[SI-LIST] Re: Low leakage & high voltage load board + socket solution
- From: "Ken Cantrell" <Ken.Cantrell@xxxxxxxxxxxxxxxx>
- To: "steve weir" <weirsi@xxxxxxxxxx>, "sengottuvel m.p." <m_p_sen@xxxxxxxxx>
- Date: Wed, 9 Jun 2010 07:55:46 -0600
Sengottuvel,
Keep in mind that closed form solutions, even using elliptic functions, are
not very accurate, especially when coupling is involved. For ball park
estimates, they are fine, but I would recommend ADS, Ansys, CST, or
SiSoft(to mention a few) to get the job done.
Ken
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of steve weir
Sent: Wednesday, June 09, 2010 6:09 AM
To: sengottuvel m.p.
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Low leakage & high voltage load board + socket
solution
Over the frequency range you are interested in: Integrate the parallel
conductivity along the path and multiply the result by your excitation
voltage. You can use tools such as Ansys to perform that math from the
geometry and materials characteristics, rather than doing the Calculus
exercise yourself. If your geometry is very simple, then you can
generate an estimate by breaking the problem into simplified segments
and doing the math by hand, or in a spreadsheet.
That all being said, the usual practice to insure low DC leakage is the
use of guard structures either connected to a rail that will yield
sufficiently low leakage, or actively driven with a replica of the
signal on the protected trace.
Steve.
sengottuvel m.p. wrote:
> Hi Experts,
>
> In the Low leakage & high voltage load board + socket solution, between
two parallel nets, how to estimate (formula or simulation) the leakage
current in adjacent trace?
>
> The force 80V is applied in one of metal line and need to make sure the
adjacent metal line with leakage <1nA.
>
> Regards,
> Sengottuvel
>
>
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--
Steve Weir
IPBLOX, LLC
150 N. Center St. #211
Reno, NV 89501
www.ipblox.com
(775) 299-4236 Business
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