[SI-LIST] Re: PCB modelling wizard ?
- From: "Aubrey Sparkman" <asparkman@xxxxxxxxxxxxx>
- To: "'steve weir'" <weirsi@xxxxxxxxxx>, "'QU Perry'" <Perry.Qu@xxxxxxxxxxxxxxxxxx>
- Date: Mon, 11 May 2009 11:58:09 -0500
Perry,
I agree that scripts are certainly the way to go if you do LOTS of 3D
modeling on a continual basis. For others who 3D modeling only at certain
points in a design cycle, it may be faster to use the interface tool. Even
for the pre-layout stage (and perhaps because I have some experience with
Allegro), I find it easier to setup a board and draw the desired geometry in
Allegro and then transfer it to the 3D tool than to setup a board and draw
the geometries in the 3D tool. For the post-layout correlation cases, it's
easy to delete unwanted geometries in Allegro and transfer the remainder.
Transfer to Momentum is very easy; transfer via Alinks to HFSS or Q3d has a
couple of bugs you need to watch out for but can be made to work. In any
case, you can convert specific parts of the design to parameterized parts
after the transfer.
For your specific needs, you should consider the script development as an
investment and see which way wins for overall productivity.
Aubrey Sparkman
Aubrey.K.Sparkman@xxxxxxxx
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of steve weir
Sent: Monday, May 11, 2009 11:23 AM
To: QU Perry
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: PCB modelling wizard ?
Perry, scripts are your friend here.
Best Regards,
Steve.
QU Perry wrote:
> Hi,
>
> I wonder how everyone here creates the model when you try to do a 3D
> EM simulation of PCB related features, do you:
>
> 1. manually create 3D model using the modeler that comes with the
> tool; 2. Use the interface tool provided by EM tool vendor to link to
> PCB or mechanical CAD tool;
>
> I always used option 1 for the following reasons:
> 1. only include features I need so make the model clean and small; 2.
> be able to parameterize and do what if analysis; 3. such 3D simulation
> is usually done in prelayout stage to explore design space so no board
> file is available.
>
> However, I get increasingly tired of doing this as it's a very time
> consuming process. It's no fun to create multi layer PCB and all small
> features such as pads, vias, traces, etc., manually, and each design
> has something different which makes model reuse very difficult.
>
> Was hoping for some kind of wizard tool to let me e.g. create
> multi-layer PCB stackup, define via (pads, antipad etc.) using text
> based dimensions and have the modeler create a PCB model
> automatically, and I can add unique features/structures on top of
> that. That should save a lot of time. Unfortunately not many vendors
> have that option or interested in implementing them (currently using CST
Microwave Studio).
> I'm aware that Simberor has some of the capability described above but
> then we can't afford getting every new tool in the market.
>
> Regards
>
> Perry
>
> =======================================
>
> Perry Qu
>
> IPD Design & Qualification, Alcatel-Lucent Canada Inc.
>
> 600 March Road, Ottawa ON, K2K 2E6, Canada
>
> DID: 613-7846720 Fax: 613-5993642
>
> Email: perry.qu@xxxxxxxxxxxxxxxxxx
>
> =======================================
>
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