ACI Technologies, Inc. | https://www.aciusa.org/wp-content/uploads/2021/07/techtip10-2018.pdf
. Care must be taken to avoid downward pressure on the component for fear of damaging the lands. After the excess solder has been removed, clean off any remaining flux residue using a solvent that is chemically matched to the type of flux. Isopropyl alcohol (IPA
ACI Technologies, Inc. | https://www.aciusa.org/wp-content/uploads/2021/07/techtip4-2018.pdf
ACI Technologies, Inc Identifying Flux Residues Why identify flux residues? The primary purpose of flux is to reduce species of metal oxides from solderable surfaces, and to act as a mechanism for lifting and removing debris
ACI Technologies, Inc. | https://www.aciusa.org/wp-content/uploads/2021/07/techtip6-2019.pdf
. Solder braid is used next to remove smaller flecks of solder, also used with generous flux. For final cleaning and preparation, the BGA is carefully washed with isopropyl alcohol (IPA) to remove the flux
ACI Technologies, Inc. | https://www.aciusa.org/wp-content/uploads/2021/07/techtip9-2014.pdf
. Mixing no-clean fluxes with other flux types is not recommended. No-clean fluxes contaminated with RMA fluxes cannot be easily brush-cleaned with DI water and isopropyl alcohol (IPA
| 1 |
