[SI-LIST] Propagation delay on embedded microstrip

  • From: "Bipin Dhavale" <bipindhavale@xxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Wed, 29 Sep 2004 10:13:23 -0000

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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