[SI-LIST] Re: Propagation delay on embedded microstrip

Bipin-

One could also try one of the "freeware" tools that calculate Z0, Td, v,
etc.

Links to these tools can be found on the IBIS Tools page.
http://www.eigroup.org/ibis/tools.htm

- Lynne


"IBIS training when you need it, where you need it."

Dr. Lynne Green
Green Streak Programs
http://www.greenstreakprograms.com
425-788-0412
lgreen22@xxxxxxxxxxxxxx


-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Bipin Dhavale
Sent: Wednesday, September 29, 2004 3:13 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Propagation delay on embedded microstrip

Hi Everyone,

In the stackup shown below what propagation delay should I consider 
in Signal Layer S1 ?

---------------Top (Signal)
---------------S1(Signal)
---------------Plane(Pwr or gnd)

Thickness between Top to S1 is equal to S1 to Plane
What would be the best assumption ?

a] Microstrip
b] Close to microstrip
c] Stripline
d] Close to stripline
e] Inbetween stripline & microstrip

Also If i consider S1 layer as deeply embedded (S1 to Plane >>> Top 
to S1) Can I 
safely consider propagation delays in layer S1 as close to stripline ?

Thank you,
Bipin



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