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Land Pattern / Solder Joint Goals

Printed From: PCB Libraries Forum
Category: Libraries
Forum Name: Footprints / Land Patterns
Forum Description: [General or a CAD specific issues / discussions]
URL: http://www.PCBLibraries.com/forum/forum_posts.asp?TID=2523
Printed Date: 07 Mar 2021 at 1:41am


Topic: Land Pattern / Solder Joint Goals
Posted By: bsulzer
Subject: Land Pattern / Solder Joint Goals
Date Posted: 09 Sep 2019 at 4:05am
Hi everybody.

I am quite sure to remember the least toe value for rectangular end cap equal or lager than 0603 to be 0.15 mm (according to IPC-7351B).

from the library expert solder joint goal tables i get different values the bigger the components get (0603 already 0.2, 1206 & 1210 have a 0.25mm toe, and so on).

could anyone help me solve my confusion?

Cheers
Beat



Replies:
Posted By: Tom H
Date Posted: 09 Sep 2019 at 6:56am
The Library Expert has IPC-7351B Solder Joint Goals in a Preference file in this folder - 
C:\Program Files (x86)\PCB Libraries\Library Expert 2019 

File Name: IPC-7351B_DefaultPreferences.dat 

The Library Expert default Preference file was updated to conform to IPC-J-STD-001. 



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