[SI-LIST] Re: Effect of PCB trace cross-section on SI
- From: Istvan Novak - Board Design Technology <Istvan.Novak@xxxxxxx>
- To: zeeshan73@xxxxxxxxx
- Date: Wed, 29 Aug 2007 12:04:54 -0400
Zeeshan,
Yes, there is a possibility for round-shaped cross section in PCBs.
The Multiwire solution has been available for quite a while.
A Google search for these terms will give you some descriptions.
Thanks
istvan
Zeeshan Siddiqi wrote On 08/29/07 11:41,:
>Are they teaching SI in college now? wow, times have
>changed.
>
>other than a co-axial setup, do we have any occurances
>of having a circular trace on a PCB? trapeziodal yes,
>but maybe some fab folks can enlighten us.
>thanks in advance.
>
>-zeeshan
>
>
>
>--- steve weir <weirsi@xxxxxxxxxx> wrote:
>
>
>
>>That sounds like a homework question. You can
>>answer it by determining
>>what properties would you expect to change by
>>changing the cross-section
>>shape. Then determine whether those property
>>changes will impact your SI.
>>
>>Steve.
>>Paniraj G. wrote:
>>
>>
>>>Hi Gurus,
>>>
>>>
>>>I am relatively new to PCBs and SI. I have a small
>>>
>>>
>>query on the PCB trace
>>
>>
>>>shapes.
>>>
>>>Currently the PCB trace cross-sections are
>>>
>>>
>>rectangular (may not be exact due
>>
>>
>>>to process constraints).
>>>
>>>If the cross-section happens to be circular, what
>>>
>>>
>>affect it will have on the
>>
>>
>>>SI( any Pros and Cons).
>>>
>>>
>>>
>>>Regards,
>>>
>>>Paniraj G
>>>
>>>
>>>
>>>
>>>
>>>
>>>
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