PCB-Design: Eagle Library

by: DCEM

Prefix: Wikipedia: Reference designator

Polygon: use Rank to draw polygons into each ohter

Thermal Pads: Use thermal symbol connected to GND request level swap use one SMD Pad (TP0) for the surface area use as much Pads (TP1 - TPX) as needed for heat transfer

qfn packages (or othes small pitch packages) : use smd pads with roundness 100% (round edges are better for solder paste release)

Additional Information regarding PCB-Design. This is a work in progress and will hopefully be updated. by: DCEM

Description:

<h1>PART_NAME</h1>
SHORT_DESCRIPTION
<h2>Links</h2>
<ul>
   <li>
      <a href="HTTPS_LINK">Datasheet</a><br>
   </li>
   <li>
      <a href="HTTPS_LINK">Product website</a><br>
   </li>
</ul>

Device

Prefix: Wikipedia: Reference designator

Value: Turn off if the Device does not have a Value

Keepout

OC_MOUSER

Silk Screen

PCB-Pool: (t/b)Place and (t/b)Names will be printed

minimum font size: 0,6mm (acceptable readability) - 0,8mm (good readability)

keywords: land pattern, footprint

Eagle Settings

%Appdata%\Cadsoft\Eagle\eaglerc.usr:

Brd.CommandPopup.Display.1 = "DEF_TOP_BOTTOM;none 1 16 17 18 19 20 21 22 23 24 45 51 52"
Brd.CommandPopup.Display.2 = "DEF_TOP;none 1 17 18 19 20 21 23 45 51"
Brd.CommandPopup.Display.3 = "DEF_BOTTOM;none 16 17 18 19 20 22 24 45 52"
Brd.CommandPopup.Display.4 = "SILK_TOP;none 1 17 18 19 20 21 23 25 29 45"
Brd.CommandPopup.Display.5 = "SILK_BOTTOM;none 16 17 18 19 20 22 24 26 30 45"
Brd.CommandPopup.Display.6 = "STOP_TOP;none 1 17 18 19 20 23 29 45"
Brd.CommandPopup.Display.7 = "STOP_BOTTOM;none 16 17 18 19 20 24 30 45"
Brd.CommandPopup.Display.8 = "MIDDLE_2_15;none 2 15 17 18 19 20 45"

Sch.WhiteBackground = "1"
Interface.VectorFont = "1"

$EAGLEDIR/scr

BRD:
change diameter auto;
change drill 0.3mm;
change shape round;
change font vector;

PAC:
grid mm 1 lines on alt mm 0.1;
change Width 0.2mm;
change Size 0.032in;

Dangerous Stuff

It is possible to edit Eagle Files directly since they are xml files.

Change font on layers 25, 26, 37 and 28 to vector

Regex replace: (<text.*)layer="(2[5-8])">

with: ${1}layer="${2}" font="vector">

Change font size on layers 25, 26, 27 and 28 (0.6096 --> 0.8128)

Regex replace: (<text.*size=")0.6096(" layer=")(2[5-8])

with: ${1}0.8128${2}${3}