Wafer and Substrate Bumping with Solder Paste (II)
… and we’re back on the question of “how small a solder powder particle do I need, to achieve a certain bump height or bump diameter...
Dr. Andy Mackie's Blog
Wafer and Substrate Bumping with Solder Paste (I)
This week’s topic is both wafer bumping and substrate bumping with solder paste, and the issue of powder size. I’ve recently been dea...
Solder Powder Types 3 4 5 6 7…
My friend and colleague, Eric Bastow, got back last month from an IPC standards meeting with some interesting news for those of us who supply and use ...
Andy's Top 10 Presentation Tips
Andy’s 10 Rules for Presentations I spent this morning discussing presentations with a younger colleague, and realized that I may have some poin...
Unique Solderspheres
Solderspheres or solder spheres, or even solder balls: whatever you call them, Indium Corporation has been making them for years and has rightly acqui...
Halogen-free High-Lead(Pb) Die-Attach Solder Paste: Not an Oxymoron
I mentioned in a previous a blog posting that the primary driver for halogen-free electronics is ostensibly environmental, but that the confusion abou...
Lead (Pb) in ELV Solder: European Automotive Electronics Legislation - Feb 2010 Update
Those of you have been watching this blog for a while will know that I’ve been keeping tabs on the status of the European ELV (End-of-life vehic...
Dr. Alan Rae: Nanotechnology in Electronics Assembly
I caught up with Alan Rae after a recent IWLPC committee meeting, where he jokingly asked me to, “Stop asking important questions” –...
Neural Networks and Market Intelligence
Just before the New Year, I had the opportunity to sit down with my old friend and colleague Dr Conrad Sorenson. Conrad is an expert in the fusion of ...
Forming Gas I: What is it?
Forming gas is a complicated topic, so I will provide some preliminary background in this section, then get into the soldering part next time. Don&rsq...
Understanding Gold on Nickel
The use of gold layers deposited onto nickel is standard in many industries, from DRAM memory module edge connectors, to electrical test probe co...
Veterans' Day / Armistice Day - November 11th
Many of you know that my brother, Wing Commander Kevin Mackie, returned from his tour of duty in Khandahar, Afghanistan, at the beginning of this year...