[sdiy] Trace width and via diameter/hole size

[Bert Schiettecatte]

Hi Harry,

> If you have special needs, contact me offlist.  For the most 
> part, power traces for s-diy can be .040 - .050" with no 
> measurable temperature rise.  I use .020 - .025" for signals. 
>  I nick down to .015 to go between resistors or IC pins.

I'm using approx. 12 mils for power traces and 8 mils for 
signals. According to the ULP's in eagle the 12 mil trace 
Should be able to handle close to 1A? Is my 12 mils for 
Power to narrow? The highest current in the system will 
Be around 890mA. 

> Vias usually have better current carrying capacity than runs. 
> The whole inner barrel is copper plated.

Mm... The pcb fab I'm using in Belgium seemed to have a choice
Between filling vias and not filling them.. So I should ask 
Them to fill them? Last time my board arrived it didn't have 
The vias filled. 

Thanks !
bert