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PCB Design Rules

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PCB Design Rules

Properly designing your circuit board can help reduce your manufacturing cost. Many times designers used unnecessary tight tolerances that drive up the cost of their circuit boards. Below are design rule guidelines that will help you stay within our tolerances. This will help save unnecessary redesign and manufacturing costs.

Printable PDF

Tolerances Standard Premium
Drill to copper feature .009 007
Aspect Rati 8:1 10:1
Annular ring over drill
– inner layer .005 .003
– outer layer .005 .003
Clearance pad over drill .020 .016
Copper feature to edge .010 .005
True position drill .002 .0015
True position of artwork .003 .002
Route +/-.005 +/-.002
Thickness (minimum +/-.003) +/-10% +/-8%
Etch tolerance .001 .0007
Impedance 10% 5%
Soldermask thickness (LPI) .0005-.0007
Minimum silkscreen feature .008 .006
Minimum character size legend .050X.050 .040X.040
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Power Design Services
121 E. Brokaw Road
San Jose, CA 95112
408-437-1931
info@PowerDesignServices.com

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