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Circuit Board Traces: Why not 90 Degrees [message #77] Wed, 20 September 2006 23:01
kc2nda is currently offline  kc2nda
Messages: 44
Registered: December 2004
Location: New Paltz
Why isn't is a good idea to have 90 degree traces on your circuit?

Well, after some research, these are some of the answers found:

1. To reduce noise that will occur on smaller, thinner lines (EMF)

2. Sharp bends at 90 degrees have more inductance.
- Every wire is an inductor
- The reason you need decoupleing caps near IC's is just a few inchs of straight wire causes enough inductance to result in a sag
- Two 45 degree turns have less inductance then a 90 degree turn

If anyone can add to this, please do!
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