Colored Fluxes: Not Child's-Play
One of the first activities any child enjoys, once they can manipulate things, is using paints and crayons to color pictures. Stay with me: ...
Solder Wire
Solder wire is generally used for manual soldering operations, including rework. But, it can......
Tin-Silver (SnAg) Solder Alloy for Stringing and Bussing Solar Modules
Typical Tabbing Ribbon Solders img width="400" align="right" height="301" src="https://cdn2.content.compendium...
SAC Solder Alloy Wets Well, It Just Doesn't Spread Well
Folks, I have often pointed out that SAC solder’s poor wetting is both a curse and Godsend. It is a curse when trying to fill ...
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 ...
Thermocompression Bonding for Microbump Flip-Chip Soldering
For reasons that I will discuss in a post later this year, a common factor that is emerging in the area of copper-pillar microbump 2.5D and 3D jo...
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...
Humidity and Solder Paste Do Not Mix
Unbeknowst to me, the refrigerator where I store my solder paste and fluxes that I use for SIR (Surface Insulation Resistance) testing was.....
Solar Cell Testing
As a tech guy, I couldn’t be more excited about testing these 8 different c-Si solar cell / metallization designs! img width="400" hei...
Bismuth Solder Alloy Follow On
Folks, A few people asked some questions after my last post on bismuth solders. Here they are:......
The Limits of Aqueous Flip-Chip Cleaning (I)
This post was prompted by a Korean customer, who this month asked what the limitations are for aqueous (water-based) cleaning for fluxes used in ...