[SI-LIST] Re: selection of Tx line models depending on frequency

Elen,

Silvaco's smartspice also offers a w-element model.  When
I tried using it several months ago it had some problems
replicating time domain loss from DC to several Ghz.  They
have made some changes to the w-element implementation
since then but I have not tried them out.  

Mike

> -----Original Message-----
> From: Elen Parker [mailto:elen_parker@xxxxxxxxxxx] 
> Sent: Monday, December 17, 2001 4:51 PM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] selection of Tx line models depending on frequency
> 
> 
> 
> Hi!
> 
> I have questions about until what frequency I can use 
> "lossless transmission 
> line model" which is supported by XNS/TLC tools at XTK.
> 
> I've heard that after the boundary frequency I had better use 
> W-element 
> whose characteristics are obtained by XFX Field Solver or 
> HSPCIE Field 
> Sovler. But I have a little idea until what freqeuncy XTK or 
> Spectrqwest can 
> give the reliable simulation results like up to f=1 GHz ( DDR 
> data rate) or 
> f=500 MHz(DDR data rate).
> 
> If XTK cannot give the reliable results after 1 GHz(just 
> example), is HSPICE 
> only tools which I can resort to?
> Thanks in advance.
> 
> Elen
> 
> 
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