PCB Design Tutorial TARGET 3001!（PCB设计教程目标3001 !）.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 fo und through Freely distributable for educational and personal use. Copyright© 2004 David L. Jones PC Design Tutorial by David L. Jones Introduction4 The Old Days4 PC Packages4 Standards4 The Schematic5 Imperial and Metric5 Working to Grids6 Working from the top7 Tracks7 Pads8 Vias8 Polygons8 Clearances9 Component Placement Design10 asic Routing12 Finishing Touches14 Single Sided Design14 Double Sided Design15 Other Layers15 Silkscreen15 Solder Mask15 Mechanical Layer16 Keepout16 Layer Alignment 16 Netlists16 Rats Nest16 Design Rule Checking17 Forward and ack Annotation17 Multi layer Design17 Power Planes18 Good Grounding20 Good ypassing20 High Frequency Design Techniques20 Double Sided Loading21 Auto Routing 21 Auto Placement22 Design For Manufacturing22 Panelisation 22 Tooling Strips22 Fiducial Marks22 Thermal Relief23 Soldering23 asic PC Manufacture24 Page 2 of 26 2 PC Design Tutorial by David L. Jones Surface Finishies25 Electrical Testing25 Signature25 Submitting your design for manufacture26 Page 3 of 26 3 PC Design Tutorial by David L. Jones Introduction Youve designed your circuit, perhaps even read boarded a working prototype, and now its time