PCB Libraries Forum : SMD Land Pattern Calculation For Wave Solder? https://www.PCBLibraries.com/forum/ Fri, 26 Jun 2026 14:40:32 +0000 Fri, 07 Aug 2015 06:27:15 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=1746 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[SMD Land Pattern Calculation For Wave Solder? : The solder joint goals for SMD...]]> https://www.PCBLibraries.com/forum/smd-land-pattern-calculation-for-wave-solder_topic1746_post7140.html#7140 Author: Tom H
Subject: 1746
Posted: 07 Aug 2015 at 6:27am

The solder joint goals for SMD Wave Solder and Flex Circuit libraries might be an automatic in V2016.
 
IPC states that the same pattern for Reflow can be used for Wave Solder, but I have heard different from component manufacturers and assembly shops.
 
The typical formula for a Wave Solder pad size calculation is -
  1. Heel = 0
  2. Side = 0
  3. Toe = longer than normal
The typical formula for a Flex Circuit pad size calculation is -
  1. Solder Mask define (mask over pad) the Toe and Heel by 0.05 mm
  2. Do not solder mask define the side

 

]]> Fri, 07 Aug 2015 06:27:15 +0000 https://www.PCBLibraries.com/forum/smd-land-pattern-calculation-for-wave-solder_topic1746_post7140.html#7140 <![CDATA[SMD Land Pattern Calculation For Wave Solder? : Thanks for your imformation. ]]> https://www.PCBLibraries.com/forum/smd-land-pattern-calculation-for-wave-solder_topic1746_post7139.html#7139 Author: drj-bbe
Subject: 1746
Posted: 07 Aug 2015 at 2:21am

Thanks for your imformation.]]> Fri, 07 Aug 2015 02:21:15 +0000 https://www.PCBLibraries.com/forum/smd-land-pattern-calculation-for-wave-solder_topic1746_post7139.html#7139 <![CDATA[SMD Land Pattern Calculation For Wave Solder? : You can define Wave Solder rules...]]> https://www.PCBLibraries.com/forum/smd-land-pattern-calculation-for-wave-solder_topic1746_post7136.html#7136 Author: Tom H
Subject: 1746
Posted: 05 Aug 2015 at 8:42pm

You can define Wave Solder rules in Library Expert > Preferences.
  
The Library Expert FPX file contains these 2 items and everything else is documentation -
  1. Component Dimensions
  2. Mfr. Recommended Patterns

You can create many rule files for Flexible Circuits, Wave Solder, High Density (cellular), Class 3 (medical/military) or user specific preferences for your personal corporate rules.

Use the same FPX file to auto-generate various libraries for every aspect of the electronics industry.
 
You are in 100% control of the resulting footprint and the many different libraries you create.
 
With Library Expert, you have Free access to download hundreds of thousands of parts on-line. There is no need to manually build PCB library parts anymore. Everything is automated.
 
]]> Wed, 05 Aug 2015 20:42:51 +0000 https://www.PCBLibraries.com/forum/smd-land-pattern-calculation-for-wave-solder_topic1746_post7136.html#7136 <![CDATA[SMD Land Pattern Calculation For Wave Solder? : Hello, Does Library Expert Pro...]]> https://www.PCBLibraries.com/forum/smd-land-pattern-calculation-for-wave-solder_topic1746_post7134.html#7134 Author: drj-bbe
Subject: 1746
Posted: 05 Aug 2015 at 7:44pm

Hello,
 
Does Library Expert Pro can calculate SMD land pattern for wave process (SMD components mounted on board with glue, and then go through wave soldering)?
 
Normally, SMD land pattern size will be larger than normal design if use wave soldering.
 
Is there calculation suggested?
 
Thanks
]]> Wed, 05 Aug 2015 19:44:09 +0000 https://www.PCBLibraries.com/forum/smd-land-pattern-calculation-for-wave-solder_topic1746_post7134.html#7134