Fluxless reflow with formic acid offers numerous benefits, including higher yields by eliminating flux-related defects, reduced floor space requirements with the removal of flux-related equipment, as well as reduced energy use and operating costs. While setting up a formic reflow process is similar to a standard reflow process, there are a few additional things that […]
2043MK5-F Formic Acid Reflow Ovens Oven Length 678cm Heated Zones 13 Top / 13 Bottom Total Heated Length 430 cm Cool Zones 3 Top (Bottom Option) Max Working Temperature Standard: 350°C Option: 400°C Cleanroom Option Down to Class 1000 Formic Acid Stability in Soak Zone +/- 1% Auto Refill Formic Acid Bubbler Formic Exhaust Abatement […]
1936MK5-F Formic Reflow Ovens Oven Length 590cm Heated Zones 10 Top / 10 Bottom Total Heated Length 348 cm Cool Zones 3 Top (Bottom Option) Max Working Temperature Standard: 350°C Option: 400°C Cleanroom Option Down to Class 1000 Formic Acid Stability in Soak Zone +/- 1% Auto Refill Formic Bubbler Formic Exhaust Abatement System Real […]
Re-printed in partnership with ITM Solder Ball Defects Defect: solder balls Solder balls are very small fines of solder that have separated from the main body that forms the joint. Their formation is promoted by excessive oxides in the solder paste that inhibit solder coalescence during reflow. Solder ball defects are probably the most common reflow […]
Fluxless Soldering Issues from using Flux Traditionally, using flux was a necessary part of soldering. Flux helps to remove oxides from the metals being solder, improving the overall wettability of solder needed for high quality solder joints. Using flux, however, has its drawbacks: Flux can outgas during the reflow process creating solder voids. Flux leaves […]
Fluxless/Formic Reflow Ovens Heller has designed and built a production ready horizontal Flux-Free Formic Reflow oven for formic acid vapor soldering. This new oven has been designed to meet Semi S2/S8 safety standards (including toxic gases). Our Formic Reflow Process. These formic reflow ovens operate like a normal reflow oven with the addition of formic […]