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Use Extended Footprint Names |
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lalexman 
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Joined: 30 Jul 2012 Status: Offline Points: 679 |
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 Topic: Use Extended Footprint NamesPosted: 30 Jun 2013 at 6:56am |
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If you enable "Use Extended Footprint Names" what does that do to the footprint names? Is it only available for "USR" footprints?
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Tom H
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Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5718 |
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Posted: 30 Jun 2013 at 3:06pm |
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The original IPC-7351 footprint naming convention does not include component "Lead Length" tolerances, Thermal Tab sizes, BGA Ball Diameter or various pin assignments into account. Therefore, the same component with different tolerances can produce a different land size and spacing with the same footprint name. A footprint name of SOP50P710X120-14N can have version A, B, C, D which do not indicate the variances in Thermal Tab or Lead Length - There are 3 component features that affect the footprint name
For "component mfr. recommended footprint pattern" drop the environment level character after the pin qty. - SOP50P710X120-14 |
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