Selective Soldering: A Collection of Benefits
Selective Soldering is a great technological advancement over traditional wave soldering. This post explains why Selective Soldering is a practi...
Liquid Flux
Rosin In Soldering Fluxes: A Complex Material
All rosins are resins, but not all resins are rosins. We owe the fact that we classify fluxes as rosin to pine tree sap having fluxing properties whil...
Making Solder Preforms – Fluxing
Just as with cutting solder preforms, there are many different ways to apply flux to solder preforms. At your facility you might use a liquid or tacky...
Ball-Attach Flux WS-446-NRD for Poor Quality OSP-wetting
While on a recent trip to Malaysia, I interviewed two colleagues regarding trends in semiconductor assembly. My previously-published interview with Sz...
Another Nitinol Soldering Flux Option
Indalloy Flux #2 is not the only option for soldering to Nitinol. There is also Indalloy Flux #3. Both fluxes are strong enough to clean the......
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...
SMT Components "Blowing-Off" PCB
Recently I was at a customer who reported that their SMT components were “blowing off” their PCB. In most of the instances the component w...
Why use flux?
Flux & Substrate Compatibility Flux is a liquid, solid or gaseous material which, when heated, speeds up and/or promotes wetting of th...
Flux Residue Levels: Not as Simple as you Think
After you’ve reflowed solder in contact with a flux, you’re always left with a certain amount of flux residue. There are no clear industry...
Liquid Metal Packaging for Thermal Transfer
We’ve had some questions about using liquid metal or indium alloys liquid at room temperature containing indium and gallium, and the...
How Much Metal is in Solder Paste?
Something that seems counter-intuitive to many customers, yet seems obvious to a rheologist is why the percent metal loading of solder paste vari...
Tabbing Ribbon Flux for Solar Assembly
If you’re new to PV module assembly (tabbing in particular), you’re probably trying to get a feel for all the needed materials.&nbs...