gEDA-user: PCB layout design patterns

[Saritha Kalyanam <kalyanamsaritha@xxxxxxxxx>]

   Just as there are design patterns to solve common software engineering
   problems:
   [1]http://en.wikipedia.org/wiki/Design_patterns
   Does it make sense to come up with design patterns for common layout
   problems?
   For example,
   1) how does one commonly layout data/address lines between a PQFP/BGA
   cpu and SDRAM(TSOP)?
   2) how to layout differential traces if they must cross each other
       - drive vias and make cross on the solder side
       - (OR) on component-side, one trace exits the pin directly, while
   the other loops around first pin (inside the footprint area) and
   exits.
   3) escape routing for BGA?
   Pros:
   1) No need to re-invent the wheel
   2) Novices can learn/lookup solutions faster
   Cons:
   1) Every layout problem is different!
   2) There are already a extensive set of guidelines, so they should
   suffice

References

   1. http://en.wikipedia.org/wiki/Design_patterns


_______________________________________________
geda-user mailing list
geda-user@xxxxxxxxxxxxxx
http://www.seul.org/cgi-bin/mailman/listinfo/geda-user