Minimizing Tombstoning
Folks, This post is an excerpt from Indium Corporation's The Printed Circuits Assemblers Guide to Solder Defects. Introduction: Printed...
Tombstoning
Reflow Profiling
This video is for people who are trying to select or develop the proper reflow profile. It will tell you the differences between the three main profil...
Stencil Printing for SMT Assembly Success Part 2: Print Metrics
(See Part 1) When discussing success in solder paste stencil printing for SMT assembly, one of the most important tools in an engineer‘s “...
Dartmouth Student Asks Questions About SACm® Solder Alloy
Folks, Some years ago, a leading IC manufacturer decided that their R&D effort could benefit if analyzed for possible improvement – by hirin...
Military/Aerospace Lead-Free Solder Reliability Still Unproven
Folks, I’m taking a few moments from Wassail Weekend , held annually in my village, Woodstock VT, “The prettiest small town in Americ...
Tombstoning: The Death of a PCBA
Tombstoning (also known as the Manhattan effect, drawbridge effect, or Stonehenge effect) is described (in the simplest, and most common, sense) as oc...
Indium Corporation at Semicon West 2011
Many, many thanks to the hundreds of you who came by the Indium Corporation booth at Semicon West this year. Some of you came to hear about ...
SMT Reflow Process Window: Solder Paste Maximum Slope vs. Ramp (or Average) Rate
Included in a solder paste‘s Product Data Sheet, among other things, are general guidelines which aid the customer in designing a...
Silver-free and Low-Silver Solder Alloys for SMT Discussion, Part 1: Reliability
There seems to be a growing trend to use a low-Ag or Ag-free solder alloy for Surface Mount Technology (SMT) electronics assembly, similar to what is ...
Lead-Free Soldering: Pluses and Minuses
Folks, I thought I would take a stab at listing the minuses, pluses, and “it’s a wash” aspects of assembling with lead-free (LF) sol...
Conquering Tombstoning
Tombstoning, simply, is the wetting of one side of a component before the other side, which causes the setting forces of the solder to lift the compon...
Answers to The SMT Process Quiz
Folks, Answers to the quiz of a few weeks back…... Phil and Rob had agreed to ask the GM if it was OK to ask the tech and engineers at some of...