Kraig Mitzner - Complete PCB Design Using OrCAD Capture and PCB Editor

1. Tables in Chapter 1
2. Tables in Chapter 4
3. Tables in Chapter 5
4. Tables in Chapter 6
5. Tables in Chapter 7
6. Tables in Chapter 8
7. Tables in Chapter 9
8. Tables in Chapter 10
9. Tables in Appendix B
10. Tables in Appendix D

1. Figures in Chapter 1
2. Figures in Chapter 2
3. Figures in Chapter 3
4. Figures in Chapter 4
5. Figures in Chapter 5
6. Figures in Chapter 6
7. Figures in Chapter 7
8. Figures in Chapter 8
9. Figures in Chapter 9
10. Figures in Chapter 10
11. Figures in Chapter 11
12. Figures in Chapter 12

Second Edition

Kraig Mitzner

Independent Consultant, Washington, United States

BOB DOE

Parallel Systems Ltd, Bracknell, United Kingdom

Alexander Akulin

Co-founder of PCB Soft Ltd., PCB Technology, Moscow, Russia

Anton Suponin

PCB Soft, Moscow, Russia

Dirk Mller

FlowCAD, Feldkirchen, Germany

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The authors would like to thank Cadence for the use of the software and the technical assistance during the development of this book.

The authors would also like to thank their families and friends for their support and encouragement without which this book would not have been completed.

And last, but not the least, a hearty thank you goes to the readers of the first book. Your enthusiasm and feedback provided the motivation to create the second edition of this book.

The OrCAD PCB design solutions provide a comprehensive suite of tools for design entry, using OrCAD Capture, mixed-signal circuit simulation using OrCAD PSpice, and physical layout using OrCAD PCB Editor for mainstream electronic circuit designs.

OrCAD PCB Editor is based on Allegro PCB Editor, so this book will be useful to new Allegro PCB Editor users as well. Allegro PCB Editor is a powerful, full-featured design tool. While OrCAD PCB Editor has inherited many of those features, including a common file format, it does not possess all of the capabilities available to the Allegro PCB tiers, such as Allegro High-Speed Option, Analog/RF Option, FPGA System Planner, Design Planning, and Miniaturization Option. Consequently most of the basic tools and features are described here, but only a few of the more-advanced tools are covered, as outlined later.

, Introduction to printed circuit board design and computer-aided design, introduces the reader to the basics of printed circuit board (PCB) design. The chapter begins by introducing the concepts of computer-aided engineering, computer-aided design (CAD), and computer-aided manufacturing. The chapter then explains how these tools are used to design and manufacture multilayer PCBs. Many 3D pictures are used to show the construction of PCBs. Topics such as PCB cores and layer stack-up, apertures, D-codes, photolithography, layer registration, plated through holes, and Gerber files are explained.

, Project structures and the PCB Editor tool set.

, Introduction to the printed circuit board design flow by example. Gerber files are also explained in detail.

, Introduction to industry standards, introduces some of the industry standards organizations related to the design and fabrication of PCBs (e.g., IPC and JEDEC). PCB performance classes and producibility levels are also described, along with the basic ideas behind standard fabrication allowances. These concepts are described here to help the reader realize some of the fabrication issues up front to help minimize board failures and identify some of the guides and standards resources that are available for PCB design.

, Introduction to design for manufacturing, addresses the mechanical aspect of PCB designdesign for manufacturability. The chapter explains where parts should be placed on the board, how far apart, and in what orientation from a manufacturing perspective. OrCAD PCB Editors design rule checker is then considered relative to the manufacturing concepts and IPCs courtyard concepts. To aid in understanding the design issues, manufacturing processes such as reflow and wave soldering, pick-and-place assembly, and thermal management are discussed. The information is then used as a guide in designing plated through holes, surface-mount lands, and PCB Editor footprints in general. Tables summarize the information and serve as a design guide during footprint design and PCB layout.