Need a trace width chart and don't have a copy of IPC-D-275 handy. This is and great help! Thanks to Mr. Patrick.! Go here.... http://www.waterw.com/~ldallara/users/pcb_design.html > > 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 > > ---------------------------------------------------------------------------- > > > > -- > > > >*************************************************************************** > >* TechNet mail list is provided as a service by IPC using SmartList v3.05 * > >*************************************************************************** > >* To unsubscribe from this list at any time, send a message to: * > >* [log in to unmask] with <subject: unsubscribe> and no text. * > >*************************************************************************** > > > >**************************************************************************** > >* The mail list is provided as a service by IPC using SmartList v3.05 * > >**************************************************************************** > > > >* To unsubscribe from this list at any time, send a message to: * > >* [log in to unmask] with <subject: unsubscribe> and no text. * > >**************************************************************************** > > > >*************************************************************************** > >* TechNet mail list is provided as a service by IPC using SmartList v3.05 * > >*************************************************************************** > >* To unsubscribe from this list at any time, send a message to: * > >* [log in to unmask] with <subject: unsubscribe> and no text. * > >*************************************************************************** > > > > > > **************************************************************************** > * The mail list is provided as a service by IPC using SmartList v3.05 * > **************************************************************************** > * To unsubscribe from this list at any time, send a message to: * > * [log in to unmask] with <subject: unsubscribe> and no text. * > **************************************************************************** > > **************************************************************************** * The mail list is provided as a service by IPC using SmartList v3.05 * **************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ****************************************************************************