Using components to jump traces - rules?

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chico

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I have seen many designs which use components to jump over top of traces (especially 1 sided board designs which makes sense).
I was wondering if there is anything specific that I should look out for when doing this, I assume if I am routing a board then as long as I meet my clearance specs I'll be ok.

Are there any types of signals i shouldnt route under components, or components that shouldnt be over top of a signal trace.

ie/ maybe i shouldn't run a PWM signal over top of another PWM signal.
 
One basic rule is to separate digital from analogue...Nothing under or around a crystal...Care around the gate of a mosfet... There are places on the internet that comment on design rules... One good thing is, it is being designed into routing software nowadays...

Oh yeah one last thing BIG ground traces as short as possible..
 
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hi,
This pdf covers most points.

EDIT:
Deleted and reloaded for test
 
Last edited:
Ian Rogers said:
Eric! that link doesn't seem to work..
Click to expand...

hi Ian,
Thats the 2nd pdf [ thats be posted before OK ] that now dosnt work.???

EDIT:
Just deleted the pdf and re uploaded, still dosnt work! will let EM know.
 
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