It's certainly the tool of choice. Their stackup builder, combined with
their impedance calculator, is the easiest tool of all time to use,
especially when you set up all the prepreg, core and foil libraries from
different laminators.
Building the stackup is super easy with point and click selection. You get a
superb visual display as you're building it and for documentation when
you're done, and the calculator is as accurate as it's possible to be.
Sure it's expensive, but they have a web based rental plan.
Check out these web demos:
Stackup builder
www.polarinstruments.com/help/sb200v6/lang/en/tutorial/stackup_wizard.htm
Impedance control stackup builder:
www.polarinstruments.com/help/sb200v6/lang/en/tutorial/addingstructure.htm
Andy Kowalewski
+61 (0)2 9499 4853
-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of Denis
Lefebvre
Sent: Tuesday, January 31, 2006 1:59 AM
To: [log in to unmask]
Subject: Re: [DC] Impedance/ Diff pairs/ layer stack up calculator?
Bill;
We've been looking at the Polar Instruments Si8000. My understanding is that
theirs is the "de-facto" standard in impedance calculations and stack-up
generation. This is definitely the "high-end" tool.
Our interest has been prompted by the variety of results we have seen from
various 'free' calculators vs the results we get back from our fabricators.
We really want to develop a geometry, by design, that our fabricators will
agree with.
Denis Lefebvre, CID+
Sr. PCB Designer
Finisar Corp
(408) 542-3832
-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of
Brooks,Bill
Sent: Friday, January 27, 2006 3:25 PM
To: [log in to unmask]
Subject: [DC] Impedance/ Diff pairs/ layer stack up calculator?
We want to evaluate the usefulness of a software tool for calculating
differential pairs, and estimating stack up requirements for multi layer
boards... Primarily to estimate the correct line width and spacing required
in any given design stack up or material combination.
Can any of you recommend a tool to do this sort of job that you find useful?
I'd like to look at low, med and high end tools and characterize them based
on price vs. performance and/or capabilities.
Best regards,
Bill Brooks - KG6VVP
PCB Design Engineer, C.I.D.+, C.I.I.
3030 Enterprise Court, Vista, CA 92083
http://www.dtwc.com <http://www.dtwc.com>
Tel: (760)597-1500 Ext 3772 Fax: (760)597-1510 e-mail:[log in to unmask]
_______________________________________
Member of the San Diego Chapter of the IPC Designers Council Communications
Officer, Web Manager http://dcchapters.ipc.org/SanDiego/
<http://dcchapters.ipc.org/SanDiego/>
http://pcbwizards.com <http://pcbwizards.com>
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