Inclusion Voiding in Gull Wing Solder Joints


August 30, 2012


T.L. Lewis, C.O. Ndiaye, J.R. Wilcox


This paper provides definitions of the different voiding types encountered in Gull Wing solder joint geometries. It further provides corresponding reliability data that support some level of inclusion voiding in these solder joints and identifies the final criteria being applied for certain IBM Server applications. Such acceptance criteria can be applied using various available x-ray inspection techniques on a production or sample basis. The bulk of supporting data to date has been gathered through RoHS server exempt SnPb eutectic soldering operations but it is expected to provide a reasonable baseline for pending Pb-free solder applications....

  • Download Inclusion Voiding in Gull Wing Solder Joints article
  • To read this article you need to have Adobe PDF installed

September 5, 2012

One term used to describe voiding that has enjoyed renewed popularity due to lead-free soldering is 'champagne voiding.' It usually consists of clusters of very small voids. How does this type of voiding fit within the scheme that you've presented here?

You must be a registered user to talk back to us.

Company Information:

IBM Corporation

International Business Machines Corporation is a multinational technology. IBM manufactures computer hardware and software, offers infrastructure, hosting and consulting services.

Armonk, New York, USA

Consultant / Service Provider, Other

  • Phone 800-IBM-4YOU

IBM Corporation website

Company Postings:

(4) technical library articles

(1) news release

  • Jun 27, 2022 - INTELLI-Pro -- The Future of Automated Optical Inspection | MIRTEC Corp
  • Apr 11, 2022 - iNEMI Webinar 07.07.2021 - PCB Cleaning | ZESTRON Americas
  • Jan 28, 2022 - Open Radio Unit White Box 5G | Whizz Systems
  • Nov 10, 2021 - Understanding the Cleaning Process for Automatic Stencil Printers | ITW EAE
  • Oct 20, 2021 - PCB Surface Finishes & The Cleaning Process - A Compatibility Study | ZESTRON Americas
  • Browse Technical Library »

Inclusion Voiding in Gull Wing Solder Joints article has been viewed 741 times

Global manufacturing solutions provider

fluid dispensing pumps for integration