BGA Red Dye Penetrant Testing
Ok, so it happened again. Another urgent request was brought to me for action. This time it was a customer who had performed a Red Dye Penetration......
Ok, so it happened again. Another urgent request was brought to me for action. This time it was a customer who had performed a Red Dye Penetration......
The most common metal thermal interface materials are made from indium alloys which melt between 100C to 200C. Some power devices I have come across d...
Head-in-pillow defects caused by on-line processing issues are categorized under Process Issues. These include printing, placement and reflow. Printin...
Corrosion leads to field failures. I could probably stop right there – that’s bad enough. To flesh that out a little more, corrosion can l...
Tabbing Ribbon Solar tabbing ribbon typical consists of 10-15 micrometers of solder alloy coated on OFHC or ETP copper strip. SN60, (60% tin and 40% l...
Folks, 1. APEX appeared to be a big success. The Las Vegas venue also seemed to be a big hit. Since I’m not a big fan of gambling or smok...
Folks, About two years ago it appeared that SAC305 (3.0% silver, 0.5% Cu, the balance tin) was becoming the de-facto standard for Pb-Free assembly. Wi...
Please don’t be fooled by misconceptions like the following: 1) Lead is bad 2) Soldering is simple 3) Soldering is complex 4) Changing a S...
A couple of my colleagues, Jim Hisert and Andy Mackie recently published an article about the use of solders in chip packaging. The article begins wit...
I love to read white papers from the 1930’s on indium (the element). People had no idea what interesting properties they would discover from wor...
There has been a increase in the number of requests for reflow profiles for lead-free solders. This is a change from last year, where a majority of th...