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