[SI-LIST] In EBD model?

  • From: "Inmyung Song" <imsong@xxxxxxxxxxxxxx>
  • To: "Signal Integrity Mail Group" <si-list@xxxxxxxxxxxxx>
  • Date: Mon, 16 Jul 2001 14:37:18 +0900

Good morning everyone.

In EBD model, the keyword Len is the length of pattern, right?

This IBIS is generated.


[Path Description] /XUPCBD(0)
Pin A6
Len = 0.0414555 L = 2.47486e-007 C = 2.11203e-010 R = 2.56347 /
Len = 0.011303 L = 2.37766e-007 C = 2.5134e-010 R = 2.56347 /
Len = 0.000898026 L = 2.47486e-007 C = 2.11203e-010 R = 2.56347 /
Len = 0.0035921 L = 2.41418e-007 C = 2.57775e-010 R = 2.56347 /
Len = 0.0237123 L = 2.47486e-007 C = 2.11203e-010 R = 2.56347 /
Len = 0 L = 6.03614e-010 C = 2.08724e-013 /
Len = 0 L = 6.03614e-010 C = 2.08724e-013 /
Len = 0.00450031 L = 3.07164e-007 C = 1.22917e-010 R = 5.12693 /
Node U2.54

1. The pattern connected with A6 is routed only Comp and Sold, why the Len is 
multiple?
 What does it mean?

2. Len = 0, is Via here, right?(The pattern connected with A6 has no discrete 
component)

3. L, C, R's dimension is what? nH/inch, pF/inch, ohms/inch? or nH/mm, pF/mm, 
ohms/mm?

Any comment is helpful to me.

Thank you for your reading.

Inmyung.

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