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Complete PCB Design Using OrCad Capture and Layout By Kraig Mitzner Amsterdam · Boston · Heidelberg · London New York · Oxford · Paris · San Diego San Francisco · Singapore · Sydney · Tokyo Newnes is an imprint of Elsevier This eBook does not include ancillary media that was packaged with the printed version of the book. Newnes is an imprint of Elsevier 30 Corporate Drive, Suite 400, Burlington, MA 01803, USA Linacre House, Jordan Hill, Oxford OX2 8DP, UK Copyright © 2007, Elsevier Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Permissions may be sought directly from Elsevier's Science & Technology Rights Department in Oxford, UK: phone: ( 44) 1865 843830, fax: ( 44) 1865 853333, e-mail: [email protected]. You may also complete your request on-line via the Elsevier homepage (http://elsevier.com), by selecting "Customer Support" and then "Obtaining Permissions." Recognizing the importance of preserving what has been written, Elsevier prints its books on acid-free paper whenever possible. Library of Congress Cataloging-in-Publication Data Mitzner, Kraig. Complete PCB design using OrCad capture and layout / Kraig Mitzner. p. cm. Includes bibliographical references and index. ISBN-13: 978-0-7506-8214-5 (pbk. : alk. paper) ISBN-10: 0-7506-8214-0 (pbk. : alk. paper) 1. Printed circuits--Design and construction. 2. OrCAD SDT. I. Title. TK7868.P7.M56 2007 621.3815'31--dc22 2006034059 British Library Cataloguing-in-Publication Data A catalogue record for this book is available from the British Library. ISBN-13: 978-0-7506-8214-5 ISBN-10: 0-7506-8214-0 For information on all Newnes publications visit our Web site at www.books.elsevier.com Typeset by Charon Tec Ltd (A Macmillan Company), Chennai, India www.charontec.com Printed in China. 07 08 09 10 10 9 8 7 6 5 4 3 2 1 Table of Contents INTRODUCTION XV ACKNOWLEDGMENTS XIX CHAPTER 1 INTRODUCTION TO PCB DESIGN AND CAD ... 1 Computer-Aided Design and the OrCAD Design Suite ...1 Printed Circuit Board Fabrication ...2 PCB cores and layer stack-up ...2 PCB fabrication process ...4 Photolithography and chemical etching ...5 Mechanical milling ...8 Layer registration...9 Function of OrCAD Layout in the PCB Design Process ...11 Design Files Created by Layout...