition determination in InGaAs Stranski--Krastanov quantum dots. Finally it is shown how an improvement in the precision of the composition evaluation can be obtained by combining CELFA with electron holography. This is demonstrated for an AlAs/GaAs superlattice.

Practical Scanning Electron Microscopy

Download Practical Scanning Electron Microscopy PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461344220
Total Pages : 598 pages
Book Rating : 4.4/5 (613 download)

DOWNLOAD NOW!


Book Synopsis Practical Scanning Electron Microscopy by : Joseph Goldstein

Download or read book Practical Scanning Electron Microscopy written by Joseph Goldstein and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the spring of 1963, a well-known research institute made a market survey to assess how many scanning electron microscopes might be sold in the United States. They predicted that three to five might be sold in the first year a commercial SEM was available, and that ten instruments would saturate the marketplace. In 1964, the Cambridge Instruments Stereoscan was introduced into the United States and, in the following decade, over 1200 scanning electron microscopes were sold in the U. S. alone, representing an investment conservatively estimated at $50,000- $100,000 each. Why were the market surveyers wrongil Perhaps because they asked the wrong persons, such as electron microscopists who were using the highly developed transmission electron microscopes of the day, with resolutions from 5-10 A. These scientists could see little application for a microscope that was useful for looking at surfaces with a resolution of only (then) about 200 A. Since that time, many scientists have learned to appreciate that information content in an image may be of more importance than resolution per se. The SEM, with its large depth of field and easily that often require little or no sample prepara interpreted images of samples tion for viewing, is capable of providing significant information about rough samples at magnifications ranging from 50 X to 100,000 X. This range overlaps considerably with the light microscope at the low end, and with the electron microscope at the high end.