Print Page | Close Window

Do we haev a new release of IPC-7351?

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=3150
Printed Date: 06 Dec 2022 at 7:44pm


Topic: Do we haev a new release of IPC-7351?
Posted By: dramos
Subject: Do we haev a new release of IPC-7351?
Date Posted: 29 Jul 2022 at 3:56am
Hi to all, 

Watching a new video from Altium Academy,

https://www.youtube.com/watch?v=Qhe8BgAFokc&t=44s" rel="nofollow - https://www.youtube.com/watch?v=Qhe8BgAFokc&t=44s

I realized that they mention on one of their slides the IPC-7351C. 



Is there any news about it?

Thanks a lot for your comments.

Regards,
daraga



Replies:
Posted By: Tom H
Date Posted: 29 Jul 2022 at 8:12am
For the past 6 years IPC has been working on updating the Surface Mount section in the IPC-7351C draft. 

Then the IPC Land Pattern Committee paused for a year to focus on Through-hole guidelines for a new document called IPC-7352 and get that released ASAP. 

Then the IPC Land Pattern Committee decided to combine Through-hole and Surface Mount in the new IPC-7352 and scrap the IPC-7351C. 

Every reference to IPC-7351C must be deleted or scrubbed from the electronics industry. 

IPC-7352 should be released at the end of the year. It just went to ballot vote last month. 



-------------
Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - Twitter - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn


Posted By: dramos
Date Posted: 31 Jul 2022 at 11:49pm
Hi Tom,
Many thanks for the info. 
I hope to be able to read the new spec next winter.
Best regards,
dramos


Posted By: dramos
Date Posted: 04 Nov 2022 at 3:56am
Dear Tom,

Any news about IPC-7352 ?

Santa is coming.... 

Regards
David


Posted By: Tom H
Date Posted: 04 Nov 2022 at 8:26am
The IPC-7352 was voted on and approved last month and sent to typesetting. 

It should be released by the end of the year and ready for the IPC Store at IPC APEX in San Diego the first week of February 2023. 



-------------
Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - Twitter - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn


Posted By: dramos
Date Posted: 07 Nov 2022 at 12:02am
Thanks for the info, Tom !!!  



Posted By: NJ_Ecad_Guy
Date Posted: 29 Nov 2022 at 8:02am
Hi Tom,

Presuming IPC-7352 would change a lot of calculations for pads etc. Do you have a timeline for supporting it?

Regards,

Ken


Posted By: Tom H
Date Posted: 29 Nov 2022 at 12:56pm
The IPC-7352.opt file is already on your computer. 

Select "Tools > Options > Open > IPC-7352" 

It turns off the fabrication and Assembly tolerances and updates all negative solder joint goals to 0.00. 

This will affect you pad stack calculations by +/- 0.05 in the length and width. 

There is also a IPC-7352 land pattern naming convention that we will support as a new Console Option. 



-------------
Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - Twitter - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn


Posted By: dramos
Date Posted: 30 Nov 2022 at 12:26am
Dear Tom,

The new naming convention is going to differ from the PCB Libraries naming convention that was defined in Console Options till now?

From which version is going to available in Footprint Expert?

Regards,
david



Posted By: Tom H
Date Posted: 30 Nov 2022 at 10:02am
5-years ago the chairperson of the IPC 1-13 Land Pattern Committee (Karen McConnell) wanted to update the IPC-7351C footprint naming convention. It took a couple months of effort and back and forth to establish a naming convention that would greatly eliminate duplication of footprint names by simply added additional details like Terminal Lead Length, Thermal Pad Size, BGA Ball Size, SOP Body Length and so on. 

We put the IPC-7351C in Library Expert V2017. We created Power Point presentations of all the changes and updates coming in IPC-7351C. 

Then 2 years ago Karen McConnell retired from the 1-13 committee chairperson and Gary Ferrari stepped down as Vice Chairman. 

IPC elected a new Chairman to take over and the decision was made to scrap 6 years of effort into IPC-7351C revert back to IPC-7351B and simply enhance it by adding Through-hole technology. 

The IPC-7351B naming convention was kept in tact but the committee added a couple features to improve it. 

One of the basic differences between IPC-7351C and IPC-7352 Naming Convention is the Pin Quantity. 
IPC-7351C relocated the Pin Quantity to the front of the Footprint Name. 
IPC-7351B had the Pin Quantity at the end of the Footprint Name. 

Footprint Expert V23 will support three Footprint Naming Conventions. 
  1. PCB Libraries (which is IPC-7351C)
  2. IPC-7351B
  3. IPC-7352



-------------
Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - Twitter - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn


Posted By: dramos
Date Posted: 30 Nov 2022 at 11:19pm
Dear Tom,

Many thanks for the info. 

A part of the modification of the value of the Fabrication and Assembly tolerances, is there other modification on the pad's calculation formula?

If the main modification is this I consider that it is a minor change because you wrote many times that these values could be changed to 0.00 due to the accuracy of the new machines.

I can't wait the Footprint Expert V23 to check the changes.

Regards,
David


Posted By: SDTKO
Date Posted: 01 Dec 2022 at 4:04am
Originally posted by Tom H Tom H wrote:

The IPC-7352.opt file is already on your computer.

Where can I find the IPC-7352 option file?
My installation folder appears to only contain an IPC-7351C.opt file (FPE Enterprise 2022.14).


Posted By: dramos
Date Posted: 01 Dec 2022 at 4:14am
Hi SDTKO,

Tom in his last response speaks about V23...

I think that we must wait until the new version is ready.

Regards,
dramos


Posted By: Tom H
Date Posted: 01 Dec 2022 at 8:56am
The IPC-7352.opt file is located in the main installation folder:

C:\Program Files (x86)\PCB Libraries\Footprint Expert 2022



-------------
Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - Twitter - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn


Posted By: dramos
Date Posted: 02 Dec 2022 at 12:13am
Dear Tom,

Which version of Footprint Expert are you using?

I have just installed 2022.14,11/8/2022 and I am not able to find that file.



Regards,
david


Posted By: Nick B
Date Posted: 02 Dec 2022 at 9:42am
It looks like you're missing most of the other files too. Try to reinstall.
Could be some security software is interfering with the installation, maybe?
Not counting the folders, you should have about 20 files in this folder, you have far less than that.


-------------
Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - Twitter - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn


Posted By: Tom H
Date Posted: 02 Dec 2022 at 10:17am
I'm using V2022.15 pre-release. 

Note: V2022.15 will be officially released this weekend. It will be the last release this year. 



-------------
Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - Twitter - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn


Posted By: acastro
Date Posted: 05 Dec 2022 at 10:26am
Hi Tom,

In this thread, I see that the .opt for IPC-7352 should be there when installed, but I don't see it show up after installation.

Thank you.


Posted By: Tom H
Date Posted: 05 Dec 2022 at 10:29am
What Footprint Expert version are you using? 



-------------
Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - Twitter - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn


Posted By: Nick B
Date Posted: 05 Dec 2022 at 10:54am
Please download and use the latest build.

-------------
Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - Twitter - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn



Print Page | Close Window