User Guide

Table Of Contents
(1+(2*3)+16)
Onbothsidesofthecorecopperlayersarepressedonwithprepregs.
Theouterparenthesisdefinecontinuousviasfrom1-16.
[2:(1+(2*3)+16)]
Insquarebracketsandseparatedbyacolonblindviasaredefined.
Herefromlayer1to2.
The following image shows the related setup expression in the Layers
taboftheDesignRules.
Example1:LayerSetupfora4-LayerBoard
Blind vias have to keep a certain ratio of via depth to drill diameter. For
thisreasonitisnecessarytospecifyvaluesforthe layerthickness.
These values are given by your boardhouse! You are supposed to contact
itineithercasebeforestartingthelayout!
Type in the values in the Copper (thickness of copper layer) and Isola
-
tion (thicknessofisolationlayer)fieldsasshownintheimage.
Example2:
Layers1,2,3,and16areused.
Boardstructure:Onecoreinside,outsideprepregs.
Connections:1-2,3-16(blindvias),1-16(throughvias)
Setupexpression:
[2:(1+2*3+16):3]
Explanation:
2*3
Layers2and3formthecore.
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EAGLEManual