|
|
Pin in Paste |
Post Reply 
|
| Author | |
phil.holden 
Advanced User 
Joined: 14 Aug 2020 Status: Offline Points: 59 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: Pin in PastePosted: 12 Jan 2023 at 8:09am |
|
Are there any plans for inclusion of a 'Pin in Paste' hole size calculator? Or does anybody have any credible information regarding making this calculation.
|
|
 |
|
|
|
|
Tom H
Admin Group 
Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5716 |
Post Options
Thanks(0)
Quote Reply
Posted: 12 Jan 2023 at 9:44am |
|
Pin-in-Paste has been a feature in Footprint Expert from the first release.
Tools > Options > Console > Generate Through-hole Paste Mask This will add paste mask to all through-hole footprints. You can turn it on to create an entire library with Pin-in-Paste technology using your existing FPX file library. You can add a Density Level (Suffix) modifier to identify the footprints that have Paste Mask. I recommend "P" or "PIP". Use the "Overwrite Footprint Name Suffix" option right above the "Generate Through-hole Paste Mask" button. |
|
|
|
|
phil.holden
Advanced User
Joined: 14 Aug 2020 Status: Offline Points: 59 |
Post Options
Thanks(0)
Quote Reply
Posted: 13 Jan 2023 at 2:55am |
|
Hi Tom,
I know we have had the ability to include the paste mask in through-hole footprints. I was wondering whether there was an actual calculator for getting the hole-to-lead ratio correct for the purpose of PIP technology? |
|
|
|
|
Tom H
Admin Group
Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5716 |
Post Options
Thanks(0)
Quote Reply
Posted: 13 Jan 2023 at 9:38am |
|
There is not a Pin-in-Paste calculator as there is no guidance from any world standards group like IPC.
When I see a Pin-in-Paste in the mfr. recommended pattern, they normally call out the paste mask size. If you have a known calculator for Pin-in-Paste technology, please send it to us. |
|
|
|
|
Tom H
Admin Group
Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5716 |
Post Options
Thanks(0)
Quote Reply
Posted: 13 Jan 2023 at 10:35am |
|
There is a feature in Footprint Expert called "Incremental Pad Stack" in which the pad size annular ring gets bigger an bigger depending on the terminal lead size.
The calculation is - Pad Size is 1.5X of the hole size. 1 mm hole = 1.5 mm pad (0.25 annular ring) 2 mm hole = 3.0 mm pad (0.50 annular ring) 3 mm hole = 4.5 mm pad (0.75 annular ring) 4 mm hole = 6.0 mm pad (1.00 annular ring) The hole size is calculated from the max. lead diameter. So the 1.1 scale paste mask over pad size should be adequate, but I see Samtec connectors call out large paste mask sizes in their datasheets. |
|
|
|
|
Post Reply
|
|
| Tweet |
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options