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Footprints for low standoff flux removal

Printed From: PCB Libraries Forum
Category: PCB Footprint Expert
Forum Name: Questions & Answers
Forum Description: issues and technical support
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=2688
Printed Date: 06 Oct 2024 at 11:22pm


Topic: Footprints for low standoff flux removal
Posted By: ransonjd
Subject: Footprints for low standoff flux removal
Date Posted: 29 Sep 2020 at 7:51pm
Is there a simple setting to generate footprints for low standoff components with no solder mask under the body of the component? This is to increase the gap under the component for flux removal during cleaning. It's easy enough to edit the mask by hand for a few components, but it would be nice to automate. And I would prefer not to keep separate fpx files for no-clean and clean footprints for the same component.


Replies:
Posted By: Tom H
Date Posted: 30 Sep 2020 at 7:21am
You can use the "Drafting" feature to add solder mask removal shape (like a filled Rectangle). 

Place it at 0,0 or any coordinate. 

You know the "S" dimension (the space between pins) by selecting the Footprint tab. 

You know the length and width of the package from the component dimensions. 



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