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BGA With Rows of Deleted Pins

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=3544
Printed Date: 24 Sep 2025 at 12:44am


Topic: BGA With Rows of Deleted Pins
Posted By: m.elsayed
Subject: BGA With Rows of Deleted Pins
Date Posted: 23 Sep 2025 at 7:10am
According to this FPX file:
uploads/11979/micronBGA.fpx" rel="nofollow - uploads/11979/micronBGA.fpx

According to below image we build BGA, BUT RESULT CAN'T MATCH REQUIRED data in datasheet.

Please check and let me know your thoughts.

datasheet shape
 



Replies:
Posted By: Tom H
Date Posted: 23 Sep 2025 at 8:36am
When building these BGA footprints, enter all the pins 1 - 9. 

Then window in on the 3 rows (Rows 4 - 6) and Right Mouse Button and select Hide. 
  


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Posted By: m.elsayed
Date Posted: 23 Sep 2025 at 12:34pm
Already did that as image shown



Please check the FPX file , and let me know how to make pin numbering and pin1 orientation as found on datasheet



Posted By: m.elsayed
Date Posted: 23 Sep 2025 at 12:54pm
i try use all pin orientation option to reach shape on datasheet, but can't
please explain how can achieve shape on datasheet


Posted By: Tom H
Date Posted: 23 Sep 2025 at 1:50pm
The links to your Data do not work. 

The Pin Qty Must Be 16 X 9  

Then click and drag a window on the 3 middle rows to select the pins and then -
Right Mouse Button > Hide

This is a very common BGA in 3 minutes that we build regularly with no problems. 



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Posted By: m.elsayed
Date Posted: 23 Sep 2025 at 3:44pm
when use 16*9 not result ball names and number like datasheet
since fpx not work with you below are details, how to bulid this shape like datasheet and pin1 be in upper left
part:
MT41K128M16JT-125:K
datasheet:
http://download.siliconexpert.com/pdfs2/2022/3/29/17/59/58/935402/mic_/manual/2gb_1_35v_ddr3l.pdf" rel="nofollow - http://download.siliconexpert.com/pdfs2/2022/3/29/17/59/58/935402/mic_/manual/2gb_1_35v_ddr3l.pdf



Posted By: m.elsayed
Date Posted: 23 Sep 2025 at 4:32pm
Great many thanks Tom for your great support

Smile



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