Back in October this thread concluded with an excellent
report by Mike Buetow. His report can be gleaned from the IPC
archives at http://www.automata.com/ipc/TechNet/index.html
Good Luck
George Uptain - Schlumberger Oilfield Services - APC
(512)331-3183 Austin, Texas
>----------
>From: AMC-CAL-DVP Richard Hatano[SMTP:[log in to unmask]]
>Sent: Friday, November 15, 1996 11:04 AM
>To: designercouncil; eric.bonatti; nelsonpc; technet
>Subject: RE: Question on Current carrying charts
>
>
>Wow, how many copycats does it take before you have an avalanche? I would
>like a copy too it something turns up.
>
>Thanks so much
>
>[log in to unmask]
> ----------
>From: nelsonpc
>To: designercouncil; technet; eric.bonatti
>Subject: RE: Question on Current carrying charts
>Date: Thursday, November 14, 1996 1:54PM
>
>Please forward me a copy also.
>
>Thanks,
>
>Nelson P. Calimquim
>Project Engineering Supervisor
>M-Flex
>[log in to unmask]
>
> ----------
>From: Eric Bonatti[SMTP:[log in to unmask]]
>Sent: Tuesday, October 08, 1996 11:43 AM
>To: [log in to unmask]; [log in to unmask]
>Subject: Re: Question on Current carrying charts
>
>Davis Benjamin L wrote:
>>
>> Does anyone have the mathmatical formulas to determine the current
>> carrying capacity of traces. I know this information is available in
>> charts (Fig. 3-4a,b,c in IPC-D-275), but I was wondering if someone has
>> the mathematical formulas used to construct these charts.
>>
>> My plan is to try and write a short program to figure the current
>> capabilities rather than search for my copy of the 275 and a
>> ruler/staightedge each time I need the infomation. On the other hand,
>> if anyone has a script and can share it, I'd love to have it and save
>> myself some time.
>>
>> If I get something together I'll be happy to share it (if I can).
>>
>> thanks....ben
>> Ben Davis
>> Systems & Electronics, Inc.
>> [log in to unmask]
>
>Sounds like a great idea and I would like a copy of this as well,
>so if anyone can help on this you'd make two people happy,
>not just one... ;-)
>Thanks in advance.
> ----------------------------------------------------------------------------
>
> --
>Eric Bonatti e-mail: [log in to unmask]
>GN Nettest (Navtel Division - CANADA) vox: (905) 479-8090 ext.497
>Printed Circuit Board Design fax: (905) 475-6524
> ----------------------------------------------------------------------------
>
> --
>
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