There are three freeware utilities that can be downloaded from this link:
http://www.ultracad.com/articles.htm <http://www.ultracad.com/articles.htm>

The one called ULTRACLC will calculate capacitance for stripline and
microstrip, which
might point you in the right direction (although not EXACTLY what you asked
for)

Good Luck (and let us know if you find another one)

Jack

-----Original Message-----
From: Craig Elison [mailto:[log in to unmask]]
Sent: Friday, September 15, 2000 6:36 AM
Subject: Trace to Trace capacitance


Can anyone give me a formula for calculating trace to trace capacitance
given trace width and pitch?


Craig
Lead Design Engineer
TRI-C Design