Improved IMC Growth Rate Calculator
Peter writes: Dear Dr. Ron, I am thrilled with your Excel® program to calculate IMC thickness as a function of time. However, I wanted to calculat...
Dr. Ron Lasky's Blog
Solder Paste is Not a Commodity
Folks, I was getting a little cabin fever, so I thought I would go for lunch at Simon Pearce. The ambiance there always relaxes and refreshes me. So, ...
Metal TIMs 101 Chapter 1
Folks, Dr. Ron: For my next several posts, I would like to chat with Indium Corporation’s metal thermal interface materials (TIMs) Product Manag...
Acceleration Factor Correction
Folks, About a year ago, I posted on acceleration factors in temperature stress testing. I made a mistake with the exponent. Let's fix that....
Patty and The Professor 15th Anniversary
It is hard to imagine that it has been 15 years since “The Adventures of Patty and the Professor” debuted. It started with a few blog post...
Square vs Circular Apertures May Reduce Graping
Dear Dr. Ron, We are experiencing some graping on BGA solder joints. One of my colleagues said he heard that usingnbsp square versus our current round...
Conclusion to: Profits are Down. Could a Cheaper Solder Paste Have Caused it?
Folks, Let's see how Ivy University grad student Maria Gonzales is handling her assignment to find the lost profits a Liberty Elecronics&hell...
Profits are Down. Could a Cheaper Solder Paste Have Caused It?
Folks, Let's see how Professor Patty is doing, Professor Patty Coleman stared out of her office window at the waning remnants of snow on Ivy Unive...
Book Review: Chip War
Folks, It gives me pause to think that I have lived through most of the electronics revolution. One of my first memories is that my family, along with...
Metal Mass Fraction Calculator
Folks, Can it be almost 20 years ago that I developed the solder alloy density calculator? I have received more requests on this topic than any other....
Wave Solder Calculator
Folks, I remember in 1994 (can it be 30 years ago?) that a colleague commented that in 5 years wave soldering would go away. Well 30 years have passed...
How to Calculated Equivalent Cp and Cpk when Spec Limits are Not Symmetrical
Folks, Cp and Cpk assume symmetrical specification limits with respect to the target. However, sometimes specification limits are not symmetrical. As ...