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flat pack calculations

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=2601
Printed Date: 18 Nov 2025 at 6:04am


Topic: flat pack calculations
Posted By: AGONZ67
Subject: flat pack calculations
Date Posted: 05 Feb 2020 at 10:07am
When creating a flat pack package IPC-2221 8.4.2 covers the basic formula but the Land Pattern Creator does not calculate these for you. You need to know the dimensions in order to create a Land Pattern, if this were the case then couldn't I just use the SOP tool to create my landpattern? Would be nice if the CFP option would calculate the CFP landpattern dimensions 'L', and 'T' based on the IPC flat-pack formula? Also, I do not see the option for a thermal tab on the CFP calculator.


Replies:
Posted By: Tom H
Date Posted: 05 Feb 2020 at 10:35am
We'll be adding Thermal Tabs to CQFP and CFP in the upcoming V2020 Library Expert. 

Due for beta release in March. 

Note: this new feature might not make the first release, but it is planned to add it ASAP. 



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