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

Other, Software Manufacturer

  • Phone 800-IBM-4YOU

IBM Corporation website

Company Postings:

(4) technical library articles

(1) news release

  • Jul 27, 2017 - Electrochemical Methods to Measure the Corrosion Potential of Flux Residues | KYZEN Corporation
  • Jul 21, 2017 - How to calibrate JUKI CF feeder | ZK Electronic Technology Co., Limited
  • Jun 01, 2017 - Evaluating the Effects of Plasma Treatment prior to Conformal Coating on Electronic Assemblies to Enhance Conformity of Coverage | Nordson MARCH
  • Mar 30, 2017 - Multiple Methods for Applying Paste Flux or Solder Paste for BGA Rework | BEST Inc.
  • Feb 01, 2017 - BGA Rework Process | BEST Inc.
  • Browse Technical Library »

Inclusion Voiding in Gull Wing Solder Joints article has been viewed 2658 times

conformal coating software

Precision Auger Dispense Pump