Pad Size calculation

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I'm noticing that Footprint Expert does not take into account the lead thickness of certain devices (example D2PAK/TO-263AB) in the calculations?  Since IPC A-610 uses percentage of solder fillet -to- lead thickness in determining acceptance, wouldn't it be appropriate to incorporate this? 

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
gedeakins Members Profile Send Private Message Find Members Posts Add to Buddy List New User Joined: 27 Nov 2013 Location: Conneticut Status: Offline Points: 2	Post Options Post Reply Quote gedeakins Report Post Thanks(0) Quote Reply Topic: Pad Size calculation Posted: 27 Nov 2013 at 9:11am
	I'm noticing that Footprint Expert does not take into account the lead thickness of certain devices (example D2PAK/TO-263AB) in the calculations? Since IPC A-610 uses percentage of solder fillet -to- lead thickness in determining acceptance, wouldn't it be appropriate to incorporate this?



Tom H Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5716	Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 27 Nov 2013 at 10:46am
	The PCB Library Expert uses rules from IPC-7351 not IPC-A-610. Please present your issue with IPC and let us know what they say. Thanks!
	Stay connected - follow us! X - LinkedIn