Solder in Medical Devices: What Solder Are You Wearing?
Both hearing aids and CGMs, wearable medical devices, generally use fine powdered SAC305 solder paste, or an equivalent, in the assembly. This complie...
No Clean Flux
How Clean is Clean?
When you focus on trying to quantify the level of contaminating material that remains after the cleaning process, you leave the more important questio...
In-Circuit Testing with Fast-Break Residue No-Clean Solder Paste
This video is for those interested in In-Circuit Test (ICT) with no-clean solder paste. Keywords: Phil Zarrow, Glen Thomas, askus@indium.com, In-Circu...
4B or not 4B?... The Difference in the IPC Test Requirements for "no-clean" L0 Type Soldering Fluxes
Overall we believe that while the J-STD-004B standard may not be perfect and subject to future further evolution, it does provide the best available m...
Preheating Part VII - Lamp-Type Infrared and Ceramic Plate
Lamp style preheaters have the fastest response time of any of the previous preheaters mentioned in other posts. The lamp filament is practicall...
Preheating Part V - Quartz Plate
We continue our discussion of solder reflow methods. As the name suggests, quartz plate preheaters have thick quartz plates in which the heating eleme...
Reflow Profiling, Electrical Reliability, No-Clean Solder Paste Flux Residues
It sounds bad for me to say this, but I have a lot of SMT magazines cross my desk and, honestly, the solder paste articles rarely draw my interest. I ...
Fluxers Part III B - Spray Fluxer Venting: Wave Soldering (A Segmented Synopsis) Post #7
No matter how accurate the spray fluxer is there will at least be some flux that is not deposited on the board that needs to be removed from the syste...
Fluxers Part III - Spray: Wave Soldering (A Segmented Synopsis) Post #5
Spray Fluxing is the most common way to flux a printed circuit board today. When spray fluxers were first developed they were clumsy, inefficient......
Fluxers Part II - Wave: Wave Soldering (A Segmented Synopsis) Post #4
When the wave soldering machine was developed, the early flux application method was the same as the solder application method – a wave. While t...
Fluxers Part I - Foam: Wave Soldering (A Segmented Synopsis) Post #3
A wave solder machine’s foam fluxer is a device in which compressed air is fed through a porous tube (commonly referred......
Specifying Solder Preforms – Flux
Flux... It would be great to live in a world where we didn’t need it. Unfortunately, that same oxygen that keeps us alive slowly erodes the sold...