PCB Design Tutorial AlternateZone（PCB设计教程AlternateZone）.pdf

PCB Design Tutorial by David L. Jones Email: david AT alternatezone DOT com Revision A - June 29th 2004 The latest version of this tutorial can be found through Freely distributable for educational and personal use. Copyright© 2004 David L. Jones PCB Design Tutorial by David L. Jones Introduction 3 The Old Days 3 PCB Packages 3 Standards 3 The Schematic 4 Imperial and Metric 4 Working to Grids 5 Working from the top 6 Tracks 6 Pads 7 Vias 8 Polygons 8 Clearances 8 Component Placement Design 9 Basic Routing 11 Finishing Touches 13 Single Sided Design 13 Double Sided Design 14 Other Layers 14 Silkscreen 14 Solder Mask 14 Mechanical Layer 15 Keepout 15 Layer Alignment 15 Netlists 15 Rats Nest 16 Design Rule Checking 16 Forward and Back Annotation 17 Multi layer Design 17 Power Planes 18 Good Grounding 19 Good Bypassing 19 High Frequency Design Techniques 19 Double Sided Loading 20 Auto Routing 20 Auto Placement 21 Design For Manufacturing 21 Panelisation 21 Tooling Strips 21 Fiducial Marks 22 Thermal Relief 22 Soldering 22 Basic PCB Manufacture 23 Surface Finishies 24 Electrical Testing 24 Signature 24 Submitting your design for manufacture 25 Page 2 of 25 2 PCB Design Tutorial by David L. Jones Introduction Youve designed your circuit, perhaps even bread boarded a working prototype, and now its time to turn it into a nice Printed Circuit Board (PCB) design. For some designers, the PCB design will be a natural and easy extension of the design process. But for many others the pr