Re: How to determine per length RLC in a board

Yaping,

In both cases, the characteristic impedance and per length RLC are independent
of switching direction.

Thanks,
Vinu

Yaping Zhou wrote:

> Hi, All:
>
> If the stackup in a board is a symmetric stripline structure (GND-SIG-PWR),
> the characteristic impedance is the same for switching high and low, and the
> per length RLC are also the same for both switching cases.
>
> How to determine the per length RLC in a board with a stackup like
> SIG-GND-PWR? The characteristic impedance and per length RLC are
> switching-dependent, but there is no way to put two values for each trace in
> an ebd file.
>
> Intel uses ebd to describe packages used for Pentium processors,I have the
> same question there on the way to determine RLC values.
>
> Your help is appreciated.
>
> Thanks,
>
> --
> **************************************
> Yaping Zhou (r3aadv)
> (512) 933-5803
> Motorola Semiconductor Products Sector
> Final Manufacturing Technology Center
> Ed Bluestein, Austin, Texas
> **************************************

 
Received on Tue Jun 5 10:10:08 2001