RE: [IBIS-Users] Max and min condition simulations

Hello, Lee,

1) Your statements are correct. Worse yet, both of these are specified as
LUMPED circuit parameters in the IBIS spec.  A better alternative is to
create a package model for each corner.

2) This depends on the simulator.  You could try changing one C_comp and see
which corner's simulation result changes.  In some tools, such as
SpecctraQuest, you can specify which C_comp to use for each corner analysis.

Best regards,
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@mindspring.com


-----Original Message-----
From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] On Behalf
Of lee yang
Sent: Tuesday, March 15, 2005 6:06 AM
To: ibis-users@eda.org
Subject: [IBIS-Users] Max and min condition simulations

Hi all,

1) In the IBIS file, the R_pin, L_pin and C_pin are  not divided into typ, 
min and max, does this mean that regardless of the simulation conditions 
(min, typ or max), the same R_pin, L_pin and C_pin are used? In practical, 
woudn't these values are changing at different conditions?

2) Which C_comp value among min, typ and max will be selected by simulator 
to do the max (fast)condition simulation? is it the smallest C_comp is used?

How about the package RLC?

Many thanks.

-Lee



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